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|
set time_zone='+00:00';
set timestamp=unix_timestamp('2014-09-01 13:40:23');
set pseudo_thread_id=10;
set sql_mode=ansi_quotes;
set global div_precision_increment=5;
select * from information_schema.system_variables
where variable_name not like 'aria%' and
variable_name not like 'debug%' and
variable_name not like 'wsrep%' and
variable_name not in (
'have_openssl',
'have_symlink',
'hostname',
'large_files_support', 'log_tc_size',
'lower_case_file_system',
'lower_case_table_names',
'open_files_limit',
'rand_seed1',
'rand_seed2',
'system_time_zone',
'version_comment',
'version_compile_machine', 'version_compile_os',
'version_malloc_library', 'version_ssl_library', 'version'
)
order by variable_name;
VARIABLE_NAME AUTOCOMMIT
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT autocommit
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME AUTOMATIC_SP_PRIVILEGES
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Creating and dropping stored procedures alters ACLs
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME AUTO_INCREMENT_INCREMENT
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Auto-increment columns are incremented by this
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 65535
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME AUTO_INCREMENT_OFFSET
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Offset added to Auto-increment columns. Used when auto-increment-increment != 1
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 65535
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME BACK_LOG
SESSION_VALUE NULL
GLOBAL_VALUE 80
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 150
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of outstanding connection requests MariaDB can have. This comes into play when the main MySQL thread gets very many connection requests in a very short time
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 65535
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BASEDIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Path to installation directory. All paths are usually resolved relative to this
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BIG_TABLES
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Allow big result sets by saving all temporary sets on file (Solves most 'table full' errors)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME BINLOG_ANNOTATE_ROW_EVENTS
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Tells the master to annotate RBR events with the statement that caused these events
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME BINLOG_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 32768
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 32768
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the transactional cache for updates to transactional engines for the binary log. If you often use transactions containing many statements, you can increase this to get more performance
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_CHECKSUM
SESSION_VALUE NULL
GLOBAL_VALUE NONE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NONE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Type of BINLOG_CHECKSUM_ALG. Include checksum for log events in the binary log
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NONE,CRC32
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_COMMIT_WAIT_COUNT
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If non-zero, binlog write will wait at most binlog_commit_wait_usec microseconds for at least this many commits to queue up for group commit to the binlog. This can reduce I/O on the binlog and provide increased opportunity for parallel apply on the slave, but too high a value will decrease commit throughput.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_COMMIT_WAIT_USEC
SESSION_VALUE NULL
GLOBAL_VALUE 100000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum time, in microseconds, to wait for more commits to queue up for binlog group commit. Only takes effect if the value of binlog_commit_wait_count is non-zero.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_DIRECT_NON_TRANSACTIONAL_UPDATES
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Causes updates to non-transactional engines using statement format to be written directly to binary log. Before using this option make sure that there are no dependencies between transactional and non-transactional tables such as in the statement INSERT INTO t_myisam SELECT * FROM t_innodb; otherwise, slaves may diverge from the master.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME BINLOG_FORMAT
SESSION_VALUE STATEMENT
GLOBAL_VALUE STATEMENT
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE STATEMENT
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT What form of binary logging the master will use: either ROW for row-based binary logging, STATEMENT for statement-based binary logging, or MIXED. MIXED is statement-based binary logging except for those statements where only row-based is correct: those which involve user-defined functions (i.e. UDFs) or the UUID() function; for those, row-based binary logging is automatically used.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST MIXED,STATEMENT,ROW
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_OPTIMIZE_THREAD_SCHEDULING
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Run fast part of group commit in a single thread, to optimize kernel thread scheduling. On by default. Disable to run each transaction in group commit in its own thread, which can be slower at very high concurrency. This option is mostly for testing one algorithm versus the other, and it should not normally be necessary to change it.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_ROW_IMAGE
SESSION_VALUE FULL
GLOBAL_VALUE FULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE FULL
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Controls whether rows should be logged in 'FULL', 'NOBLOB' or 'MINIMAL' formats. 'FULL', means that all columns in the before and after image are logged. 'NOBLOB', means that mysqld avoids logging blob columns whenever possible (eg, blob column was not changed or is not part of primary key). 'MINIMAL', means that a PK equivalent (PK columns or full row if there is no PK in the table) is logged in the before image, and only changed columns are logged in the after image. (Default: FULL).
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST MINIMAL,NOBLOB,FULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BINLOG_STMT_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 32768
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 32768
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the statement cache for updates to non-transactional engines for the binary log. If you often use statements updating a great number of rows, you can increase this to get more performance
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME BULK_INSERT_BUFFER_SIZE
SESSION_VALUE 8388608
GLOBAL_VALUE 8388608
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8388608
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Size of tree cache used in bulk insert optimisation. Note that this is a limit per thread!
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME CHARACTER_SETS_DIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Directory where character sets are
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME CHARACTER_SET_CLIENT
SESSION_VALUE latin1
GLOBAL_VALUE latin1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The character set for statements that arrive from the client
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_CONNECTION
SESSION_VALUE latin1
GLOBAL_VALUE latin1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The character set used for literals that do not have a character set introducer and for number-to-string conversion
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_DATABASE
SESSION_VALUE latin1
GLOBAL_VALUE latin1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The character set used by the default database
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_FILESYSTEM
SESSION_VALUE binary
GLOBAL_VALUE binary
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE binary
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The filesystem character set
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_RESULTS
SESSION_VALUE latin1
GLOBAL_VALUE latin1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The character set used for returning query results to the client
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_SERVER
SESSION_VALUE latin1
GLOBAL_VALUE latin1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The default character set
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME CHARACTER_SET_SYSTEM
SESSION_VALUE NULL
GLOBAL_VALUE utf8
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The character set used by the server for storing identifiers
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME COLLATION_CONNECTION
SESSION_VALUE latin1_swedish_ci
GLOBAL_VALUE latin1_swedish_ci
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1_swedish_ci
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The collation of the connection character set
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME COLLATION_DATABASE
SESSION_VALUE latin1_swedish_ci
GLOBAL_VALUE latin1_swedish_ci
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1_swedish_ci
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The collation of the database character set
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME COLLATION_SERVER
SESSION_VALUE latin1_swedish_ci
GLOBAL_VALUE latin1_swedish_ci
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE latin1_swedish_ci
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The server default collation
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME COMPLETION_TYPE
SESSION_VALUE NO_CHAIN
GLOBAL_VALUE NO_CHAIN
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NO_CHAIN
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The transaction completion type
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NO_CHAIN,CHAIN,RELEASE
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME CONCURRENT_INSERT
SESSION_VALUE NULL
GLOBAL_VALUE AUTO
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE AUTO
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Use concurrent insert with MyISAM
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NEVER,AUTO,ALWAYS
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME CONNECT_TIMEOUT
SESSION_VALUE NULL
GLOBAL_VALUE 60
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 10
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of seconds the mysqld server is waiting for a connect packet before responding with 'Bad handshake'
NUMERIC_MIN_VALUE 2
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DATADIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE PATH
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Path to the database root directory
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DATETIME_FORMAT
SESSION_VALUE NULL
GLOBAL_VALUE %Y-%m-%d %H:%i:%s
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE %Y-%m-%d %H:%i:%s
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The DATETIME format (ignored)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DATE_FORMAT
SESSION_VALUE NULL
GLOBAL_VALUE %Y-%m-%d
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE %Y-%m-%d
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The DATE format (ignored)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEADLOCK_SEARCH_DEPTH_LONG
SESSION_VALUE 15
GLOBAL_VALUE 15
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 15
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Long search depth for the two-step deadlock detection
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 33
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEADLOCK_SEARCH_DEPTH_SHORT
SESSION_VALUE 4
GLOBAL_VALUE 4
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Short search depth for the two-step deadlock detection
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 32
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEADLOCK_TIMEOUT_LONG
SESSION_VALUE 50000000
GLOBAL_VALUE 50000000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 50000000
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Long timeout for the two-step deadlock detection (in microseconds)
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEADLOCK_TIMEOUT_SHORT
SESSION_VALUE 10000
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10000
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Short timeout for the two-step deadlock detection (in microseconds)
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEFAULT_MASTER_CONNECTION
SESSION_VALUE
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Master connection to use for all slave variables and slave commands
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME DEFAULT_REGEX_FLAGS
SESSION_VALUE
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
VARIABLE_COMMENT Default flags for the regex library
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST DOTALL,DUPNAMES,EXTENDED,EXTRA,MULTILINE,UNGREEDY
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DEFAULT_STORAGE_ENGINE
SESSION_VALUE MyISAM
GLOBAL_VALUE MyISAM
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE MyISAM
VARIABLE_SCOPE SESSION
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The default storage engine for new tables
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME DEFAULT_TMP_STORAGE_ENGINE
SESSION_VALUE
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The default storage engine for user-created temporary tables
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME DEFAULT_WEEK_FORMAT
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The default week format used by WEEK() functions
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 7
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DELAYED_INSERT_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT After inserting delayed_insert_limit rows, the INSERT DELAYED handler will check if there are any SELECT statements pending. If so, it allows these to execute before continuing
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DELAYED_INSERT_TIMEOUT
SESSION_VALUE NULL
GLOBAL_VALUE 300
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 300
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT How long a INSERT DELAYED thread should wait for INSERT statements before terminating
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DELAYED_QUEUE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT What size queue (in rows) should be allocated for handling INSERT DELAYED. If the queue becomes full, any client that does INSERT DELAYED will wait until there is room in the queue again
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME DELAY_KEY_WRITE
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Type of DELAY_KEY_WRITE
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON,ALL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME DIV_PRECISION_INCREMENT
SESSION_VALUE 4
GLOBAL_VALUE 5
GLOBAL_VALUE_ORIGIN SQL
DEFAULT_VALUE 4
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Precision of the result of '/' operator will be increased on that value
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 30
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME ENCRYPT_BINLOG
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Encrypt binary logs (including relay logs)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME ENCRYPT_TMP_DISK_TABLES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Encrypt temporary on-disk tables (created as part of query execution)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME ENCRYPT_TMP_FILES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Encrypt temporary files (created for filesort, binary log cache, etc)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME ENFORCE_STORAGE_ENGINE
SESSION_VALUE
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Force the use of a storage engine for new tables
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME ERROR_COUNT
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of errors that resulted from the last statement that generated messages
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME EVENT_SCHEDULER
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Enable the event scheduler. Possible values are ON, OFF, and DISABLED (keep the event scheduler completely deactivated, it cannot be activated run-time)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON,DISABLED,ORIGINAL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME EXPENSIVE_SUBQUERY_LIMIT
SESSION_VALUE 100
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum number of rows a subquery may examine in order to be executed during optimization and used for constant optimization
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME EXPIRE_LOGS_DAYS
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If non-zero, binary logs will be purged after expire_logs_days days; possible purges happen at startup and at binary log rotation
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 99
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME EXPLICIT_DEFAULTS_FOR_TIMESTAMP
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses. The old behavior is deprecated.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME EXTERNAL_USER
SESSION_VALUE
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The external user account used when logging in
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME EXTRA_MAX_CONNECTIONS
SESSION_VALUE NULL
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of connections on extra-port
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 100000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME EXTRA_PORT
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Extra port number to use for tcp connections in a one-thread-per-connection manner. 0 means don't use another port
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FLUSH
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Flush MyISAM tables to disk between SQL commands
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME FLUSH_TIME
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT A dedicated thread is created to flush all tables at the given interval
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FOREIGN_KEY_CHECKS
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT foreign_key_checks
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME FT_BOOLEAN_SYNTAX
SESSION_VALUE NULL
GLOBAL_VALUE + -><()~*:""&|
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE + -><()~*:""&|
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT List of operators for MATCH ... AGAINST ( ... IN BOOLEAN MODE)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FT_MAX_WORD_LEN
SESSION_VALUE NULL
GLOBAL_VALUE 84
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 84
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable
NUMERIC_MIN_VALUE 10
NUMERIC_MAX_VALUE 84
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FT_MIN_WORD_LEN
SESSION_VALUE NULL
GLOBAL_VALUE 4
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The minimum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 84
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FT_QUERY_EXPANSION_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 20
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 20
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of best matches to use for query expansion
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME FT_STOPWORD_FILE
SESSION_VALUE NULL
GLOBAL_VALUE (built-in)
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Use stopwords from this file instead of built-in list
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME GENERAL_LOG
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Log connections and queries to a table or log file. Defaults logging to a file 'hostname'.log or a table mysql.general_logif --log-output=TABLE is used
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME GENERAL_LOG_FILE
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Log connections and queries to given file
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME GROUP_CONCAT_MAX_LEN
SESSION_VALUE 1024
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum length of the result of function GROUP_CONCAT()
NUMERIC_MIN_VALUE 4
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME GTID_BINLOG_POS
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Last GTID logged to the binary log, per replicationdomain
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME GTID_BINLOG_STATE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The internal GTID state of the binlog, used to keep track of all GTIDs ever logged to the binlog.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME GTID_CURRENT_POS
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Current GTID position of the server. Per replication domain, this is either the last GTID replicated by a slave thread, or the GTID logged to the binary log, whichever is most recent.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME GTID_DOMAIN_ID
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Used with global transaction ID to identify logically independent replication streams. When events can propagate through multiple parallel paths (for example multiple masters), each independent source server must use a distinct domain_id. For simple tree-shaped replication topologies, it can be left at its default, 0.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME GTID_IGNORE_DUPLICATES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT When set, different master connections in multi-source replication are allowed to receive and process event groups with the same GTID (when using GTID mode). Only one will be applied, any others will be ignored. Within a given replication domain, just the sequence number will be used to decide whether a given GTID has been already applied; this means it is the responsibility of the user to ensure that GTID sequence numbers are strictly increasing.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME GTID_SEQ_NO
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Internal server usage, for replication with global transaction id. When set, next event group logged to the binary log will use this sequence number, not generate a new one, thus allowing to preserve master's GTID in slave's binlog.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME GTID_SLAVE_POS
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The list of global transaction IDs that were last replicated on the server, one for each replication domain.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME GTID_STRICT_MODE
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enforce strict seq_no ordering of events in the binary log. Slave stops with an error if it encounters an event that would cause it to generate an out-of-order binlog if executed.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME HAVE_COMPRESS
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_compress
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_CRYPT
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_crypt
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_DYNAMIC_LOADING
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_dynamic_loading
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_GEOMETRY
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_geometry
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_PROFILING
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_profiling
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_QUERY_CACHE
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_query_cache
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_RTREE_KEYS
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_rtree_keys
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_SSL
SESSION_VALUE NULL
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_ssl
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HISTOGRAM_SIZE
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of bytes used for a histogram. If set to 0, no histograms are created by ANALYZE.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 255
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME HISTOGRAM_TYPE
SESSION_VALUE SINGLE_PREC_HB
GLOBAL_VALUE SINGLE_PREC_HB
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE SINGLE_PREC_HB
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Specifies type of the histograms created by ANALYZE. Possible values are: SINGLE_PREC_HB - single precision height-balanced, DOUBLE_PREC_HB - double precision height-balanced.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST SINGLE_PREC_HB,DOUBLE_PREC_HB
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME HOST_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 279
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 128
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT How many host names should be cached to avoid resolving.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 65536
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME IDENTITY
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Synonym for the last_insert_id variable
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME IGNORE_BUILTIN_INNODB
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Disable initialization of builtin InnoDB plugin
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME IGNORE_DB_DIRS
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Specifies a directory to add to the ignore list when collecting database names from the datadir. Put a blank argument to reset the list accumulated so far.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INIT_CONNECT
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Command(s) that are executed for each new connection (unless the user has SUPER privilege)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INIT_FILE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Read SQL commands from this file at startup
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INIT_SLAVE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Command(s) that are executed by a slave server each time the SQL thread starts
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INSERT_ID
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The value to be used by the following INSERT or ALTER TABLE statement when inserting an AUTO_INCREMENT value
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME INTERACTIVE_TIMEOUT
SESSION_VALUE 28800
GLOBAL_VALUE 28800
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 28800
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of seconds the server waits for activity on an interactive connection before closing it
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME IN_TRANSACTION
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Whether there is an active transaction
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME JOIN_BUFFER_SIZE
SESSION_VALUE 262144
GLOBAL_VALUE 262144
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 262144
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the buffer that is used for joins
NUMERIC_MIN_VALUE 128
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 128
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME JOIN_BUFFER_SPACE_LIMIT
SESSION_VALUE 2097152
GLOBAL_VALUE 2097152
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2097152
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The limit of the space for all join buffers used by a query
NUMERIC_MIN_VALUE 2048
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 2048
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME JOIN_CACHE_LEVEL
SESSION_VALUE 2
GLOBAL_VALUE 2
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Controls what join operations can be executed with join buffers. Odd numbers are used for plain join buffers while even numbers are used for linked buffers
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 8
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEEP_FILES_ON_CREATE
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Don't overwrite stale .MYD and .MYI even if no directory is specified
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME KEY_BUFFER_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1048576
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 134217728
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEY_CACHE_AGE_THRESHOLD
SESSION_VALUE NULL
GLOBAL_VALUE 300
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 300
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache
NUMERIC_MIN_VALUE 100
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 100
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEY_CACHE_BLOCK_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The default size of key cache blocks
NUMERIC_MIN_VALUE 512
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 512
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEY_CACHE_DIVISION_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The minimum percentage of warm blocks in key cache
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 100
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEY_CACHE_FILE_HASH_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 512
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 512
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of hash buckets for open and changed files. If you have a lot of MyISAM files open you should increase this for faster flush of changes. A good value is probably 1/10 of number of possible open MyISAM files.
NUMERIC_MIN_VALUE 128
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME KEY_CACHE_SEGMENTS
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of segments in a key cache
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 64
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LARGE_PAGES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enable support for large pages
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LARGE_PAGE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT If large page support is enabled, this shows the size of memory pages
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LAST_GTID
SESSION_VALUE
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The GTID of the last commit (if binlogging was enabled), or the empty string if none.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LAST_INSERT_ID
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The value to be returned from LAST_INSERT_ID()
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LC_MESSAGES
SESSION_VALUE en_US
GLOBAL_VALUE en_US
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE en_US
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Set the language used for the error messages
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LC_MESSAGES_DIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Directory where error messages are
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LC_TIME_NAMES
SESSION_VALUE en_US
GLOBAL_VALUE en_US
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE en_US
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Set the language used for the month names and the days of the week
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LICENSE
SESSION_VALUE NULL
GLOBAL_VALUE GPL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The type of license the server has
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOCAL_INFILE
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enable LOAD DATA LOCAL INFILE
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LOCKED_IN_MEMORY
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Whether mysqld was locked in memory with --memlock
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOCK_WAIT_TIMEOUT
SESSION_VALUE 31536000
GLOBAL_VALUE 31536000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 31536000
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Timeout in seconds to wait for a lock before returning an error.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOG_BIN
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Whether the binary log is enabled
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOG_BIN_BASENAME
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The full path of the binary log file names, excluding the extension.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOG_BIN_INDEX
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT File that holds the names for last binary log files.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOG_BIN_TRUST_FUNCTION_CREATORS
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT If set to FALSE (the default), then when --log-bin is used, creation of a stored function (or trigger) is allowed only to users having the SUPER privilege and only if this stored function (trigger) may not break binary logging. Note that if ALL connections to this server ALWAYS use row-based binary logging, the security issues do not exist and the binary logging cannot break, so you can safely set this to TRUE
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LOG_ERROR
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Log errors to file (instead of stdout). If file name is not specified then 'datadir'/'log-basename'.err or the 'pid-file' path with extension .err is used
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LOG_OUTPUT
SESSION_VALUE NULL
GLOBAL_VALUE FILE
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE FILE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE SET
VARIABLE_COMMENT How logs should be written
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NONE,FILE,TABLE
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOG_QUERIES_NOT_USING_INDEXES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Log queries that are executed without benefit of any index to the slow log if it is open
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LOG_SLAVE_UPDATES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Tells the slave to log the updates from the slave thread to the binary log. You will need to turn it on if you plan to daisy-chain the slaves
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LOG_SLOW_FILTER
SESSION_VALUE admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
GLOBAL_VALUE admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
VARIABLE_COMMENT Log only certain types of queries
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOG_SLOW_RATE_LIMIT
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Write to slow log every #th slow query. Set to 1 to log everything. Increase it to reduce the size of the slow or the performance impact of slow logging
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOG_SLOW_VERBOSITY
SESSION_VALUE
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
VARIABLE_COMMENT Verbosity level for the slow log
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST innodb,query_plan,explain
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOG_WARNINGS
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Log some not critical warnings to the general log file.Value can be between 0 and 11. Higher values mean more verbosity
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME LONG_QUERY_TIME
SESSION_VALUE 10.000000
GLOBAL_VALUE 10.000000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10.000000
VARIABLE_SCOPE SESSION
VARIABLE_TYPE DOUBLE
VARIABLE_COMMENT Log all queries that have taken more than long_query_time seconds to execute to file. The argument will be treated as a decimal value with microsecond precision
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME LOW_PRIORITY_UPDATES
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT INSERT/DELETE/UPDATE has lower priority than selects
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME MASTER_VERIFY_CHECKSUM
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Force checksum verification of logged events in the binary log before sending them to slaves or printing them in the output of SHOW BINLOG EVENTS
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME MAX_ALLOWED_PACKET
SESSION_VALUE 4194304
GLOBAL_VALUE 4194304
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4194304
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Max packet length to send to or receive from the server
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 1073741824
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_BINLOG_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 18446744073709547520
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 18446744073709547520
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Sets the total size of the transactional cache
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_BINLOG_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1073741824
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1073741824
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Binary log will be rotated automatically when the size exceeds this value.
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 1073741824
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_BINLOG_STMT_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 18446744073709547520
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 18446744073709547520
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Sets the total size of the statement cache
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_CONNECTIONS
SESSION_VALUE NULL
GLOBAL_VALUE 151
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 151
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of simultaneous clients allowed
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 100000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_CONNECT_ERRORS
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If there is more than this number of interrupted connections from a host this host will be blocked from further connections
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_DELAYED_THREADS
SESSION_VALUE 20
GLOBAL_VALUE 20
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 20
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero INSERT DELAYED will be not used
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_DIGEST_LENGTH
SESSION_VALUE NULL
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Maximum length considered for digest text.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_ERROR_COUNT
SESSION_VALUE 64
GLOBAL_VALUE 64
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 64
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Max number of errors/warnings to store for a statement
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 65535
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_HEAP_TABLE_SIZE
SESSION_VALUE 1048576
GLOBAL_VALUE 1048576
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 16777216
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't allow creation of heap tables bigger than this
NUMERIC_MIN_VALUE 16384
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_INSERT_DELAYED_THREADS
SESSION_VALUE 20
GLOBAL_VALUE 20
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 20
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero INSERT DELAYED will be not used
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME MAX_JOIN_SIZE
SESSION_VALUE 18446744073709551615
GLOBAL_VALUE 18446744073709551615
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 18446744073709551615
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Joins that are probably going to read more than max_join_size records return an error
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_LENGTH_FOR_SORT_DATA
SESSION_VALUE 1024
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Max number of bytes in sorted records
NUMERIC_MIN_VALUE 4
NUMERIC_MAX_VALUE 8388608
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_LONG_DATA_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 4194304
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 1048576
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum BLOB length to send to server from mysql_send_long_data API. Deprecated option; use max_allowed_packet instead.
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_PREPARED_STMT_COUNT
SESSION_VALUE NULL
GLOBAL_VALUE 16382
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16382
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of prepared statements in the server
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_RELAY_LOG_SIZE
SESSION_VALUE 1073741824
GLOBAL_VALUE 1073741824
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 1073741824
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT relay log will be rotated automatically when the size exceeds this value. If 0 at startup, it's set to max_binlog_size
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 1073741824
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_SEEKS_FOR_KEY
SESSION_VALUE 4294967295
GLOBAL_VALUE 4294967295
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4294967295
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Limit assumed max number of seeks when looking up rows based on a key
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_SORT_LENGTH
SESSION_VALUE 1024
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of bytes to use when sorting BLOB or TEXT values (only the first max_sort_length bytes of each value are used; the rest are ignored)
NUMERIC_MIN_VALUE 4
NUMERIC_MAX_VALUE 8388608
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_SP_RECURSION_DEPTH
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum stored procedure recursion depth
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 255
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME MAX_STATEMENT_TIME
SESSION_VALUE 0.000000
GLOBAL_VALUE 0.000000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0.000000
VARIABLE_SCOPE SESSION
VARIABLE_TYPE DOUBLE
VARIABLE_COMMENT A SELECT query that have taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_TMP_TABLES
SESSION_VALUE 32
GLOBAL_VALUE 32
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 32
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Unused, will be removed.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_USER_CONNECTIONS
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE INT
VARIABLE_COMMENT The maximum number of active connections for a single user (0 = no limit)
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MAX_WRITE_LOCK_COUNT
SESSION_VALUE NULL
GLOBAL_VALUE 4294967295
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4294967295
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT After this many write locks, allow some read locks to run in between
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME METADATA_LOCKS_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Unused
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME METADATA_LOCKS_HASH_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 8
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Unused
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1024
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MIN_EXAMINED_ROW_LIMIT
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't write queries to slow log that examine fewer rows than that
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MRR_BUFFER_SIZE
SESSION_VALUE 262144
GLOBAL_VALUE 262144
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 262144
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Size of buffer to use when using MRR with range access
NUMERIC_MIN_VALUE 8192
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MULTI_RANGE_COUNT
SESSION_VALUE 256
GLOBAL_VALUE 256
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 256
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Ignored. Use mrr_buffer_size instead
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_BLOCK_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Block size to be used for MyISAM index pages
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_DATA_POINTER_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 6
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 6
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Default pointer size to be used for MyISAM tables
NUMERIC_MIN_VALUE 2
NUMERIC_MAX_VALUE 7
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_MAX_SORT_FILE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 9223372036853727232
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 9223372036853727232
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't use the fast sort index method to created index if the temporary file would get bigger than this
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 9223372036854775807
NUMERIC_BLOCK_SIZE 1048576
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_MMAP_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 18446744073709551615
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 18446744073709551615
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Restricts the total memory used for memory mapping of MySQL tables
NUMERIC_MIN_VALUE 7
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_RECOVER_OPTIONS
SESSION_VALUE NULL
GLOBAL_VALUE DEFAULT
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE DEFAULT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE SET
VARIABLE_COMMENT Specifies how corrupted tables should be automatically repaired
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST DEFAULT,BACKUP,FORCE,QUICK,BACKUP_ALL,OFF
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME MYISAM_REPAIR_THREADS
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If larger than 1, when repairing a MyISAM table all indexes will be created in parallel, with one thread per index. The value of 1 disables parallel repair
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_SORT_BUFFER_SIZE
SESSION_VALUE 134216704
GLOBAL_VALUE 134216704
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 134216704
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_STATS_METHOD
SESSION_VALUE NULLS_UNEQUAL
GLOBAL_VALUE NULLS_UNEQUAL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULLS_UNEQUAL
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Specifies how MyISAM index statistics collection code should treat NULLs. Possible values of name are NULLS_UNEQUAL (default behavior for 4.1 and later), NULLS_EQUAL (emulate 4.0 behavior), and NULLS_IGNORED
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULLS_UNEQUAL,NULLS_EQUAL,NULLS_IGNORED
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME MYISAM_USE_MMAP
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use memory mapping for reading and writing MyISAM tables
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NONE
VARIABLE_NAME MYSQL56_TEMPORAL_FORMAT
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use MySQL-5.6 (instead of MariaDB-5.3) format for TIME, DATETIME, TIMESTAMP columns.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME NET_BUFFER_LENGTH
SESSION_VALUE 16384
GLOBAL_VALUE 16384
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16384
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Buffer length for TCP/IP and socket communication
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME NET_READ_TIMEOUT
SESSION_VALUE 30
GLOBAL_VALUE 30
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 30
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of seconds to wait for more data from a connection before aborting the read
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME NET_RETRY_COUNT
SESSION_VALUE 10
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If a read on a communication port is interrupted, retry this many times before giving up
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME NET_WRITE_TIMEOUT
SESSION_VALUE 60
GLOBAL_VALUE 60
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 60
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of seconds to wait for a block to be written to a connection before aborting the write
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OLD
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use compatible behavior from previous MariaDB version. See also --old-mode
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME OLD_ALTER_TABLE
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use old, non-optimized alter table
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME OLD_MODE
SESSION_VALUE
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
VARIABLE_COMMENT Used to emulate old behavior from earlier MariaDB or MySQL versions
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NO_DUP_KEY_WARNINGS_WITH_IGNORE,NO_PROGRESS_INFO,ZERO_DATE_TIME_CAST
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OLD_PASSWORDS
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use old password encryption method (needed for 4.0 and older clients)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME OPTIMIZER_PRUNE_LEVEL
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Controls the heuristic(s) applied during query optimization to prune less-promising partial plans from the optimizer search space. Meaning: 0 - do not apply any heuristic, thus perform exhaustive search; 1 - prune plans based on number of retrieved rows
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OPTIMIZER_SEARCH_DEPTH
SESSION_VALUE 62
GLOBAL_VALUE 62
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 62
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum depth of search performed by the query optimizer. Values larger than the number of relations in a query result in better query plans, but take longer to compile a query. Values smaller than the number of tables in a relation result in faster optimization, but may produce very bad query plans. If set to 0, the system will automatically pick a reasonable value; if set to 63, the optimizer will switch to the original find_best search. NOTE: The value 63 and its associated behaviour is deprecated
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 63
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OPTIMIZER_SELECTIVITY_SAMPLING_LIMIT
SESSION_VALUE 100
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Controls number of record samples to check condition selectivity
NUMERIC_MIN_VALUE 10
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OPTIMIZER_SWITCH
SESSION_VALUE index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on
GLOBAL_VALUE index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on
VARIABLE_SCOPE SESSION
VARIABLE_TYPE FLAGSET
VARIABLE_COMMENT Fine-tune the optimizer behavior
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST index_merge,index_merge_union,index_merge_sort_union,index_merge_intersection,index_merge_sort_intersection,engine_condition_pushdown,index_condition_pushdown,derived_merge,derived_with_keys,firstmatch,loosescan,materialization,in_to_exists,semijoin,partial_match_rowid_merge,partial_match_table_scan,subquery_cache,mrr,mrr_cost_based,mrr_sort_keys,outer_join_with_cache,semijoin_with_cache,join_cache_incremental,join_cache_hashed,join_cache_bka,optimize_join_buffer_size,table_elimination,extended_keys,exists_to_in,default
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME OPTIMIZER_USE_CONDITION_SELECTIVITY
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Controls selectivity of which conditions the optimizer takes into account to calculate cardinality of a partial join when it searches for the best execution plan Meaning: 1 - use selectivity of index backed range conditions to calculate the cardinality of a partial join if the last joined table is accessed by full table scan or an index scan, 2 - use selectivity of index backed range conditions to calculate the cardinality of a partial join in any case, 3 - additionally always use selectivity of range conditions that are not backed by any index to calculate the cardinality of a partial join, 4 - use histograms to calculate selectivity of range conditions that are not backed by any index to calculate the cardinality of a partial join.5 - additionally use selectivity of certain non-range predicates calculated on record samples
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 5
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enable the performance schema.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME PERFORMANCE_SCHEMA_ACCOUNTS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented user@host accounts. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_DIGESTS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 200
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Size of the statement digest. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 200
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_STAGES_HISTORY_LONG_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows in EVENTS_STAGES_HISTORY_LONG. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_STAGES_HISTORY_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows per thread in EVENTS_STAGES_HISTORY. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1024
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_STATEMENTS_HISTORY_LONG_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows in EVENTS_STATEMENTS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_STATEMENTS_HISTORY_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows per thread in EVENTS_STATEMENTS_HISTORY. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1024
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_LONG_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Number of rows per thread in EVENTS_WAITS_HISTORY. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1024
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_HOSTS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented hosts. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_COND_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 80
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 80
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of condition instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_COND_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented condition objects. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_DIGEST_LENGTH
SESSION_VALUE NULL
GLOBAL_VALUE 1024
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum length considered for digest text, when stored in performance_schema tables.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_FILE_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 50
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 50
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of file instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_FILE_HANDLES
SESSION_VALUE NULL
GLOBAL_VALUE 32768
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 32768
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of opened instrumented files.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_FILE_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented files. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_MUTEX_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 200
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 200
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of mutex instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_MUTEX_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 5000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented MUTEX objects. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 104857600
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_RWLOCK_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 40
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 40
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of rwlock instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_RWLOCK_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 5000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented RWLOCK objects. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 104857600
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_SOCKET_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of socket instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_SOCKET_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of opened instrumented sockets. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_STAGE_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 150
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 150
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of stage instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_STATEMENT_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 178
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 178
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of statement instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_TABLE_HANDLES
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of opened instrumented tables. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_TABLE_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 500
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented tables. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_THREAD_CLASSES
SESSION_VALUE NULL
GLOBAL_VALUE 50
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 50
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of thread instruments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 256
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_MAX_THREAD_INSTANCES
SESSION_VALUE NULL
GLOBAL_VALUE 200
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented threads. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_SESSION_CONNECT_ATTRS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 2048
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Size of session attribute string buffer per thread. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_SETUP_ACTORS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of rows in SETUP_ACTORS.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1024
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_SETUP_OBJECTS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of rows in SETUP_OBJECTS.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PERFORMANCE_SCHEMA_USERS_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 100
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE -1
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT
VARIABLE_COMMENT Maximum number of instrumented users. Use 0 to disable, -1 for automated sizing.
NUMERIC_MIN_VALUE -1
NUMERIC_MAX_VALUE 1048576
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PID_FILE
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Pid file used by safe_mysqld
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PLUGIN_DIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Directory for plugins
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PLUGIN_MATURITY
SESSION_VALUE NULL
GLOBAL_VALUE unknown
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE unknown
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The lowest desirable plugin maturity. Plugins less mature than that will not be installed or loaded
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST unknown,experimental,alpha,beta,gamma,stable
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PORT
SESSION_VALUE NULL
GLOBAL_VALUE MASTER_MYPORT
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Port number to use for connection or 0 to default to, my.cnf, $MYSQL_TCP_PORT, /etc/services, built-in default (3306), whatever comes first
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PRELOAD_BUFFER_SIZE
SESSION_VALUE 32768
GLOBAL_VALUE 32768
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 32768
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the buffer that is allocated when preloading indexes
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 1073741824
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PROFILING
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT profiling
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME PROFILING_HISTORY_SIZE
SESSION_VALUE 15
GLOBAL_VALUE 15
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 15
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Limit of query profiling memory
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 100
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PROGRESS_REPORT_TIME
SESSION_VALUE 5
GLOBAL_VALUE 5
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 5
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Seconds between sending progress reports to the client for time-consuming statements. Set to 0 to disable progress reporting.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME PROTOCOL_VERSION
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT The version of the client/server protocol used by the MySQL server
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME PROXY_USER
SESSION_VALUE
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The proxy user account name used when logging in
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME PSEUDO_SLAVE_MODE
SESSION_VALUE OFF
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT SET pseudo_slave_mode= 0,1 are commands that mysqlbinlog adds to beginning and end of binary log dumps. While zero value indeed disables, the actual enabling of the slave applier execution mode is done implicitly when a Format_description_event is sent through the session.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME PSEUDO_THREAD_ID
SESSION_VALUE 10
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT This variable is for internal server use
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME QUERY_ALLOC_BLOCK_SIZE
SESSION_VALUE 16384
GLOBAL_VALUE 16384
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16384
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Allocation block size for query parsing and execution
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME QUERY_CACHE_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 1048576
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1048576
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Don't cache results that are bigger than this
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME QUERY_CACHE_MIN_RES_UNIT
SESSION_VALUE NULL
GLOBAL_VALUE 4096
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4096
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The minimum size for blocks allocated by the query cache
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 8
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME QUERY_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 1048576
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1048576
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The memory allocated to store results from old queries
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME QUERY_CACHE_STRIP_COMMENTS
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Strip all comments from a query before storing it in the query cache
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME QUERY_CACHE_TYPE
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT OFF = Don't cache or retrieve results. ON = Cache all results except SELECT SQL_NO_CACHE ... queries. DEMAND = Cache only SELECT SQL_CACHE ... queries
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON,DEMAND
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME QUERY_CACHE_WLOCK_INVALIDATE
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Invalidate queries in query cache on LOCK for write
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME QUERY_PREALLOC_SIZE
SESSION_VALUE 24576
GLOBAL_VALUE 24576
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 24576
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Persistent buffer for query parsing and execution
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME RANGE_ALLOC_BLOCK_SIZE
SESSION_VALUE 4096
GLOBAL_VALUE 4096
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4096
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Allocation block size for storing ranges during optimization
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME READ_BUFFER_SIZE
SESSION_VALUE 131072
GLOBAL_VALUE 131072
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 131072
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value
NUMERIC_MIN_VALUE 8192
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE 4096
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME READ_ONLY
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the SUPER privilege
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME READ_RND_BUFFER_SIZE
SESSION_VALUE 262144
GLOBAL_VALUE 262144
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 262144
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT When reading rows in sorted order after a sort, the rows are read through this buffer to avoid a disk seeks
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME RELAY_LOG
SESSION_VALUE NULL
GLOBAL_VALUE mysqld-relay-bin
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The location and name to use for relay logs
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME RELAY_LOG_BASENAME
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The full path of the relay log file names, excluding the extension.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME RELAY_LOG_INDEX
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The location and name to use for the file that keeps a list of the last relay logs
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME RELAY_LOG_INFO_FILE
SESSION_VALUE NULL
GLOBAL_VALUE relay-log.info
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The location and name of the file that remembers where the SQL replication thread is in the relay logs
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME RELAY_LOG_PURGE
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT if disabled - do not purge relay logs. if enabled - purge them as soon as they are no more needed
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME RELAY_LOG_RECOVERY
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enables automatic relay log recovery right after the database startup, which means that the IO Thread starts re-fetching from the master right after the last transaction processed
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME RELAY_LOG_SPACE_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum space to use for all relay logs
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME REPLICATE_ANNOTATE_ROW_EVENTS
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Tells the slave to write annotate rows events received from the master to its own binary log. Ignored if log_slave_updates is not set
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME REPLICATE_DO_DB
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tell the slave to restrict replication to updates of tables whose names appear in the comma-separated list. For statement-based replication, only the default database (that is, the one selected by USE) is considered, not any explicitly mentioned tables in the query. For row-based replication, the actual names of table(s) being updated are checked.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPLICATE_DO_TABLE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tells the slave to restrict replication to tables in the comma-separated list.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPLICATE_EVENTS_MARKED_FOR_SKIP
SESSION_VALUE NULL
GLOBAL_VALUE REPLICATE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE REPLICATE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Whether the slave should replicate events that were created with @@skip_replication=1 on the master. Default REPLICATE (no events are skipped). Other values are FILTER_ON_SLAVE (events will be sent by the master but ignored by the slave) and FILTER_ON_MASTER (events marked with @@skip_replication=1 will be filtered on the master and never be sent to the slave).
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST REPLICATE,FILTER_ON_SLAVE,FILTER_ON_MASTER
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME REPLICATE_IGNORE_DB
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tell the slave to restrict replication to updates of tables whose names do not appear in the comma-separated list. For statement-based replication, only the default database (that is, the one selected by USE) is considered, not any explicitly mentioned tables in the query. For row-based replication, the actual names of table(s) being updated are checked.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPLICATE_IGNORE_TABLE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tells the slave thread not to replicate any statement that updates the specified table, even if any other tables might be updated by the same statement.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPLICATE_WILD_DO_TABLE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tells the slave thread to restrict replication to statements where any of the updated tables match the specified database and table name patterns.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPLICATE_WILD_IGNORE_TABLE
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tells the slave thread to not replicate to the tables that match the given wildcard pattern.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME REPORT_HOST
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Hostname or IP of the slave to be reported to the master during slave registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset if you do not want the slave to register itself with the master. Note that it is not sufficient for the master to simply read the IP of the slave off the socket once the slave connects. Due to NAT and other routing issues, that IP may not be valid for connecting to the slave from the master or other hosts
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME REPORT_PASSWORD
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The account password of the slave to be reported to the master during slave registration
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME REPORT_PORT
SESSION_VALUE NULL
GLOBAL_VALUE MASTER_MYPORT
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Port for connecting to slave reported to the master during slave registration. Set it only if the slave is listening on a non-default port or if you have a special tunnel from the master or other clients to the slave. If not sure, leave this option unset
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME REPORT_USER
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The account user name of the slave to be reported to the master during slave registration
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME ROWID_MERGE_BUFF_SIZE
SESSION_VALUE 8388608
GLOBAL_VALUE 8388608
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8388608
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The size of the buffers used [NOT] IN evaluation via partial matching
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 9223372036854775807
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SECURE_AUTH
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Disallow authentication for accounts that have old (pre-4.1) passwords
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SECURE_FILE_PRIV
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SERVER_ID
SESSION_VALUE 1
GLOBAL_VALUE 1
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Uniquely identifies the server instance in the community of replication partners
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SKIP_EXTERNAL_LOCKING
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Don't use system (external) locking
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SKIP_NAME_RESOLVE
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Don't resolve hostnames. All hostnames are IP's or 'localhost'.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SKIP_NETWORKING
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Don't allow connection with TCP/IP
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SKIP_PARALLEL_REPLICATION
SESSION_VALUE OFF
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT If set when a transaction is written to the binlog, parallel apply of that transaction will be avoided on a slave where slave_parallel_mode is not "aggressive". Can be used to avoid unnecessary rollback and retry for transactions that are likely to cause a conflict if replicated in parallel.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SKIP_REPLICATION
SESSION_VALUE OFF
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT skip_replication
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SKIP_SHOW_DATABASE
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Don't allow 'SHOW DATABASE' commands
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SLAVE_COMPRESSED_PROTOCOL
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Use compression on master/slave protocol
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SLAVE_DDL_EXEC_MODE
SESSION_VALUE NULL
GLOBAL_VALUE IDEMPOTENT
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE IDEMPOTENT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT How replication events should be executed. Legal values are STRICT and IDEMPOTENT (default). In IDEMPOTENT mode, replication will not stop for DDL operations that are idempotent. This means that CREATE TABLE is treated as CREATE TABLE OR REPLACE and DROP TABLE is treated as DROP TABLE IF EXISTS.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST STRICT,IDEMPOTENT
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_DOMAIN_PARALLEL_THREADS
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Maximum number of parallel threads to use on slave for events in a single replication domain. When using multiple domains, this can be used to limit a single domain from grabbing all threads and thus stalling other domains. The default of 0 means to allow a domain to grab as many threads as it wants, up to the value of slave_parallel_threads.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16383
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_EXEC_MODE
SESSION_VALUE NULL
GLOBAL_VALUE STRICT
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE STRICT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT How replication events should be executed. Legal values are STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode, replication will not stop for operations that are idempotent. For example, in row based replication attempts to delete rows that doesn't exist will be ignored. In STRICT mode, replication will stop on any unexpected difference between the master and the slave
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST STRICT,IDEMPOTENT
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_LOAD_TMPDIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The location where the slave should put its temporary files when replicating a LOAD DATA INFILE command
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_MAX_ALLOWED_PACKET
SESSION_VALUE NULL
GLOBAL_VALUE 1073741824
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1073741824
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum packet length to sent successfully from the master to slave.
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 1073741824
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_NET_TIMEOUT
SESSION_VALUE NULL
GLOBAL_VALUE 120
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 3600
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Number of seconds to wait for more data from any master/slave connection before aborting the read
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_PARALLEL_MAX_QUEUED
SESSION_VALUE NULL
GLOBAL_VALUE 131072
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 131072
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Limit on how much memory SQL threads should use per parallel replication thread when reading ahead in the relay log looking for opportunities for parallel replication. Only used when --slave-parallel-threads > 0.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_PARALLEL_MODE
SESSION_VALUE NULL
GLOBAL_VALUE conservative
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE conservative
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Controls what transactions are applied in parallel when using --slave-parallel-threads. Possible values: "optimistic" tries to apply most transactional DML in parallel, and handles any conflicts with rollback and retry. "conservative" limits parallelism in an effort to avoid any conflicts. "aggressive" tries to maximise the parallelism, possibly at the cost of increased conflict rate. "minimal" only parallelizes the commit steps of transactions. "none" disables parallel apply completely.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST none,minimal,conservative,optimistic,aggressive
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SLAVE_PARALLEL_THREADS
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If non-zero, number of threads to spawn to apply in parallel events on the slave that were group-committed on the master or were logged with GTID in different replication domains. Note that these threads are in addition to the IO and SQL threads, which are always created by a replication slave
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16383
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_RUN_TRIGGERS_FOR_RBR
SESSION_VALUE NULL
GLOBAL_VALUE NO
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NO
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Modes for how triggers in row-base replication on slave side will be executed. Legal values are NO (default), YES and LOGGING. NO means that trigger for RBR will not be running on slave. YES and LOGGING means that triggers will be running on slave, if there was not triggers running on the master for the statement. LOGGING also means results of that the executed triggers work will be written to the binlog.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NO,YES,LOGGING
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_SKIP_ERRORS
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Tells the slave thread to continue replication when a query event returns an error from the provided list
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_SQL_VERIFY_CHECKSUM
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Force checksum verification of replication events after reading them from relay log. Note: Events are always checksum-verified by slave on receiving them from the network before writing them to the relay log
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SLAVE_TRANSACTION_RETRIES
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Number of times the slave SQL thread will retry a transaction in case it failed with a deadlock or elapsed lock wait timeout, before giving up and stopping
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLAVE_TYPE_CONVERSIONS
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE SET
VARIABLE_COMMENT Set of slave type conversions that are enabled. If the variable is empty, no conversions are allowed and it is expected that the types match exactly
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST ALL_LOSSY,ALL_NON_LOSSY
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLOW_LAUNCH_TIME
SESSION_VALUE NULL
GLOBAL_VALUE 2
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If creating the thread takes longer than this value (in seconds), the Slow_launch_threads counter will be incremented
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SLOW_QUERY_LOG
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Log slow queries to a table or log file. Defaults logging to a file 'hostname'-slow.log or a table mysql.slow_log if --log-output=TABLE is used. Must be enabled to activate other slow log options
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SLOW_QUERY_LOG_FILE
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Log slow queries to given log file. Defaults logging to 'hostname'-slow.log. Must be enabled to activate other slow log options
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SOCKET
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Socket file to use for connection
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SORT_BUFFER_SIZE
SESSION_VALUE 262144
GLOBAL_VALUE 262144
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 2097152
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Each thread that needs to do a sort allocates a buffer of this size
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SQL_AUTO_IS_NULL
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_auto_is_null
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_BIG_SELECTS
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_big_selects
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_BUFFER_RESULT
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_buffer_result
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_LOG_BIN
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Controls whether logging to the binary log is done
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_LOG_OFF
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_log_off
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_MODE
SESSION_VALUE ANSI_QUOTES
GLOBAL_VALUE NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
VARIABLE_SCOPE SESSION
VARIABLE_TYPE SET
VARIABLE_COMMENT Sets the sql mode
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,IGNORE_BAD_TABLE_OPTIONS,ONLY_FULL_GROUP_BY,NO_UNSIGNED_SUBTRACTION,NO_DIR_IN_CREATE,POSTGRESQL,ORACLE,MSSQL,DB2,MAXDB,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,MYSQL323,MYSQL40,ANSI,NO_AUTO_VALUE_ON_ZERO,NO_BACKSLASH_ESCAPES,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ALLOW_INVALID_DATES,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,HIGH_NOT_PRECEDENCE,NO_ENGINE_SUBSTITUTION,PAD_CHAR_TO_FULL_LENGTH
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SQL_NOTES
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_notes
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_QUOTE_SHOW_CREATE
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_quote_show_create
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_SAFE_UPDATES
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_safe_updates
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_SELECT_LIMIT
SESSION_VALUE 18446744073709551615
GLOBAL_VALUE 18446744073709551615
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 18446744073709551615
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The maximum number of rows to return from SELECT statements
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_SLAVE_SKIP_COUNTER
SESSION_VALUE 0
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Skip the next N events from the master log
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SQL_WARNINGS
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT sql_warnings
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SSL_CA
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT CA file in PEM format (check OpenSSL docs, implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_CAPATH
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT CA directory (check OpenSSL docs, implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_CERT
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT X509 cert in PEM format (implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_CIPHER
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT SSL cipher to use (implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_CRL
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT CRL file in PEM format (check OpenSSL docs, implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_CRLPATH
SESSION_VALUE NULL
GLOBAL_VALUE
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT CRL directory (check OpenSSL docs, implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SSL_KEY
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT X509 key in PEM format (implies --ssl)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME STORAGE_ENGINE
SESSION_VALUE MyISAM
GLOBAL_VALUE MyISAM
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE MyISAM
VARIABLE_SCOPE SESSION
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Alias for @@default_storage_engine. Deprecated
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME STORED_PROGRAM_CACHE
SESSION_VALUE NULL
GLOBAL_VALUE 256
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 256
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The soft upper limit for number of cached stored routines for one connection.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 524288
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME STRICT_PASSWORD_VALIDATION
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT When password validation plugins are enabled, reject passwords that cannot be validated (passwords specified as a hash)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SYNC_BINLOG
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Synchronously flush binary log to disk after every #th event. Use 0 (default) to disable synchronous flushing
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SYNC_FRM
SESSION_VALUE NULL
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Sync .frm files to disk on creation
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME SYNC_MASTER_INFO
SESSION_VALUE NULL
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Synchronously flush master info to disk after every #th event. Use 0 to disable synchronous flushing
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SYNC_RELAY_LOG
SESSION_VALUE NULL
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Synchronously flush relay log to disk after every #th event. Use 0 to disable synchronous flushing
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME SYNC_RELAY_LOG_INFO
SESSION_VALUE NULL
GLOBAL_VALUE 10000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Synchronously flush relay log info to disk after every #th transaction. Use 0 to disable synchronous flushing
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TABLE_DEFINITION_CACHE
SESSION_VALUE NULL
GLOBAL_VALUE 400
GLOBAL_VALUE_ORIGIN AUTO
DEFAULT_VALUE 400
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of cached table definitions
NUMERIC_MIN_VALUE 400
NUMERIC_MAX_VALUE 524288
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TABLE_OPEN_CACHE
SESSION_VALUE NULL
GLOBAL_VALUE 2000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of cached open tables
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 524288
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_CACHE_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 0
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT How many threads we should keep in a cache for reuse
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16384
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_CONCURRENCY
SESSION_VALUE NULL
GLOBAL_VALUE 10
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Permits the application to give the threads system a hint for the desired number of threads that should be run at the same time.This variable has no effect, and is deprecated. It will be removed in a future release.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 512
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_HANDLING
SESSION_VALUE NULL
GLOBAL_VALUE one-thread-per-connection
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE one-thread-per-connection
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Define threads usage for handling queries
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST one-thread-per-connection,no-threads,pool-of-threads
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_POOL_IDLE_TIMEOUT
SESSION_VALUE NULL
GLOBAL_VALUE 60
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 60
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Timeout in seconds for an idle thread in the thread pool.Worker thread will be shut down after timeout
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_POOL_MAX_THREADS
SESSION_VALUE NULL
GLOBAL_VALUE 1000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1000
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Maximum allowed number of worker threads in the thread pool
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 65536
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_POOL_OVERSUBSCRIBE
SESSION_VALUE NULL
GLOBAL_VALUE 3
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 3
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT How many additional active worker threads in a group are allowed.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_POOL_SIZE
SESSION_VALUE NULL
GLOBAL_VALUE 4
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 8
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Number of thread groups in the pool. This parameter is roughly equivalent to maximum number of concurrently executing threads (threads in a waiting state do not count as executing).
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 100000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_POOL_STALL_LIMIT
SESSION_VALUE NULL
GLOBAL_VALUE 500
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 500
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Maximum query execution time in milliseconds,before an executing non-yielding thread is considered stalled.If a worker thread is stalled, additional worker thread may be created to handle remaining clients.
NUMERIC_MIN_VALUE 10
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME THREAD_STACK
SESSION_VALUE NULL
GLOBAL_VALUE 294912
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 294912
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The stack size for each thread
NUMERIC_MIN_VALUE 131072
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TIMED_MUTEXES
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Specify whether to time mutexes. Deprecated, has no effect.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME TIMESTAMP
SESSION_VALUE 1409578823.000000
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0.000000
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE DOUBLE
VARIABLE_COMMENT Set the time for this client
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2147483647
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME TIME_FORMAT
SESSION_VALUE NULL
GLOBAL_VALUE %H:%i:%s
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE %H:%i:%s
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The TIME format (ignored)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TIME_ZONE
SESSION_VALUE +00:00
GLOBAL_VALUE SYSTEM
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE SYSTEM
VARIABLE_SCOPE SESSION
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT time_zone
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME TMPDIR
SESSION_VALUE NULL
GLOBAL_VALUE PATH
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Path for temporary files. Several paths may be specified, separated by a colon (:), in this case they are used in a round-robin fashion
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TMP_TABLE_SIZE
SESSION_VALUE 16777216
GLOBAL_VALUE 16777216
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16777216
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If an internal in-memory temporary table exceeds this size, MySQL will automatically convert it to an on-disk MyISAM or Aria table
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TRANSACTION_ALLOC_BLOCK_SIZE
SESSION_VALUE 8192
GLOBAL_VALUE 8192
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8192
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Allocation block size for transactions to be stored in binary log
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 134217728
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TRANSACTION_PREALLOC_SIZE
SESSION_VALUE 4096
GLOBAL_VALUE 4096
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 4096
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Persistent buffer for transactions to be stored in binary log
NUMERIC_MIN_VALUE 1024
NUMERIC_MAX_VALUE 134217728
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME TX_ISOLATION
SESSION_VALUE REPEATABLE-READ
GLOBAL_VALUE REPEATABLE-READ
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE REPEATABLE-READ
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Default transaction isolation level
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST READ-UNCOMMITTED,READ-COMMITTED,REPEATABLE-READ,SERIALIZABLE
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME TX_READ_ONLY
SESSION_VALUE OFF
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Set default transaction access mode to read only.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME UNIQUE_CHECKS
SESSION_VALUE ON
GLOBAL_VALUE ON
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE ON
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT unique_checks
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME UPDATABLE_VIEWS_WITH_LIMIT
SESSION_VALUE YES
GLOBAL_VALUE YES
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE YES
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT YES = Don't issue an error message (warning only) if a VIEW without presence of a key of the underlying table is used in queries with a LIMIT clause for updating. NO = Prohibit update of a VIEW, which does not contain a key of the underlying table and the query uses a LIMIT clause (usually get from GUI tools)
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NO,YES
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME USERSTAT
SESSION_VALUE NULL
GLOBAL_VALUE OFF
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE OFF
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Enables statistics gathering for USER_STATISTICS, CLIENT_STATISTICS, INDEX_STATISTICS and TABLE_STATISTICS tables in the INFORMATION_SCHEMA
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY NO
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME USE_STAT_TABLES
SESSION_VALUE NEVER
GLOBAL_VALUE NEVER
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NEVER
VARIABLE_SCOPE SESSION
VARIABLE_TYPE ENUM
VARIABLE_COMMENT Specifies how to use system statistics tables
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NEVER,COMPLEMENTARY,PREFERABLY
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME WAIT_TIMEOUT
SESSION_VALUE 28800
GLOBAL_VALUE 28800
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 28800
VARIABLE_SCOPE SESSION
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of seconds the server waits for activity on a connection before closing it
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 31536000
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME WARNING_COUNT
SESSION_VALUE 0
GLOBAL_VALUE NULL
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE NULL
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT The number of errors, warnings, and notes that resulted from the last statement that generated messages
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
select VARIABLE_NAME, VARIABLE_SCOPE, VARIABLE_TYPE, VARIABLE_COMMENT,
NUMERIC_MIN_VALUE, NUMERIC_MAX_VALUE, NUMERIC_BLOCK_SIZE,
ENUM_VALUE_LIST, READ_ONLY, COMMAND_LINE_ARGUMENT
from information_schema.system_variables
where variable_name in (
'have_openssl',
'have_symlink',
'hostname',
'large_files_support',
'lower_case_file_system',
'lower_case_table_names',
'open_files_limit',
'rand_seed1',
'rand_seed2',
'system_time_zone',
'version_comment',
'version_compile_machine', 'version_compile_os',
'version_malloc_library', 'version_ssl_library', 'version'
)
order by variable_name;
VARIABLE_NAME HAVE_OPENSSL
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_openssl
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HAVE_SYMLINK
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT have_symlink
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME HOSTNAME
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Server host name
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LARGE_FILES_SUPPORT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Whether mysqld was compiled with options for large file support
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOWER_CASE_FILE_SYSTEM
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BOOLEAN
VARIABLE_COMMENT Case sensitivity of file names on the file system where the data directory is located
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST OFF,ON
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME LOWER_CASE_TABLE_NAMES
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive. Should be set to 2 if you are using a case insensitive file system
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT OPTIONAL
VARIABLE_NAME OPEN_FILES_LIMIT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT If this is not 0, then mysqld will use this value to reserve file descriptors to use with setrlimit(). If this value is 0 then mysqld will reserve max_connections*5 or max_connections + table_cache*2 (whichever is larger) number of file descriptors
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME RAND_SEED1
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Sets the internal state of the RAND() generator for replication purposes
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME RAND_SEED2
VARIABLE_SCOPE SESSION ONLY
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Sets the internal state of the RAND() generator for replication purposes
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 18446744073709551615
NUMERIC_BLOCK_SIZE 1
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME SYSTEM_TIME_ZONE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT The server system time zone
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Server version
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION_COMMENT
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT version_comment
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION_COMPILE_MACHINE
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT version_compile_machine
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION_COMPILE_OS
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT version_compile_os
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION_MALLOC_LIBRARY
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Version of the used malloc library
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
VARIABLE_NAME VERSION_SSL_LIBRARY
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE VARCHAR
VARIABLE_COMMENT Version of the used SSL library
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
select VARIABLE_NAME, GLOBAL_VALUE_ORIGIN, VARIABLE_SCOPE, VARIABLE_TYPE,
VARIABLE_COMMENT, ENUM_VALUE_LIST, READ_ONLY, COMMAND_LINE_ARGUMENT
from information_schema.system_variables
where variable_name in (
'log_tc_size'
)
order by variable_name;
VARIABLE_NAME LOG_TC_SIZE
GLOBAL_VALUE_ORIGIN AUTO
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Size of transaction coordinator log.
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
set global div_precision_increment=default;
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