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| author | unknown <sergefp@mysql.com> | 2005-09-21 02:18:29 +0400 |
|---|---|---|
| committer | unknown <sergefp@mysql.com> | 2005-09-21 02:18:29 +0400 |
| commit | a2a8216b2061de4cf0c417362aa9436787cca3cb (patch) | |
| tree | cfdbd7cf52b7834c855c3a89be4c09b7a5ff229f /include/myisam.h | |
| parent | 1ac26b4a6cfd5cf72b39e4fda31d2bb114463ad8 (diff) | |
| download | mariadb-git-a2a8216b2061de4cf0c417362aa9436787cca3cb.tar.gz | |
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index
statistics (like 4.0 did) (patch #3, with review #1 & #2 feedback addressed)
include/myisam.h:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
myisam/mi_check.c:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
myisam/myisamchk.c:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
mysql-test/r/myisam.result:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
mysql-test/t/myisam.test:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
sql/ha_myisam.cc:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
sql/handler.h:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
sql/mysqld.cc:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
sql/set_var.cc:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
sql/sql_class.h:
BUG#12232: Add a server option to treat NULL values as equal when calculating MyISAM index statistics
Diffstat (limited to 'include/myisam.h')
| -rw-r--r-- | include/myisam.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/myisam.h b/include/myisam.h index 6d097770646..e276d4efdff 100644 --- a/include/myisam.h +++ b/include/myisam.h @@ -311,6 +311,20 @@ typedef struct st_sort_key_blocks /* Used when sorting */ } SORT_KEY_BLOCKS; +/* + MyISAM supports several statistics collection methods. Currently statistics + collection method is not stored in MyISAM file and has to be specified for + each table analyze/repair operation in MI_CHECK::stats_method. +*/ + +typedef enum +{ + /* Treat NULLs as inequal when collecting statistics (default for 4.1/5.0) */ + MI_STATS_METHOD_NULLS_NOT_EQUAL, + /* Treat NULLs as equal when collecting statistics (like 4.0 did) */ + MI_STATS_METHOD_NULLS_EQUAL +} enum_mi_stats_method; + typedef struct st_mi_check_param { ulonglong auto_increment_value; @@ -341,6 +355,7 @@ typedef struct st_mi_check_param void *thd; char *db_name,*table_name; char *op_name; + enum_mi_stats_method stats_method; } MI_CHECK; typedef struct st_sort_ft_buf |