diff options
Diffstat (limited to 'sql/sql_alter.h')
| -rw-r--r-- | sql/sql_alter.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/sql/sql_alter.h b/sql/sql_alter.h index 10aafe1ab37..53d0c8438f8 100644 --- a/sql/sql_alter.h +++ b/sql/sql_alter.h @@ -57,7 +57,10 @@ public: ALTER_TABLE_ALGORITHM_NOCOPY, // Instant should allow any operation that changes metadata only. - ALTER_TABLE_ALGORITHM_INSTANT + ALTER_TABLE_ALGORITHM_INSTANT, + + // When there is no specification of algorithm during alter table. + ALTER_TABLE_ALGORITHM_NONE }; @@ -104,8 +107,11 @@ public: List<const char> partition_names; // Number of partitions. uint num_parts; +private: // Type of ALTER TABLE algorithm. enum_alter_table_algorithm requested_algorithm; + +public: // Type of ALTER TABLE lock. enum_alter_table_lock requested_lock; @@ -114,7 +120,7 @@ public: flags(0), partition_flags(0), keys_onoff(LEAVE_AS_IS), num_parts(0), - requested_algorithm(ALTER_TABLE_ALGORITHM_DEFAULT), + requested_algorithm(ALTER_TABLE_ALGORITHM_NONE), requested_lock(ALTER_TABLE_LOCK_DEFAULT) {} @@ -130,7 +136,7 @@ public: keys_onoff= LEAVE_AS_IS; num_parts= 0; partition_names.empty(); - requested_algorithm= ALTER_TABLE_ALGORITHM_DEFAULT; + requested_algorithm= ALTER_TABLE_ALGORITHM_NONE; requested_lock= ALTER_TABLE_LOCK_DEFAULT; } @@ -178,9 +184,15 @@ public: bool set_requested_lock(const LEX_CSTRING *str); /** + Set the requested algorithm to the given algorithm value + @param algo_value algorithm to be set + */ + void set_requested_algorithm(enum_alter_table_algorithm algo_value); + + /** Returns the algorithm value in the format "algorithm=value" */ - const char* algorithm() const; + const char* algorithm_clause(THD *thd) const; /** Returns the lock value in the format "lock=value" @@ -216,6 +228,12 @@ public: bool supports_lock(THD *thd, enum_alter_inplace_result result, const Alter_inplace_info *ha_alter_info); + /** + Return user requested algorithm. If user does not specify + algorithm then return alter_algorithm variable value. + */ + enum_alter_table_algorithm algorithm(const THD *thd) const; + private: Alter_info &operator=(const Alter_info &rhs); // not implemented Alter_info(const Alter_info &rhs); // not implemented |