diff options
Diffstat (limited to 'sql/mysql_priv.h')
| -rw-r--r-- | sql/mysql_priv.h | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h index 08607fd41fc..d919eddfffe 100644 --- a/sql/mysql_priv.h +++ b/sql/mysql_priv.h @@ -645,17 +645,42 @@ protected: #define MY_CHARSET_BIN_MB_MAXLEN 1 +/* + Flags below are set when we perform + context analysis of the statement and make + subqueries non-const. It prevents subquery + evaluation at context analysis stage. +*/ + +/* + Don't evaluate this subquery during statement prepare even if + it's a constant one. The flag is switched off in the end of + mysqld_stmt_prepare. +*/ +#define CONTEXT_ANALYSIS_ONLY_PREPARE 1 +/* + Special JOIN::prepare mode: changing of query is prohibited. + When creating a view, we need to just check its syntax omitting + any optimizations: afterwards definition of the view will be + reconstructed by means of ::print() methods and written to + to an .frm file. We need this definition to stay untouched. +*/ +#define CONTEXT_ANALYSIS_ONLY_VIEW 2 +/* + Don't evaluate this subquery during derived table prepare even if + it's a constant one. +*/ +#define CONTEXT_ANALYSIS_ONLY_DERIVED 4 + // uncachable cause #define UNCACHEABLE_DEPENDENT 1 #define UNCACHEABLE_RAND 2 #define UNCACHEABLE_SIDEEFFECT 4 /// forcing to save JOIN for explain #define UNCACHEABLE_EXPLAIN 8 -/** Don't evaluate subqueries in prepare even if they're not correlated */ -#define UNCACHEABLE_PREPARE 16 /* For uncorrelated SELECT in an UNION with some correlated SELECTs */ -#define UNCACHEABLE_UNITED 32 -#define UNCACHEABLE_CHECKOPTION 64 +#define UNCACHEABLE_UNITED 16 +#define UNCACHEABLE_CHECKOPTION 32 /* Used to check GROUP BY list in the MODE_ONLY_FULL_GROUP_BY mode */ #define UNDEF_POS (-1) @@ -1156,7 +1181,7 @@ uint cached_table_definitions(void); void kill_mysql(void); void close_connection(THD *thd, uint errcode, bool lock); bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables, - bool *write_to_binlog); + int *write_to_binlog); #ifndef NO_EMBEDDED_ACCESS_CHECKS bool check_access(THD *thd, ulong access, const char *db, ulong *save_priv, bool no_grant, bool no_errors, bool schema_db); |