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| author | bell@sanja.is.com.ua <> | 2003-04-16 20:35:29 +0300 |
|---|---|---|
| committer | bell@sanja.is.com.ua <> | 2003-04-16 20:35:29 +0300 |
| commit | 5ea922aab02156d6755297628f7458f2629a1785 (patch) | |
| tree | e3388f92b12d4fbdfc30361d0fcde4c8f490ff05 /sql/handler.h | |
| parent | 03f3b340581b4f438a10f21d4dd08369ab69ff9a (diff) | |
| parent | 1de8a5996f4b0d89eea2dae6e93046018e963dc3 (diff) | |
| download | mariadb-git-5ea922aab02156d6755297628f7458f2629a1785.tar.gz | |
merging
Diffstat (limited to 'sql/handler.h')
| -rw-r--r-- | sql/handler.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sql/handler.h b/sql/handler.h index c6a4578a26c..557fec0de0e 100644 --- a/sql/handler.h +++ b/sql/handler.h @@ -116,6 +116,11 @@ #define HA_OPTION_NO_DELAY_KEY_WRITE (1L << 18) #define HA_MAX_REC_LENGTH 65535 +/* Table caching type */ +#define HA_CACHE_TBL_NONTRANSACT 0 +#define HA_CACHE_TBL_ASKTRANSACT 1 +#define HA_CACHE_TBL_TRANSACT 2 + enum db_type { DB_TYPE_UNKNOWN=0,DB_TYPE_DIAB_ISAM=1, DB_TYPE_HASH,DB_TYPE_MISAM,DB_TYPE_PISAM, DB_TYPE_RMS_ISAM, DB_TYPE_HEAP, DB_TYPE_ISAM, @@ -342,6 +347,16 @@ public: virtual THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to, enum thr_lock_type lock_type)=0; + + /* Type of table for caching query */ + virtual uint8 table_cache_type() { return HA_CACHE_TBL_NONTRANSACT; } + /* + Is query with this cable cachable (have sense only for ASKTRANSACT + tables) + */ + static bool caching_allowed(THD* thd, char* table_key, + uint key_length, uint8 cahe_type); + }; /* Some extern variables used with handlers */ |