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optimize discovery for cases when the storage engine is known in advance

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This commit is contained in:
Sergei Golubchik
2013-04-09 16:20:48 +02:00
parent 3a8e1a2205
commit 050d7d6d75
7 changed files with 30 additions and 17 deletions
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6
sql/sql_base.cc
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@ -5908,6 +5908,8 @@ void close_tables_for_reopen(THD *thd, TABLE_LIST **tables,
the opened TABLE instance will be addded to THD::temporary_tables list.
@param thd Thread context.
@param hton Storage engine of the table, if known,
or NULL otherwise.
@param path Path (without .frm)
@param db Database name.
@param table_name Table name.
@ -5923,7 +5925,8 @@ void close_tables_for_reopen(THD *thd, TABLE_LIST **tables,
@retval NULL on error.
*/
TABLE *open_table_uncached(THD *thd, const char *path, const char *db,
TABLE *open_table_uncached(THD *thd, handlerton *hton,
const char *path, const char *db,
const char *table_name,
bool add_to_temporary_tables_list)
{
@ -5953,6 +5956,7 @@ TABLE *open_table_uncached(THD *thd, const char *path, const char *db,
init_tmp_table_share(thd, share, saved_cache_key, key_length,
strend(saved_cache_key)+1, tmp_path);
share->db_plugin= ha_lock_engine(thd, hton);
if (open_table_def(thd, share, GTS_TABLE | GTS_FORCE_DISCOVERY) ||
open_table_from_share(thd, share, table_name,