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MDEV-4260 Don't create frm files for temporary tables

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* Don't write frm for tmp tables
* pass frm image down to open_table_uncached, when possible
* don't use truncate-by-recreate for temp tables - cannot recreate
  without frm, and delete_all_rows is faster anyway
This commit is contained in:
Sergei Golubchik
2014-06-20 11:34:24 +02:00
parent cc5b3998b6
commit ce6a63ec41
7 changed files with 55 additions and 75 deletions
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3
sql/sql_base.h
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@ -127,7 +127,8 @@ bool open_new_frm(THD *thd, TABLE_SHARE *share, const char *alias,
bool get_key_map_from_key_list(key_map *map, TABLE *table,
List<String> *index_list);
TABLE *open_table_uncached(THD *thd, handlerton *hton, const char *path,
TABLE *open_table_uncached(THD *thd, handlerton *hton,
LEX_CUSTRING *frm, const char *path,
const char *db, const char *table_name,
bool add_to_temporary_tables_list,
bool open_in_engine);