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Removed redundant SE lock for tmp tables

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CREATE TEMPORARY TABLE locks SE plugin 6 times. 5 of these locks are
released by the end of the statement. And only 1 acquired by
init_from_binary_frm_image() / plugin_lock() remains.

The lock removed in this patch was clearly redundant.

Part of MDEV-17805 - Remove InnoDB cache for temporary tables.
This commit is contained in:
Sergey Vojtovich
2019-02-06 11:41:36 +04:00
parent 3638636f9b
commit 1dac55cf0e
5 changed files with 45 additions and 21 deletions
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5
sql/sql_class.h
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@ -4738,8 +4738,7 @@ public:
};
bool has_thd_temporary_tables();
TABLE *create_and_open_tmp_table(handlerton *hton,
LEX_CUSTRING *frm,
TABLE *create_and_open_tmp_table(LEX_CUSTRING *frm,
const char *path,
const char *db,
const char *table_name,
@ -4780,7 +4779,7 @@ private:
bool has_temporary_tables();
uint create_tmp_table_def_key(char *key, const char *db,
const char *table_name);
TMP_TABLE_SHARE *create_temporary_table(handlerton *hton, LEX_CUSTRING *frm,
TMP_TABLE_SHARE *create_temporary_table(LEX_CUSTRING *frm,
const char *path, const char *db,
const char *table_name);
TABLE *find_temporary_table(const char *key, uint key_length,