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Split tdc_remove_table()

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TDC_RT_REMOVE_ALL -> tdc_remove_table(). Some occurrences replaced with
TDC_element::flush() (whenver TABLE_SHARE is available).

TDC_RT_REMOVE_NOT_OWN[_KEEP_SHARE] -> TDC_element::flush(). These modes
assume that current thread owns TABLE_SHARE reference, which means we can
avoid hash lookup and flush unused TABLE instances directly.

TDC_RT_REMOVE_UNUSED -> TDC_element::flush_unused(). Only [ab]used by
mysql_admin_table() currently. Should be removed eventually.

Part of MDEV-17882 - Cleanup refresh version
This commit is contained in:
Sergey Vojtovich
2019-12-17 16:25:15 +04:00
parent 06fae75859
commit 7a947614fb
12 changed files with 127 additions and 144 deletions
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3
sql/sql_truncate.cc
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@ -375,8 +375,7 @@ bool Sql_cmd_truncate_table::lock_table(THD *thd, TABLE_LIST *table_ref,
else
{
/* Table is already locked exclusively. Remove cached instances. */
tdc_remove_table(thd, TDC_RT_REMOVE_ALL, table_ref->db.str,
table_ref->table_name.str);
tdc_remove_table(thd, table_ref->db.str, table_ref->table_name.str);
}
DBUG_RETURN(FALSE);