diff options
Diffstat (limited to 'sql/sql_class.h')
| -rw-r--r-- | sql/sql_class.h | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/sql/sql_class.h b/sql/sql_class.h index e2786356ac1..284a9d9e42e 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -2062,13 +2062,6 @@ public: */ ha_rows examined_row_count; - /* - The set of those tables whose fields are referenced in all subqueries - of the query. - TODO: possibly this it is incorrect to have used tables in THD because - with more than one subquery, it is not clear what does the field mean. - */ - table_map used_tables; USER_CONN *user_connect; CHARSET_INFO *db_charset; Warning_info *warning_info; @@ -2955,7 +2948,19 @@ public: { DBUG_ASSERT(locked_tables_mode == LTM_NONE); - mdl_context.set_explicit_duration_for_all_locks(); + if (mode_arg == LTM_LOCK_TABLES) + { + /* + When entering LOCK TABLES mode we should set explicit duration + for all metadata locks acquired so far in order to avoid releasing + them till UNLOCK TABLES statement. + We don't do this when entering prelocked mode since sub-statements + don't release metadata locks and restoring status-quo after leaving + prelocking mode gets complicated. + */ + mdl_context.set_explicit_duration_for_all_locks(); + } + locked_tables_mode= mode_arg; } void leave_locked_tables_mode(); @@ -4036,14 +4041,6 @@ void add_diff_to_status(STATUS_VAR *to_var, STATUS_VAR *from_var, STATUS_VAR *dec_var); void mark_transaction_to_rollback(THD *thd, bool all); -/* - This prototype is placed here instead of in item_func.h because it - depends on the definition of enum_sql_command, which is in this - file. - */ -int get_var_with_binlog(THD *thd, enum_sql_command sql_command, - LEX_STRING &name, user_var_entry **out_entry); - /* Inline functions */ inline bool add_item_to_list(THD *thd, Item *item) |