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MDEV-12459 post-review fixes

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* IS_USER_TEMP_TABLE() was misleading, name didn't match the code
* list of temp tables was rescanned number_of_databases times
* some temporary tables were not shown (from nonexistent databases)
* some temporary tables were shown more than once (e.g. after self-joins)
* sys.table_exists() - avoid querying I_S twice
* fix handling of temporary MERGE tables - it's pointless to fully open
  them, they're not in thd->temporary_tables, so they simply fail to
  open and are skipped. Relax the assertion instead.
This commit is contained in:
Sergei Golubchik
2023-06-17 13:17:18 +02:00
parent 1fb4828b28
commit 62decb5e8b
8 changed files with 119 additions and 105 deletions
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2
mysql-test/suite/engines/funcs/r/rpl_row_drop.result
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@@ -6,6 +6,7 @@ CREATE TABLE t2 (a int);
CREATE TEMPORARY TABLE t2 (a int, b int);
SHOW TABLES;
Tables_in_test
t2
t1
t2
connection slave;
@@ -28,6 +29,7 @@ connection master;
CREATE TEMPORARY TABLE t2 (a int, b int);
SHOW TABLES;
Tables_in_test
t2
t1
t2
connection slave;