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MDEV-31618: Server crashes in process_i_s_table_temporary_tables/get_all_tables

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- Pre-open temporary table on sequence creation.
- Without this patch, if rename alter is done on the temporary sequence,
  and after that `create replace`, since table is not preopened and
  alter rename marked the table as reopen, and such table is deleted in
  the `find_temporary_table()` leaving the share without the table, that
  causes `show tables` to fail
- Closes PR #2685
- Reviewer: <serg@mariadb.com>
This commit is contained in:
Anel Husakovic
2023-07-19 13:48:53 +02:00
committed by Sergei Golubchik
parent 62decb5e8b
commit 82d9d72fb1
4 changed files with 61 additions and 2 deletions
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35
mysql-test/main/information_schema_temp_table.result
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@ -231,3 +231,38 @@ def test t1 BASE TABLE MyISAM 10 Fixed 1 7 X X X X NULL X X NULL latin1_swedish_
def test t2 TEMPORARY MRG_MyISAM 10 Fixed 0 0 X X X X NULL X X NULL latin1_swedish_ci NULL X Y
def test t3 BASE TABLE MRG_MyISAM 10 Fixed 1 5 X X X X NULL X X NULL latin1_swedish_ci NULL X N
DROP TABLE t1,t2,t3;
#
# MDEV-31618: Server crashes in
# process_i_s_table_temporary_tables/get_all_tables
#
CREATE TEMPORARY SEQUENCE seq1;
SHOW FULL TABLES;
Tables_in_test Table_type
seq1 TEMPORARY SEQUENCE
SELECT table_schema, table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_type='temporary sequence';
table_schema table_name
test seq1
mysqltest s2
mysqltest s1
ALTER TABLE `seq1` CHANGE `cache_size` cache_size int;
ERROR HY000: Sequence 'test.seq1' table structure is invalid (cache_size)
SHOW FULL TABLES;
Tables_in_test Table_type
seq1 TEMPORARY SEQUENCE
SELECT table_schema, table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_type='temporary sequence';
table_schema table_name
test seq1
mysqltest s2
mysqltest s1
CREATE OR REPLACE TEMPORARY SEQUENCE seq1;
SHOW FULL TABLES;
Tables_in_test Table_type
seq1 TEMPORARY SEQUENCE
SELECT table_schema, table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_type='temporary sequence';
table_schema table_name
test seq1
mysqltest s2
mysqltest s1
DROP TABLE seq1;
DROP TABLE mysqltest.s1;
DROP TABLE mysqltest.s2;