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MDEV-18918 SQL mode EMPTY_STRING_IS_NULL breaks RBR upon CREATE TABLE .. SELECT

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The 10.5 version of the patch.

Removing DEFAULT from INFORMATION_SCHEMA columns.
DEFAULT in read-only tables is rather meaningless.
Upgrade should go smoothly.

Also fixes:
 MDEV-20254 Problems with EMPTY_STRING_IS_NULL and I_S tables
This commit is contained in:
Alexander Barkov
2021-12-28 17:43:40 +04:00
parent e4b302e436
commit 62e320c86d
82 changed files with 2374 additions and 2319 deletions
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33
mysql-test/main/information_schema.test
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@ -2071,6 +2071,39 @@ create table t1 ( name varchar(64) character set utf8, len int);
select * from t1 where (name, len) in (select name, len from information_schema.innodb_sys_columns having len = 8);
drop table t1;
--echo #
--echo # MDEV-20254 Problems with EMPTY_STRING_IS_NULL and I_S tables
--echo #
# Test one column with detailed output
SET SQL_MODE= 'EMPTY_STRING_IS_NULL';
CREATE OR REPLACE TABLE t1 AS SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE 1 = 0;
--let $myvar= query_get_value(SHOW CREATE TABLE test.t1, Create Table, 1)
--echo SHOW returned: $myvar
DROP TABLE t1;
--eval $myvar
SHOW CREATE TABLE t1;
DROP TABLE t1;
SET SQL_MODE=DEFAULT;
# Test all columns without detailed output.
# Just make sure the SHOW CREATE TABLE result
# can be passed back to the server without errors.
SET SQL_MODE= 'EMPTY_STRING_IS_NULL';
CREATE OR REPLACE TABLE t1 AS SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE 1 = 0;
--let $myvar= query_get_value(SHOW CREATE TABLE test.t1, Create Table, 1)
DROP TABLE t1;
--disable_query_log
--echo # Executing the statement returned from SHOW CREATE TABLE
--eval $myvar
--enable_query_log
DROP TABLE t1;
SET SQL_MODE=DEFAULT;
--echo #
--echo # End of 10.3 tests
--echo #