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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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96
mysql-test/suite/funcs_1/r/is_columns.result
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@@ -28,14 +28,14 @@ DROP FUNCTION test.f1;
#########################################################################
DESCRIBE information_schema.COLUMNS;
Field Type Null Key Default Extra
TABLE_CATALOG varchar(512) NO
TABLE_SCHEMA varchar(64) NO
TABLE_NAME varchar(64) NO
COLUMN_NAME varchar(64) NO
ORDINAL_POSITION bigint(21) unsigned NO 0
TABLE_CATALOG varchar(512) NO NULL
TABLE_SCHEMA varchar(64) NO NULL
TABLE_NAME varchar(64) NO NULL
COLUMN_NAME varchar(64) NO NULL
ORDINAL_POSITION bigint(21) unsigned NO NULL
COLUMN_DEFAULT longtext YES NULL
IS_NULLABLE varchar(3) NO
DATA_TYPE varchar(64) NO
IS_NULLABLE varchar(3) NO NULL
DATA_TYPE varchar(64) NO NULL
CHARACTER_MAXIMUM_LENGTH bigint(21) unsigned YES NULL
CHARACTER_OCTET_LENGTH bigint(21) unsigned YES NULL
NUMERIC_PRECISION bigint(21) unsigned YES NULL
@@ -43,49 +43,49 @@ NUMERIC_SCALE bigint(21) unsigned YES NULL
DATETIME_PRECISION bigint(21) unsigned YES NULL
CHARACTER_SET_NAME varchar(32) YES NULL
COLLATION_NAME varchar(32) YES NULL
COLUMN_TYPE longtext NO
COLUMN_KEY varchar(3) NO
EXTRA varchar(30) NO
PRIVILEGES varchar(80) NO
COLUMN_COMMENT varchar(1024) NO
IS_GENERATED varchar(6) NO
COLUMN_TYPE longtext NO NULL
COLUMN_KEY varchar(3) NO NULL
EXTRA varchar(30) NO NULL
PRIVILEGES varchar(80) NO NULL
COLUMN_COMMENT varchar(1024) NO NULL
IS_GENERATED varchar(6) NO NULL
GENERATION_EXPRESSION longtext YES NULL
SHOW CREATE TABLE information_schema.COLUMNS;
Table Create Table
COLUMNS CREATE TEMPORARY TABLE `COLUMNS` (
`TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '',
`TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '',
`TABLE_NAME` varchar(64) NOT NULL DEFAULT '',
`COLUMN_NAME` varchar(64) NOT NULL DEFAULT '',
`ORDINAL_POSITION` bigint(21) unsigned NOT NULL DEFAULT 0,
`COLUMN_DEFAULT` longtext DEFAULT NULL,
`IS_NULLABLE` varchar(3) NOT NULL DEFAULT '',
`DATA_TYPE` varchar(64) NOT NULL DEFAULT '',
`CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned DEFAULT NULL,
`CHARACTER_OCTET_LENGTH` bigint(21) unsigned DEFAULT NULL,
`NUMERIC_PRECISION` bigint(21) unsigned DEFAULT NULL,
`NUMERIC_SCALE` bigint(21) unsigned DEFAULT NULL,
`DATETIME_PRECISION` bigint(21) unsigned DEFAULT NULL,
`CHARACTER_SET_NAME` varchar(32) DEFAULT NULL,
`COLLATION_NAME` varchar(32) DEFAULT NULL,
`COLUMN_TYPE` longtext NOT NULL DEFAULT '',
`COLUMN_KEY` varchar(3) NOT NULL DEFAULT '',
`EXTRA` varchar(30) NOT NULL DEFAULT '',
`PRIVILEGES` varchar(80) NOT NULL DEFAULT '',
`COLUMN_COMMENT` varchar(1024) NOT NULL DEFAULT '',
`IS_GENERATED` varchar(6) NOT NULL DEFAULT '',
`GENERATION_EXPRESSION` longtext DEFAULT NULL
`TABLE_CATALOG` varchar(512) NOT NULL,
`TABLE_SCHEMA` varchar(64) NOT NULL,
`TABLE_NAME` varchar(64) NOT NULL,
`COLUMN_NAME` varchar(64) NOT NULL,
`ORDINAL_POSITION` bigint(21) unsigned NOT NULL,
`COLUMN_DEFAULT` longtext,
`IS_NULLABLE` varchar(3) NOT NULL,
`DATA_TYPE` varchar(64) NOT NULL,
`CHARACTER_MAXIMUM_LENGTH` bigint(21) unsigned,
`CHARACTER_OCTET_LENGTH` bigint(21) unsigned,
`NUMERIC_PRECISION` bigint(21) unsigned,
`NUMERIC_SCALE` bigint(21) unsigned,
`DATETIME_PRECISION` bigint(21) unsigned,
`CHARACTER_SET_NAME` varchar(32),
`COLLATION_NAME` varchar(32),
`COLUMN_TYPE` longtext NOT NULL,
`COLUMN_KEY` varchar(3) NOT NULL,
`EXTRA` varchar(30) NOT NULL,
`PRIVILEGES` varchar(80) NOT NULL,
`COLUMN_COMMENT` varchar(1024) NOT NULL,
`IS_GENERATED` varchar(6) NOT NULL,
`GENERATION_EXPRESSION` longtext
) DEFAULT CHARSET=utf8
SHOW COLUMNS FROM information_schema.COLUMNS;
Field Type Null Key Default Extra
TABLE_CATALOG varchar(512) NO
TABLE_SCHEMA varchar(64) NO
TABLE_NAME varchar(64) NO
COLUMN_NAME varchar(64) NO
ORDINAL_POSITION bigint(21) unsigned NO 0
TABLE_CATALOG varchar(512) NO NULL
TABLE_SCHEMA varchar(64) NO NULL
TABLE_NAME varchar(64) NO NULL
COLUMN_NAME varchar(64) NO NULL
ORDINAL_POSITION bigint(21) unsigned NO NULL
COLUMN_DEFAULT longtext YES NULL
IS_NULLABLE varchar(3) NO
DATA_TYPE varchar(64) NO
IS_NULLABLE varchar(3) NO NULL
DATA_TYPE varchar(64) NO NULL
CHARACTER_MAXIMUM_LENGTH bigint(21) unsigned YES NULL
CHARACTER_OCTET_LENGTH bigint(21) unsigned YES NULL
NUMERIC_PRECISION bigint(21) unsigned YES NULL
@@ -93,12 +93,12 @@ NUMERIC_SCALE bigint(21) unsigned YES NULL
DATETIME_PRECISION bigint(21) unsigned YES NULL
CHARACTER_SET_NAME varchar(32) YES NULL
COLLATION_NAME varchar(32) YES NULL
COLUMN_TYPE longtext NO
COLUMN_KEY varchar(3) NO
EXTRA varchar(30) NO
PRIVILEGES varchar(80) NO
COLUMN_COMMENT varchar(1024) NO
IS_GENERATED varchar(6) NO
COLUMN_TYPE longtext NO NULL
COLUMN_KEY varchar(3) NO NULL
EXTRA varchar(30) NO NULL
PRIVILEGES varchar(80) NO NULL
COLUMN_COMMENT varchar(1024) NO NULL
IS_GENERATED varchar(6) NO NULL
GENERATION_EXPRESSION longtext YES NULL
SELECT table_catalog, table_schema, table_name, column_name
FROM information_schema.columns WHERE table_catalog IS NULL OR table_catalog <> 'def';