# Show all hidden columns, so that we can inspect that the column
# is created with the correct character set/collation, length, data type
# etc.
CREATE TABLE t1 (
str_col VARCHAR(255),
dbl_col DOUBLE,
decimal_col DECIMAL(5, 2),
date_col DATE,
time_col TIME,
time_with_fractions_col TIME(6),
datetime_col DATETIME,
datetime_with_fractions_col DATETIME(6),
json_col JSON,
dbl_with_length DOUBLE(4, 2),
unsigned_int INT UNSIGNED,
geometry_col POINT,
INDEX idx1 ((CONVERT(SUBSTRING(str_col, 2, 1) USING latin1))),
INDEX idx2 ((ABS(dbl_col))),
INDEX idx3 ((TRUNCATE(decimal_col, 0))),
INDEX idx4 ((YEAR(date_col))),
INDEX idx5 ((ADDTIME('01:00:00', time_col))),
INDEX idx6 ((ADDTIME('01:00:00', time_with_fractions_col))),
INDEX idx7 ((DATE_SUB(datetime_col, INTERVAL 30 DAY))),
INDEX idx8 ((DATE_SUB(datetime_with_fractions_col, INTERVAL 30 DAY))),
INDEX idx9 ((JSON_VALID(json_col))),
INDEX idx10 ((ROUND(dbl_col, 2))),
INDEX idx11 ((dbl_with_length * 2.0)),
INDEX idx12 ((ABS(unsigned_int))),
INDEX idx13 ((ST_X(geometry_col)))
);
Warnings:
Warning	1681	Specifying number of digits for floating point data types is deprecated and will be removed in a future release.
SET SESSION debug="+d,show_hidden_columns";
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `str_col` varchar(255) DEFAULT NULL,
  `dbl_col` double DEFAULT NULL,
  `decimal_col` decimal(5,2) DEFAULT NULL,
  `date_col` date DEFAULT NULL,
  `time_col` time DEFAULT NULL,
  `time_with_fractions_col` time(6) DEFAULT NULL,
  `datetime_col` datetime DEFAULT NULL,
  `datetime_with_fractions_col` datetime(6) DEFAULT NULL,
  `json_col` json DEFAULT NULL,
  `dbl_with_length` double(4,2) DEFAULT NULL,
  `unsigned_int` int(10) unsigned DEFAULT NULL,
  `geometry_col` point DEFAULT NULL,
  `0be1882145c73aec7ed86aec997ee2c0` double(22,2) GENERATED ALWAYS AS ((`dbl_with_length` * 2.0)) VIRTUAL,
  `0bff7277c29f08fcb414d1f41621b86f` decimal(3,0) GENERATED ALWAYS AS (truncate(`decimal_col`,0)) VIRTUAL,
  `2c22eb88800f17d0db6d0dd3fa970987` double GENERATED ALWAYS AS (st_x(`geometry_col`)) VIRTUAL,
  `45197ac678c1210c4a64bf22351853e7` varchar(1) CHARACTER SET latin1 GENERATED ALWAYS AS (convert(substr(`str_col`,2,1) using latin1)) VIRTUAL,
  `4ee8f0f5ed62f4898e0e21c8e2595351` bigint(21) GENERATED ALWAYS AS (json_valid(`json_col`)) VIRTUAL,
  `5067d63164981f78735a1cbdb19ef208` double GENERATED ALWAYS AS (abs(`dbl_col`)) VIRTUAL,
  `88ad1ce75f21f5ed3c66937d772979b5` int(5) GENERATED ALWAYS AS (year(`date_col`)) VIRTUAL,
  `97815b7254f7ac7c263d6d590116c8de` varchar(29) GENERATED ALWAYS AS (addtime(_utf8mb4'01:00:00',`time_with_fractions_col`)) VIRTUAL,
  `9d4481df7b182f78b99e08a25930c91f` varchar(29) GENERATED ALWAYS AS (addtime(_utf8mb4'01:00:00',`time_col`)) VIRTUAL,
  `a5848dfab7c8461e1d6bb033aa7afb7e` int(10) unsigned GENERATED ALWAYS AS (abs(`unsigned_int`)) VIRTUAL,
  `b6c099c314e9ecbf27e3385f0ea88fa3` datetime(6) GENERATED ALWAYS AS ((`datetime_with_fractions_col` - interval 30 day)) VIRTUAL,
  `bf3e30b3724d85afb72714cc5e9d35a7` double(22,2) GENERATED ALWAYS AS (round(`dbl_col`,2)) VIRTUAL,
  `c1c817beeba8f7f70efb7dd56df758b0` datetime GENERATED ALWAYS AS ((`datetime_col` - interval 30 day)) VIRTUAL,
  KEY `idx1` ((convert(substr(`str_col`,2,1) using latin1))),
  KEY `idx2` ((abs(`dbl_col`))),
  KEY `idx3` ((truncate(`decimal_col`,0))),
  KEY `idx4` ((year(`date_col`))),
  KEY `idx5` ((addtime(_utf8mb4'01:00:00',`time_col`))),
  KEY `idx6` ((addtime(_utf8mb4'01:00:00',`time_with_fractions_col`))),
  KEY `idx7` (((`datetime_col` - interval 30 day))),
  KEY `idx8` (((`datetime_with_fractions_col` - interval 30 day))),
  KEY `idx9` ((json_valid(`json_col`))),
  KEY `idx10` ((round(`dbl_col`,2))),
  KEY `idx11` (((`dbl_with_length` * 2.0))),
  KEY `idx12` ((abs(`unsigned_int`))),
  KEY `idx13` ((st_x(`geometry_col`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
DROP TABLE t1;
# Check that the hidden generated column is renamed if the functional
# index is renamed.
CREATE TABLE t1 (col1 INT, INDEX my_index((FLOOR(col1))));
SET SESSION debug="+d,show_hidden_columns";
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `607d81614fbad46c00e1b881fef889f5` bigint(13) GENERATED ALWAYS AS (floor(`col1`)) VIRTUAL,
  KEY `my_index` ((floor(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
ALTER TABLE t1 RENAME INDEX my_index TO foobar;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `1f9c2f0af40893b27d4e43cfbd38d0ac` bigint(13) GENERATED ALWAYS AS (floor(`col1`)) VIRTUAL,
  KEY `foobar` ((floor(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
DROP TABLE t1;
# Check that the hidden generated columns are removed if a functional
# index is deleted.
SET SESSION debug="+d,show_hidden_columns";
CREATE TABLE t1 (
col1 INT
, col2 INT
, INDEX idx1 ((ABS(col1)))
, INDEX idx2 ((col1 + 1), (col2 + 2)));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `col2` int(11) DEFAULT NULL,
  `1a0b00fb7838a59dd0c459201c53de8b` bigint(12) GENERATED ALWAYS AS ((`col2` + 2)) VIRTUAL,
  `45197ac678c1210c4a64bf22351853e7` int(11) GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
  `5067d63164981f78735a1cbdb19ef208` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  KEY `idx1` ((abs(`col1`))),
  KEY `idx2` (((`col1` + 1)),((`col2` + 2)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
ALTER TABLE t1 DROP INDEX idx2;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `col2` int(11) DEFAULT NULL,
  `45197ac678c1210c4a64bf22351853e7` int(11) GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
  KEY `idx1` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
SET SESSION debug="-d,show_hidden_columns";
SET SESSION debug="+d,show_hidden_columns";
CREATE TABLE t1(j json, INDEX mv_idx((CAST(j AS UNSIGNED ARRAY))));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `j` json DEFAULT NULL,
  `680963a1f6dcb151c3e713b46b4c3452` bigint array GENERATED ALWAYS AS (cast(`j` as unsigned array)) VIRTUAL,
  KEY `mv_idx` ((cast(`j` as unsigned array)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT 680963a1f6dcb151c3e713b46b4c3452 FROM t1 ;
680963a1f6dcb151c3e713b46b4c3452
EXPLAIN SELECT 680963a1f6dcb151c3e713b46b4c3452 FROM t1 ;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	1	100.00	NULL
Warnings:
Note	1003	/* select#1 */ select cast(`test`.`t1`.`j` as unsigned array) AS `680963a1f6dcb151c3e713b46b4c3452` from `test`.`t1`
SET SESSION debug="-d,show_hidden_columns";
DROP TABLE t1;
#
# Bug#28037195 ASSERTION `FALSE' IN IN
#              ITEM_FIELD::REPLACE_FIELD_PROCESSOR AT SQL_TABLE.CC:5850
#
CREATE TABLE t2 (c1 INT);
CREATE INDEX name_collision ON t2((ABS(cq)));
ERROR 42S22: Unknown column 'cq' in 'functional index'
DROP TABLE t2;
#
# Bug#28069679 WL#1075 ASSERTION `!M_EXPRESSION->FIXED' FAILED
#
CREATE TABLE t1 (
col1 INT,
INDEX idx ((PI()))
);
DROP TABLE t1;
#
# Bug#28069710 WL#1075 ASSERTION
#              `R0 != STRING_RESULT && R1 != STRING_RESULT'
#
CREATE TABLE t1 (
col1 VARCHAR(255),
INDEX idx1 ((col1 * col1))
);
DROP TABLE t1;
#
# Bug#28069731 WL#1075 ASSERTION `!TABLE || (!TABLE->WRITE_SET ||
#              BITMAP_IS_SET(TABLE->WRITE_SE
#
CREATE TABLE table10_innodb_int_autoinc (
col_int_key int(11) DEFAULT NULL,
col_char_32_key char(32) DEFAULT NULL,
col_char_32_not_null_key char(32) NOT NULL,
pk int(11) NOT NULL AUTO_INCREMENT,
col_int_not_null_key int(11) NOT NULL,
PRIMARY KEY (pk),
KEY col_int_key (col_int_key),
KEY col_char_32_key (col_char_32_key),
KEY col_char_32_not_null_key (col_char_32_not_null_key),
KEY col_int_not_null_key (col_int_not_null_key),
KEY i1 (((col_int_key + col_int_key))),
KEY i2 (((col_int_key < 5))),
KEY i3 (((col_int_key < 9))),
KEY i5 (((col_int_not_null_key > 1)))
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4
COLLATE=utf8mb4_0900_ai_ci;
Warnings:
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
Warning	1681	Integer display width is deprecated and will be removed in a future release.
INSERT INTO table10_innodb_int_autoinc VALUES
(43,'if','that',1,99)
, (1,'we','she',2,1203568640)
, (7,'f','kxc',3,40)
, (-1846411264,'xce','mean',4,5)
, (9,'r','c',5,0)
, (5,'ek','the',6,138)
, (77,'l','i',7,-1414922240)
, (1,'k','q',8,1)
, (-1284505600,'sa','w',9,8)
, (NULL,'ate','t',10,4);
HANDLER table10_innodb_int_autoinc OPEN AS alias1 ;
HANDLER alias1 READ `PRIMARY` NEXT WHERE `col_int_not_null_key` <= 'j' LIMIT 8;
col_int_key	col_char_32_key	col_char_32_not_null_key	pk	col_int_not_null_key
9	r	c	5	0
77	l	i	7	-1414922240
Warnings:
Warning	1292	Truncated incorrect DOUBLE value: 'j'
DROP TABLE table10_innodb_int_autoinc;
# Test that removing and altering functional indexes works correctly
# with different casing.
CREATE TABLE t1 (
col1 INT
, INDEX myKey ((ABS(col1))));
# Get the expected name of the hidden generated column.
SELECT MD5(CONCAT("myKey", "0"));
MD5(CONCAT("myKey", "0"))
84a85350b439e4a8875061c9b8a13f70
SET SESSION debug="+d,show_hidden_columns";
# Column names aren't case sensitive, so this DDL should find the column
# and give an error saying that the column cannot be removed due to
# functional index.
ALTER TABLE t1 DROP COLUMN 84A85350b439e4a8875061c9b8a13f70;
ERROR HY000: Cannot drop column '84a85350b439e4a8875061c9b8a13f70' because it is used by a functional index. In order to drop the column, you must remove the functional index.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `84a85350b439e4a8875061c9b8a13f70` int(11) GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
  KEY `myKey` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
# Index names aren't case sensitive, so this DDL should rename the index
# and the hidden generated column as well.
ALTER TABLE t1 RENAME INDEX myKEY TO renaMEDkey;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `ba017fae742f858bd19700513c6b85e5` int(11) GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
  KEY `renaMEDkey` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
# Index names aren't case sensitive, so this DDL should remove the index
# and the column.
ALTER TABLE t1 DROP INDEX renamedkey;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
SET SESSION debug="-d,show_hidden_columns";
#
# Bug#28216553 ASSERTION `FIELD_TYPE < (MYSQL_TYPE_BIT + 1) || FIELD_TYPE
#
CREATE TABLE table1130 ( pk INTEGER AUTO_INCREMENT, a1 INTEGER NOT NULL, b1
INTEGER NULL, c1 BLOB NULL, d1 VARCHAR(2) NULL, PRIMARY KEY (pk), KEY
((COALESCE(a1))));
DROP TABLE table1130;
CREATE TABLE table29 (
pk INTEGER AUTO_INCREMENT
, a1 VARCHAR(5) NOT NULL
, PRIMARY KEY (pk)
, KEY ((a1)));
ERROR HY000: Functional index on a column is not supported. Consider using a regular index instead.
#
# Bug#28226443 VIRTUAL BOOL ITEM_FIELD::REPLACE_FIELD_PROCESSOR(UCHAR*):
#              ASSERTION `FALSE' FAIL
#
CREATE TABLE t1(a INT, b INT, c INT, UNIQUE INDEX i((a+b)));
ALTER TABLE t1 ADD INDEX p(a9e26254e651465c89ff715d5733e97c);
ERROR 42000: Key column 'a9e26254e651465c89ff715d5733e97c' doesn't exist in table
ALTER TABLE t1 ADD INDEX g((a + a9e26254e651465c89ff715d5733e97c));
ERROR 42S22: Unknown column 'a9e26254e651465c89ff715d5733e97c' in 'functional index'
DROP TABLE t1;
#
# Bug#28263237 ASSERTION `FALSE' IN ITEM_FIELD::REPLACE_FIELD_PROCESSOR
#              AT SQL_TABLE.CC:6303
#
CREATE TABLE table1286 (a1 BIT(24) NULL, KEY ((a1)));
ERROR HY000: Functional index on a column is not supported. Consider using a regular index instead.
CREATE TABLE  table276 ( pk INTEGER AUTO_INCREMENT, a1
SET('Nebraska','gfjzdfpngmbhvftlmiwrgduhdsbnkswbacwjvotkav','fjzdf') NULL,
PRIMARY KEY (pk), KEY ((a1)) );
ERROR HY000: Functional index on a column is not supported. Consider using a regular index instead.
CREATE TABLE t1(
e ENUM('a', 'bbb', 'cccccc')
, s SET('a', 'bbb', 'cccccc')
, b BIT(5)
, KEY ((NULLIF(e, null)))
, KEY ((NULLIF(s, null)))
, KEY ((NULLIF(b, null))));
SET SESSION debug="+d,show_hidden_columns";
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `e` enum('a','bbb','cccccc') DEFAULT NULL,
  `s` set('a','bbb','cccccc') DEFAULT NULL,
  `b` bit(5) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` varchar(12) GENERATED ALWAYS AS (nullif(`s`,NULL)) VIRTUAL,
  `3bb8c14d415110ac3b3c55ce9108ae2d` varchar(6) GENERATED ALWAYS AS (nullif(`e`,NULL)) VIRTUAL,
  `e0a812eddbaed00becd72bf920eccab8` int(5) unsigned GENERATED ALWAYS AS (nullif(`b`,NULL)) VIRTUAL,
  KEY `functional_index` ((nullif(`e`,NULL))),
  KEY `functional_index_2` ((nullif(`s`,NULL))),
  KEY `functional_index_3` ((nullif(`b`,NULL)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
DROP TABLE t1;
CREATE TABLE table121 (
pk INTEGER AUTO_INCREMENT
, a1 SET('Michigan','w','d') NOT NULL
, PRIMARY KEY (pk)
, KEY ((ST_Centroid(a1))));
ERROR HY000: Spatial functional index is not supported.
# Test that the collation is set correctly for numeric columns. If we
# have forgotten to set the correct collation, the hidden generated
# column will have a VARBINARY field, and we won't be able to use the
# index due to collation mismatch.
CREATE TABLE t1 (
col1 INT
, INDEX idx1 ((SOUNDEX(col1))));
SET SESSION debug="+d,show_hidden_columns";
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `45197ac678c1210c4a64bf22351853e7` varchar(11) GENERATED ALWAYS AS (soundex(`col1`)) VIRTUAL,
  KEY `idx1` ((soundex(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
EXPLAIN SELECT * FROM t1 WHERE SOUNDEX(col1) = "aa";
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ref	idx1	idx1	47	const	1	100.00	NULL
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (soundex(`test`.`t1`.`col1`) = 'aa')
DROP TABLE t1;
#
# Bug#29317684 REPLICATION IS SENSITIVE TO ORDER OF HIDDEN COLUMNS FOR
#              FUNCTIONAL INDEXES
#
# See that hidden columns are inserted at the end, sorted by their name
SET SESSION debug="+d,show_hidden_columns";
CREATE TABLE t1 (col1 INT, INDEX functional_index_1 ((col1 + 1)));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
CREATE INDEX functional_index_2 ON t1 ((col1 + 2));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` bigint(12) GENERATED ALWAYS AS ((`col1` + 2)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1))),
  KEY `functional_index_2` (((`col1` + 2)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
CREATE INDEX functional_index_3 ON t1 ((col1 + 3));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` bigint(12) GENERATED ALWAYS AS ((`col1` + 2)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  `e0a812eddbaed00becd72bf920eccab8` bigint(12) GENERATED ALWAYS AS ((`col1` + 3)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1))),
  KEY `functional_index_2` (((`col1` + 2))),
  KEY `functional_index_3` (((`col1` + 3)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
CREATE INDEX functional_index_4 ON t1 ((col1 + 4));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` bigint(12) GENERATED ALWAYS AS ((`col1` + 2)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  `d751e19906c02ce29a00572cb436f3ff` bigint(12) GENERATED ALWAYS AS ((`col1` + 4)) VIRTUAL,
  `e0a812eddbaed00becd72bf920eccab8` bigint(12) GENERATED ALWAYS AS ((`col1` + 3)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1))),
  KEY `functional_index_2` (((`col1` + 2))),
  KEY `functional_index_3` (((`col1` + 3))),
  KEY `functional_index_4` (((`col1` + 4)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
ALTER TABLE t1 ADD COLUMN col2 INT;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `col2` int(11) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` bigint(12) GENERATED ALWAYS AS ((`col1` + 2)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  `d751e19906c02ce29a00572cb436f3ff` bigint(12) GENERATED ALWAYS AS ((`col1` + 4)) VIRTUAL,
  `e0a812eddbaed00becd72bf920eccab8` bigint(12) GENERATED ALWAYS AS ((`col1` + 3)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1))),
  KEY `functional_index_2` (((`col1` + 2))),
  KEY `functional_index_3` (((`col1` + 3))),
  KEY `functional_index_4` (((`col1` + 4)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
CREATE INDEX functional_index_5 ON t1 ((col1 + col2));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` int(11) DEFAULT NULL,
  `col2` int(11) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` bigint(12) GENERATED ALWAYS AS ((`col1` + 2)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` bigint(12) GENERATED ALWAYS AS ((`col1` + 1)) VIRTUAL,
  `87a3a5599af64f6229889e9ee13e9457` bigint(12) GENERATED ALWAYS AS ((`col1` + `col2`)) VIRTUAL,
  `d751e19906c02ce29a00572cb436f3ff` bigint(12) GENERATED ALWAYS AS ((`col1` + 4)) VIRTUAL,
  `e0a812eddbaed00becd72bf920eccab8` bigint(12) GENERATED ALWAYS AS ((`col1` + 3)) VIRTUAL,
  KEY `functional_index_1` (((`col1` + 1))),
  KEY `functional_index_2` (((`col1` + 2))),
  KEY `functional_index_3` (((`col1` + 3))),
  KEY `functional_index_4` (((`col1` + 4))),
  KEY `functional_index_5` (((`col1` + `col2`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
CREATE TABLE t1 (
col1 BIT(5),
col2 BIT(10),
KEY functional_index_1 ((NULLIF(col1, NULL))),
KEY functional_index_2 ((NULLIF(col2, NULL)))
);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `col1` bit(5) DEFAULT NULL,
  `col2` bit(10) DEFAULT NULL,
  `0d1cbc68e8957783288d2b71268047c7` int(10) unsigned GENERATED ALWAYS AS (nullif(`col2`,NULL)) VIRTUAL,
  `2637460955f1f312c3fe5fb148fa23e1` int(5) unsigned GENERATED ALWAYS AS (nullif(`col1`,NULL)) VIRTUAL,
  KEY `functional_index_1` ((nullif(`col1`,NULL))),
  KEY `functional_index_2` ((nullif(`col2`,NULL)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t1;
SET SESSION debug="-d,show_hidden_columns";