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CREATE TABLE t (c1 INT PRIMARY KEY, c2 INT NOT NULL, c3 INT) ENGINE=InnoDB;
INSERT INTO t VALUES (1,2,3),(4,5,6),(7,8,9);
ALTER TABLE t CHANGE c1 c1 INT NULL FIRST, ALGORITHM=INPLACE;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
set @old_sql_mode = @@sql_mode;
set @@sql_mode = 'STRICT_TRANS_TABLES';
ALTER TABLE t MODIFY c3 INT NOT NULL, ALGORITHM=INPLACE;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
set @@sql_mode = @old_sql_mode;
ALTER TABLE t CHANGE c2 c2 INT, CHANGE c2 c2 INT NOT NULL;
ERROR 42S22: Unknown column 'c2' in 't'
ALTER TABLE t MODIFY c2 INT, MODIFY c2 INT NOT NULL;
ERROR 42S22: Unknown column 'c2' in 't'
ALTER TABLE t MODIFY c2 INT UNSIGNED, MODIFY c2 INT;
ERROR 42S22: Unknown column 'c2' in 't'
ALTER TABLE t MODIFY c2 CHAR(1) NOT NULL, MODIFY c2 INT NOT NULL;
ERROR 42S22: Unknown column 'c2' in 't'
ALTER TABLE t CHANGE c2 c2 INT NOT NULL;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
ALTER TABLE t MODIFY c2 INT NOT NULL;
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
SET SQL_MODE='STRICT_ALL_TABLES';
UPDATE t SET c2=NULL;
ERROR 23000: Column 'c2' cannot be null
SELECT * FROM t;
c1 c2 c3
1 2 3
4 5 6
7 8 9
ALTER TABLE t MODIFY c2 INT, ALGORITHM=INPLACE;
BEGIN;
UPDATE t SET c2=NULL;
SELECT * FROM t;
c1 c2 c3
1 NULL 3
4 NULL 6
7 NULL 9
ROLLBACK;
SELECT * FROM t;
c1 c2 c3
1 2 3
4 5 6
7 8 9
ALTER TABLE t MODIFY c2 INT NULL, ALGORITHM=INPLACE;
SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES
WHERE NAME='test/t';
TABLE_ID NAME FLAG N_COLS SPACE FILE_FORMAT ROW_FORMAT ZIP_PAGE_SIZE
# test/t 1 6 # Antelope Compact 0
DROP TABLE t;
CREATE TABLE t1(c1 INT) ENGINE=InnoDB;
ALTER TABLE t1 ADD CONSTRAINT UNIQUE KEY i1(c1);
ALTER TABLE t1 CHANGE c1 c1 INT NOT NULL,ADD KEY(c1);
DROP TABLE t1;
#
# MDEV-18732 InnoDB: ALTER IGNORE returns error for NULL
#
SET @mode = @@sql_mode;
SET sql_mode = STRICT_TRANS_TABLES;
CREATE TABLE t1(c INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (NULL);
ALTER IGNORE TABLE t1 MODIFY c INT NOT NULL;
affected rows: 1
info: Records: 1 Duplicates: 0 Warnings: 1
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1 VALUES (NULL);
ERROR 23000: Column 'c' cannot be null
SELECT * FROM t1;
c
0
DROP TABLE t1;
CREATE TABLE t1(c INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (NULL),(1),(1);
ALTER IGNORE TABLE t1 ADD UNIQUE(c);
affected rows: 3
info: Records: 3 Duplicates: 1 Warnings: 0
ALTER IGNORE TABLE t1 ADD PRIMARY KEY(c);
affected rows: 2
info: Records: 2 Duplicates: 0 Warnings: 1
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
SELECT * FROM t1;
c
0
1
DROP TABLE t1;
SET sql_mode = @mode;
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