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MDEV-17833 ALTER TABLE is not enforcing prefix index size limit

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ha_innobase::prepare_inplace_alter_table(): check max column length for every
index in a table, not just added in this particular ALTER TABLE with ADD INDEX ones.
This commit is contained in:
Eugene Kosov
2018-12-11 22:03:44 +03:00
parent 4886d14827
commit d956709b4b
4 changed files with 67 additions and 6 deletions
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33
mysql-test/suite/innodb/r/innodb-index.result
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@@ -1180,3 +1180,36 @@ t2c CREATE TABLE `t2c` (
KEY `t2a` (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1,t2,t2c,t2i;
SET @save_format = @@GLOBAL.innodb_file_format;
SET @save_prefix = @@GLOBAL.innodb_large_prefix;
SET GLOBAL innodb_file_format=barracuda;
SET GLOBAL innodb_large_prefix=ON;
CREATE TABLE t1 (c VARCHAR(1024),
c1 CHAR(255) NOT NULL,c2 CHAR(255) NOT NULL,c3 CHAR(255) NOT NULL,
c4 CHAR(255) NOT NULL,c5 CHAR(255) NOT NULL,c6 CHAR(255) NOT NULL,
c7 CHAR(255) NOT NULL,c8 CHAR(255) NOT NULL,c9 CHAR(255) NOT NULL,
ca CHAR(255) NOT NULL,cb CHAR(255) NOT NULL,cc CHAR(255) NOT NULL,
cd CHAR(255) NOT NULL,ce CHAR(255) NOT NULL,cf CHAR(255) NOT NULL,
d0 CHAR(255) NOT NULL,d1 CHAR(255) NOT NULL,d2 CHAR(255) NOT NULL,
d3 CHAR(255) NOT NULL,d4 CHAR(255) NOT NULL,d5 CHAR(255) NOT NULL,
d6 CHAR(255) NOT NULL,d7 CHAR(255) NOT NULL,d8 CHAR(255) NOT NULL,
d9 CHAR(255) NOT NULL,da CHAR(255) NOT NULL,db CHAR(255) NOT NULL,
dc CHAR(255) NOT NULL,dd CHAR(255) NOT NULL,de CHAR(255) NOT NULL,
UNIQUE KEY(c))
ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
INSERT INTO t1 VALUES
(repeat('a',999),'','','','','','','','','','','','','','','','','','','','','','','','','','','','','',''),
(CONCAT(repeat('a',999),'b'),'','','','','','','','','','','','','','','','','','','','','','','','','','','','','','');
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, algorithm=inplace;
ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, algorithm=copy;
ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
SELECT COUNT(*) FROM t1;
COUNT(*)
2
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
SET GLOBAL innodb_file_format=@save_format;
SET GLOBAL innodb_large_prefix=@save_prefix;