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#
# Start of 5.5 tests
#
#
# MDEV-7649 wrong result when comparing utf8 column with an invalid literal
#
SET NAMES utf8 COLLATE utf8_unicode_ci;
#
# Start of ctype_utf8_ilseq.inc
#
CREATE TABLE t1 ENGINE=InnoDB AS SELECT REPEAT(' ', 60) AS ch LIMIT 0;;
ALTER TABLE t1
ADD id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
ADD KEY(ch);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`ch` varchar(60) CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_ci DEFAULT NULL,
`id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`id`),
KEY `ch` (`ch`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t1 (ch) VALUES ('admin'),('admin1');
SELECT ch FROM t1 WHERE ch='admin๐';
ch
EXPLAIN SELECT ch FROM t1 WHERE ch='admin๐';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch='admin๐';
ch
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch='admin๐';
ch
DELETE FROM t1;
INSERT INTO t1 (ch) VALUES ('a'), ('a?'), ('a??'), ('a???'), ('a????');
INSERT INTO t1 (ch) VALUES ('ab'),('a?b'),('a??b'),('a???b'),('a????b');
INSERT INTO t1 (ch) VALUES ('az'),('a?z'),('a??z'),('a???z'),('a????z');
INSERT INTO t1 (ch) VALUES ('z');
INSERT INTO t1 (ch) VALUES (_utf8 0x61D080);
INSERT INTO t1 (ch) VALUES (_utf8 0x61D680);
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch='a๐' ORDER BY ch;
ch
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch='a๐b' ORDER BY ch;
ch
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch='a๐' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL # Impossible WHERE noticed after reading const tables
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch='a๐' ORDER BY ch;
ch
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch='a๐b' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL # Impossible WHERE noticed after reading const tables
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch='a๐b' ORDER BY ch;
ch
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch<'a๐' ORDER BY ch;
ch
a
a?
a??
a???
a????
a????b
a????z
a???b
a???z
a??b
a??z
a?b
a?z
ab
az
aะ
aึ
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch<'a๐b' ORDER BY ch;
ch
a
a?
a??
a???
a????
a????b
a????z
a???b
a???z
a??b
a??z
a?b
a?z
ab
az
aะ
aึ
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch<'a๐' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index ch ch 183 NULL # Using where; Using index
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch<'a๐' ORDER BY ch;
ch
a
a?
a??
a???
a????
a????b
a????z
a???b
a???z
a??b
a??z
a?b
a?z
ab
az
aะ
aึ
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch<'a๐b' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index ch ch 183 NULL # Using where; Using index
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch<'a๐b' ORDER BY ch;
ch
a
a?
a??
a???
a????
a????b
a????z
a???b
a???z
a??b
a??z
a?b
a?z
ab
az
aะ
aึ
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch>'a๐' ORDER BY ch;
ch
z
SELECT ch FROM t1 IGNORE KEY (ch) WHERE ch>'a๐b' ORDER BY ch;
ch
z
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch>'a๐' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index ch ch 183 NULL # Using where; Using index
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch>'a๐' ORDER BY ch;
ch
z
EXPLAIN
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch>'a๐b' ORDER BY ch;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index ch ch 183 NULL # Using where; Using index
SELECT ch FROM t1 FORCE KEY (ch) WHERE ch>'a๐b' ORDER BY ch;
ch
z
ALTER TABLE t1 DROP KEY ch;
# 0xD18F would be a good 2-byte character, 0xD1 is an incomplete sequence
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0xD1,'''');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0xD1,'b''');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch<''a', 0xD1,''' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
a
a?
a??
a???
a????
a????b
a????z
a???b
a???z
a??b
a??z
a?b
a?z
ab
az
aะ
aึ
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch>''a', 0xD1,''' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
z
# 0xEA9A96 would be a good 3-byte character, 0xEA9A is an incomplete sequence
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0xEA9A,''' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0xEA9A,'b'' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
# 0x8F is a bad byte sequence (an mb2tail without mb2head)
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0x8F,''' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0x8F,'b'' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
# 0x8F8F is a bad byte sequence (an mb2tail without mb2head, two times)
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0x8F8F,''' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
SET @query=CONCAT('SELECT ch FROM t1 WHERE ch=''a', 0x8F8F,'b'' ORDER BY ch');
PREPARE stmt FROM @query;
EXECUTE stmt;
ch
DROP TABLE t1;
#
# End of ctype_utf8_ilseq.inc
#
#
# End of 5.5 tests
#
|
