MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results

7 files changed, 199 insertions, 0 deletions

diff --git a/mysql-test/r/ctype_latin1.result b/mysql-test/r/ctype_latin1.result
index 0ca643f25fb..b60d711568c 100644
--- a/mysql-test/r/ctype_latin1.result
+++ b/mysql-test/r/ctype_latin1.result
@@ -8804,6 +8804,31 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES latin1;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) DEFAULT NULL,
+  `b` varchar(50) DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
 #
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_like_range.result b/mysql-test/r/ctype_like_range.result
index f8032d0ae86..d8e621fd056 100644
--- a/mysql-test/r/ctype_like_range.result
+++ b/mysql-test/r/ctype_like_range.result
@@ -4430,5 +4430,50 @@ a_	6100	61FF
 a%	61000000000000000000	61FFFFFFFFFFFFFFFFFF
 DROP TABLE t1;
 #
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1 COLLATE latin1_swedish_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	313131
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET utf8 COLLATE utf8_general_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	313131
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET utf8 COLLATE utf8_unicode_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	313131
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	313131
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET ucs2 COLLATE ucs2_unicode_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	003100310031
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET utf16 COLLATE utf16_unicode_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	003100310031
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET utf32 COLLATE utf32_unicode_nopad_ci);
+INSERT INTO t1 VALUES ('111%');
+SELECT a, HEX(LIKE_RANGE_MIN(a,200)) FROM t1;
+a	HEX(LIKE_RANGE_MIN(a,200))
+111%	000000310000003100000031
+DROP TABLE t1;
+#
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_ucs2_uca.result b/mysql-test/r/ctype_ucs2_uca.result
index 48ec25b32e3..44a623842c6 100644
--- a/mysql-test/r/ctype_ucs2_uca.result
+++ b/mysql-test/r/ctype_ucs2_uca.result
@@ -559,6 +559,32 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES utf8, collation_connection=ucs2_unicode_520_nopad_ci;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) CHARACTER SET ucs2 COLLATE ucs2_unicode_520_nopad_ci DEFAULT NULL,
+  `b` varchar(50) CHARACTER SET ucs2 COLLATE ucs2_unicode_520_nopad_ci DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
+SET NAMES utf8;
 #
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_utf16_uca.result b/mysql-test/r/ctype_utf16_uca.result
index 1105225ed87..0cb9c4c74c1 100644
--- a/mysql-test/r/ctype_utf16_uca.result
+++ b/mysql-test/r/ctype_utf16_uca.result
@@ -7866,6 +7866,32 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES utf8, collation_connection=utf16_unicode_520_nopad_ci;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) CHARACTER SET utf16 COLLATE utf16_unicode_520_nopad_ci DEFAULT NULL,
+  `b` varchar(50) CHARACTER SET utf16 COLLATE utf16_unicode_520_nopad_ci DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
+SET NAMES utf8;
 #
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_utf32_uca.result b/mysql-test/r/ctype_utf32_uca.result
index 097da3d7c16..a112918c0c3 100644
--- a/mysql-test/r/ctype_utf32_uca.result
+++ b/mysql-test/r/ctype_utf32_uca.result
@@ -7886,6 +7886,32 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES utf8, collation_connection=utf32_unicode_520_nopad_ci;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) CHARACTER SET utf32 COLLATE utf32_unicode_520_nopad_ci DEFAULT NULL,
+  `b` varchar(50) CHARACTER SET utf32 COLLATE utf32_unicode_520_nopad_ci DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
+SET NAMES utf8;
 #
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_utf8_uca.result b/mysql-test/r/ctype_utf8_uca.result
index c8107da3b6f..23e9802b61a 100644
--- a/mysql-test/r/ctype_utf8_uca.result
+++ b/mysql-test/r/ctype_utf8_uca.result
@@ -559,6 +559,31 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES utf8 COLLATE utf8_unicode_nopad_ci;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) CHARACTER SET utf8 COLLATE utf8_unicode_nopad_ci DEFAULT NULL,
+  `b` varchar(50) CHARACTER SET utf8 COLLATE utf8_unicode_nopad_ci DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
 #
 # End of 10.2 tests
 #
diff --git a/mysql-test/r/ctype_utf8mb4_uca.result b/mysql-test/r/ctype_utf8mb4_uca.result
index ca7f1a3d7d4..0712ca63abd 100644
--- a/mysql-test/r/ctype_utf8mb4_uca.result
+++ b/mysql-test/r/ctype_utf8mb4_uca.result
@@ -6576,6 +6576,32 @@ DROP TABLE t1;
 # End of ctype_pad.inc
 #
 SET STORAGE_ENGINE=Default;
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_520_nopad_ci;
+#
+# MDEV-14350 Index use with collation utf8mb4_unicode_nopad_ci on LIKE pattern with wrong results
+#
+CREATE OR REPLACE TABLE t1 AS SELECT SPACE(50) AS a, SPACE (50) AS b;
+ALTER TABLE t1 ADD KEY(a), ADD KEY(b);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_nopad_ci DEFAULT NULL,
+  `b` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_nopad_ci DEFAULT NULL,
+  KEY `a` (`a`),
+  KEY `b` (`b`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+INSERT INTO t1 VALUES ('111', '111');
+INSERT INTO t1 VALUES ('222', '222');
+INSERT INTO t1 VALUES ('333', '333');
+INSERT INTO t1 VALUES ('444', '444');
+SELECT * FROM t1 WHERE a LIKE '111%';
+a	b
+111	111
+SELECT * FROM t1 IGNORE INDEX (a) WHERE a LIKE '111%';
+a	b
+111	111
+DROP TABLE t1;
+SET NAMES utf8mb4;
 #
 # End of 10.2 tests
 #