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authorMarko Mäkelä <marko.makela@mariadb.com>2018-02-09 08:28:42 +0200
committerMarko Mäkelä <marko.makela@mariadb.com>2018-02-09 10:03:53 +0200
commit7c1bd8fa04962bcdf9b9e3ea2d51bdb6d0fb88e9 (patch)
tree75d575dec1e048764d0ac77e90b1465d24dcd82c
parente4da20d438938bc964f352bd47719a09cd34c23f (diff)
downloadmariadb-git-7c1bd8fa04962bcdf9b9e3ea2d51bdb6d0fb88e9.tar.gz
Add back (and clean up) the test innodb_zip.prefix_index_liftedlimit
This MySQL 5.5 test innodb_zip.innodb_prefix_index_lifted was renamed in MySQL 5.7. In commit 2e814d4702d71a04388386a9f591d14a35980bfe the test was inadvertently removed, instead of being renamed. The absence of this test caused a regression in MariaDB 10.2: MDEV-15257 Invalid CREATE INDEX fails to report error correctly
-rw-r--r--mysql-test/suite/innodb_zip/r/prefix_index_liftedlimit.result1421
-rw-r--r--mysql-test/suite/innodb_zip/t/prefix_index_liftedlimit.test1332
2 files changed, 2753 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb_zip/r/prefix_index_liftedlimit.result b/mysql-test/suite/innodb_zip/r/prefix_index_liftedlimit.result
new file mode 100644
index 00000000000..a7a9917b6f4
--- /dev/null
+++ b/mysql-test/suite/innodb_zip/r/prefix_index_liftedlimit.result
@@ -0,0 +1,1421 @@
+SET @large_prefix_orig = @@GLOBAL.innodb_large_prefix;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+COLUMN_NAME INDEX_NAME SUB_PART INDEX_TYPE
+col_1_varchar PRIMARY 3072 BTREE
+col_1_varchar prefix_idx 3072 BTREE
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+ALTER TABLE worklog5743 ROW_FORMAT=REDUNDANT;
+ERROR HY000: Index column size too large. The maximum column size is 767 bytes
+ALTER TABLE worklog5743 ROW_FORMAT=COMPACT;
+ERROR HY000: Index column size too large. The maximum column size is 767 bytes
+ALTER TABLE worklog5743 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=16;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (3072));
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+COLUMN_NAME INDEX_NAME SUB_PART INDEX_TYPE
+col_1_text PRIMARY 3072 BTREE
+col_1_text prefix_idx 3072 BTREE
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743;
+col_1_text = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_mediumtext MEDIUMTEXT , col_2_mediumtext MEDIUMTEXT ,
+PRIMARY KEY (col_1_mediumtext(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_mediumtext (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_mediumtext = REPEAT("a", 4000),col_2_mediumtext = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_mediumtext = REPEAT("a", 4000) col_2_mediumtext = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_mediumtext = REPEAT("c", 4000)
+WHERE col_1_mediumtext = REPEAT("a", 4000)
+AND col_2_mediumtext = REPEAT("o", 4000);
+SELECT col_1_mediumtext = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_mediumtext = REPEAT("c", 4000)
+AND col_2_mediumtext = REPEAT("o", 4000);
+col_1_mediumtext = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_mediumtext = REPEAT("b", 4000);
+SELECT col_1_mediumtext = REPEAT("c", 4000) FROM worklog5743;
+col_1_mediumtext = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_longtext LONGTEXT , col_2_longtext LONGTEXT ,
+PRIMARY KEY (col_1_longtext(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_longtext (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_longtext = REPEAT("a", 4000) , col_2_longtext = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_longtext = REPEAT("a", 4000) col_2_longtext = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_longtext = REPEAT("c", 4000)
+WHERE col_1_longtext = REPEAT("a", 4000)
+AND col_2_longtext = REPEAT("o", 4000);
+SELECT col_1_longtext = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_longtext = REPEAT("c", 4000)
+AND col_2_longtext = REPEAT("o", 4000);
+col_1_longtext = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_longtext = REPEAT("b", 4000);
+SELECT col_1_longtext = REPEAT("c", 4000) FROM worklog5743;
+col_1_longtext = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_blob (3072));
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+COLUMN_NAME INDEX_NAME SUB_PART INDEX_TYPE
+col_1_blob PRIMARY 3072 BTREE
+col_1_blob prefix_idx 3072 BTREE
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_blob = REPEAT("a", 4000) col_2_blob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+col_1_blob = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743;
+col_1_blob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_mediumblob MEDIUMBLOB , col_2_mediumblob MEDIUMBLOB ,
+PRIMARY KEY (col_1_mediumblob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_mediumblob (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_mediumblob = REPEAT("a", 4000),col_2_mediumblob = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_mediumblob = REPEAT("a", 4000) col_2_mediumblob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_mediumblob = REPEAT("c", 4000)
+WHERE col_1_mediumblob = REPEAT("a", 4000)
+AND col_2_mediumblob = REPEAT("o", 4000);
+SELECT col_1_mediumblob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_mediumblob = REPEAT("c", 4000)
+AND col_2_mediumblob = REPEAT("o", 4000);
+col_1_mediumblob = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_mediumblob = REPEAT("b", 4000);
+SELECT col_1_mediumblob = REPEAT("c", 4000) FROM worklog5743;
+col_1_mediumblob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_longblob LONGBLOB , col_2_longblob LONGBLOB ,
+PRIMARY KEY (col_1_longblob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_longblob (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_longblob = REPEAT("a", 4000) , col_2_longblob = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_longblob = REPEAT("a", 4000) col_2_longblob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_longblob = REPEAT("c", 4000)
+WHERE col_1_longblob = REPEAT("a", 4000)
+AND col_2_longblob = REPEAT("o", 4000);
+SELECT col_1_longblob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_longblob = REPEAT("c", 4000)
+AND col_2_longblob = REPEAT("o", 4000);
+col_1_longblob = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_longblob = REPEAT("b", 4000);
+SELECT col_1_longblob = REPEAT("c", 4000) FROM worklog5743;
+col_1_longblob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varbinary VARBINARY (4000) ,
+PRIMARY KEY (col_1_varbinary(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varbinary = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varbinary = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (col_1_char CHAR (255) , col_2_char CHAR (255),
+col_3_char CHAR (255), col_4_char CHAR (255),col_5_char CHAR (255),
+col_6_char CHAR (255), col_7_char CHAR (255),col_8_char CHAR (255),
+col_9_char CHAR (255), col_10_char CHAR (255),col_11_char CHAR (255),
+col_12_char CHAR (255), col_13_char CHAR (255),col_14_char CHAR (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+CREATE INDEX prefix_idx ON worklog5743(col_1_char(250),col_2_char(250),
+col_3_char(250),col_4_char(250),col_5_char(250),col_6_char(250),
+col_7_char(250),col_8_char(250),col_9_char(250),col_10_char(250),
+col_11_char(250),col_12_char(250),col_13_char(72)
+);
+INSERT INTO worklog5743 VALUES(REPEAT("b", 255) , REPEAT("p", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+SELECT col_1_char = REPEAT("a", 255) , col_2_char = REPEAT("o", 255) FROM worklog5743;
+col_1_char = REPEAT("a", 255) col_2_char = REPEAT("o", 255)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_char = REPEAT("c", 255)
+WHERE col_1_char = REPEAT("a", 255) AND col_2_char = REPEAT("o", 255);
+SELECT col_1_char = REPEAT("c", 255) FROM worklog5743
+WHERE col_1_char = REPEAT("c", 255) AND col_2_char = REPEAT("o", 255);
+col_1_char = REPEAT("c", 255)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_char = REPEAT("b", 255);
+SELECT col_1_char = REPEAT("c", 255) FROM worklog5743;
+col_1_char = REPEAT("c", 255)
+1
+0
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (col_1_binary BINARY (255) , col_2_binary BINARY (255),
+col_3_binary BINARY(255),col_4_binary BINARY (255),col_5_binary BINARY (255),
+col_6_binary BINARY(255),col_7_binary BINARY (255),col_8_binary BINARY (255),
+col_9_binary BINARY(255),col_10_binary BINARY (255),col_11_binary BINARY (255),
+col_12_binary BINARY(255),col_13_binary BINARY (255),col_14_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+CREATE INDEX prefix_idx ON worklog5743(col_1_binary (250),col_2_binary (250),
+col_3_binary (250),col_4_binary (250),col_5_binary (250),
+col_6_binary (250),col_7_binary (250),col_8_binary (250),
+col_9_binary (250),col_10_binary (250),col_11_binary (250),
+col_12_binary (250),col_13_binary (72)
+);
+INSERT INTO worklog5743 VALUES(REPEAT("b", 255) , REPEAT("p", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+SELECT col_1_binary = REPEAT("a", 255) , col_2_binary = REPEAT("o", 255) FROM worklog5743;
+col_1_binary = REPEAT("a", 255) col_2_binary = REPEAT("o", 255)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_binary = REPEAT("c", 255)
+WHERE col_1_binary = REPEAT("a", 255)
+AND col_2_binary = REPEAT("o", 255);
+SELECT col_1_binary = REPEAT("c", 255) FROM worklog5743
+WHERE col_1_binary = REPEAT("c", 255)
+AND col_2_binary = REPEAT("o", 255);
+col_1_binary = REPEAT("c", 255)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_binary = REPEAT("b", 255);
+SELECT col_1_binary = REPEAT("c", 255) FROM worklog5743;
+col_1_binary = REPEAT("c", 255)
+1
+0
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743_key2 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key2;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key2 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key2
+WHERE col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key2;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key2;
+CREATE TABLE worklog5743_key4 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key4;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key4 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key4;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key4;
+CREATE TABLE worklog5743_key8 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key8;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key8 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key8;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key8;
+CREATE TABLE worklog5743_key2 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key2;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key2 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key2
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key2;
+col_1_text = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key2;
+CREATE TABLE worklog5743_key4 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key4;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key4 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key4;
+col_1_text = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key4;
+CREATE TABLE worklog5743_key8 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key8;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key8 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key8;
+col_1_text = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key8;
+CREATE TABLE worklog5743_key2 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key2;
+col_1_blob = REPEAT("a", 4000) col_2_blob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key2 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key2
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+col_1_blob = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key2;
+col_1_blob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key2;
+CREATE TABLE worklog5743_key4 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key4;
+col_1_blob = REPEAT("a", 4000) col_2_blob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key4 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+col_1_blob = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key4;
+col_1_blob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key4;
+CREATE TABLE worklog5743_key8 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key8;
+col_1_blob = REPEAT("a", 4000) col_2_blob = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743_key8 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+col_1_blob = REPEAT("b", 3500)
+0
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key8;
+col_1_blob = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743_key8;
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varchar VARCHAR (4000) ,
+col_3_text TEXT (4000), col_4_blob BLOB (4000), col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+CREATE INDEX prefix_idx1 ON worklog5743(col_1_varbinary (3072));
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("c", 4000)
+1
+0
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (3072));
+CREATE INDEX prefix_idx4 ON worklog5743(col_4_blob (3072));
+CREATE INDEX prefix_idx5 ON worklog5743(col_5_text (3072));
+BEGIN;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SHOW WARNINGS;
+Level Code Message
+ROLLBACK;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varchar VARCHAR (4000) ,
+col_3_text TEXT (4000), col_4_blob BLOB (4000),col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+CREATE INDEX prefix_idx1 ON worklog5743(col_1_varbinary (3072));
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (3072));
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (3072));
+CREATE INDEX prefix_idx4 ON worklog5743(col_4_blob (3072));
+CREATE INDEX prefix_idx5 ON worklog5743(col_5_text (3072));
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+ROLLBACK;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+COMMIT;
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+ROLLBACK;
+BEGIN;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SHOW WARNINGS;
+Level Code Message
+ROLLBACK;
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("c", 4000)
+0
+0
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) CHARACTER SET 'utf8',
+col_2_text TEXT (4000) CHARACTER SET 'utf8',
+PRIMARY KEY (col_1_text(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743;
+col_1_text = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (col_1_varchar VARCHAR (4000) CHARACTER SET 'utf8',
+col_2_varchar VARCHAR (4000) CHARACTER SET 'utf8' ,
+PRIMARY KEY (col_1_varchar(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) ,
+col_2_varchar VARCHAR (4000) CHARACTER SET 'utf8',
+col_3_text TEXT (4000) CHARACTER SET 'utf8',
+col_4_blob BLOB (4000),col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (500));
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (500));
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+ROLLBACK;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+COMMIT;
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+ROLLBACK;
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("c", 4000)
+0
+0
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) CHARACTER SET 'utf8',
+col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("स", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("स", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_text = REPEAT("स", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_text = REPEAT("क", 4000)
+WHERE col_1_text = REPEAT("स", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("क", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("क", 4000)
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("क", 4000) FROM worklog5743;
+col_1_text = REPEAT("क", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+connect con1,localhost,root,,;
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+connect con2,localhost,root,,;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+0 1
+connection con1;
+select @@session.tx_isolation;
+@@session.tx_isolation
+REPEATABLE-READ
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+0 1
+SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
+select @@session.tx_isolation;
+@@session.tx_isolation
+READ-UNCOMMITTED
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+0 1
+1 1
+SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
+START TRANSACTION;
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+connection con2;
+COMMIT;
+connection con1;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+0 1
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+COMMIT;
+connection default;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+connection con1;
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+START TRANSACTION;
+connection con2;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("a", 200);
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+0 1
+COMMIT;
+connection con1;
+SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
+select @@session.tx_isolation;
+@@session.tx_isolation
+READ-UNCOMMITTED
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+1 1
+SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+COMMIT;
+connection default;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+connection con1;
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+1 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+START TRANSACTION;
+connection con2;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("a", 200);
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("a", 200) col_2_text = REPEAT("o", 200)
+0 1
+ROLLBACK;
+disconnect con2;
+connection con1;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+col_1_text = REPEAT("b", 200) col_2_text = REPEAT("o", 200)
+0 1
+SELECT COUNT(*) FROM worklog5743;
+COUNT(*)
+1
+COMMIT;
+connection default;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+0
+1
+SELECT tbl1.col_1_varchar = tbl2.col_1_varchar
+FROM worklog5743 tbl1 , worklog5743 tbl2
+WHERE tbl1.col_1_varchar = tbl2.col_1_varchar ;
+tbl1.col_1_varchar = tbl2.col_1_varchar
+1
+1
+1
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2) ;
+tbl1.col_1_varchar = REPEAT("c", 4000)
+0
+0
+1
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar NOT IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2) ;
+tbl1.col_1_varchar = REPEAT("c", 4000)
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1 WHERE
+col_1_varchar IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2)
+AND col_1_varchar = REPEAT("c", 4000);
+tbl1.col_1_varchar = REPEAT("c", 4000)
+1
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar in (
+SELECT tbl2.col_1_varchar FROM worklog5743 tbl2
+WHERE tbl1.col_1_varchar != tbl2.col_1_varchar
+) ;
+tbl1.col_1_varchar = REPEAT("c", 4000)
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar in (
+SELECT tbl2.col_1_varchar FROM worklog5743 tbl2
+WHERE tbl1.col_1_varchar = tbl2.col_1_varchar
+) ;
+tbl1.col_1_varchar = REPEAT("c", 4000)
+0
+0
+1
+SELECT
+REVERSE(col_1_varchar) = REPEAT("c", 4000) ,
+REVERSE(REVERSE(col_1_varchar)) = REPEAT("c", 4000)
+FROM worklog5743;
+REVERSE(col_1_varchar) = REPEAT("c", 4000) REVERSE(REVERSE(col_1_varchar)) = REPEAT("c", 4000)
+0 0
+0 0
+1 1
+SELECT
+UPPER(col_1_varchar) = REPEAT("c", 4000) ,
+UPPER(col_1_varchar) = REPEAT("C", 4000) ,
+LOWER(UPPER(col_1_varchar)) = REPEAT("c", 4000)
+FROM worklog5743;
+UPPER(col_1_varchar) = REPEAT("c", 4000) UPPER(col_1_varchar) = REPEAT("C", 4000) LOWER(UPPER(col_1_varchar)) = REPEAT("c", 4000)
+0 0 0
+0 0 0
+1 1 1
+SELECT
+col_1_varchar = REPEAT("c", 4000)
+FROM worklog5743 WHERE col_1_varchar like '%c__%';
+col_1_varchar = REPEAT("c", 4000)
+1
+SELECT SUBSTRING(INSERT(col_1_varchar, 1, 4, 'kkkk'),1,10) FROM worklog5743 ;
+SUBSTRING(INSERT(col_1_varchar, 1, 4, 'kkkk'),1,10)
+kkkkaaaaaa
+kkkkbbbbbb
+kkkkcccccc
+SELECT CONCAT(SUBSTRING(col_1_varchar,-5,3),'append') FROM worklog5743 ;
+CONCAT(SUBSTRING(col_1_varchar,-5,3),'append')
+aaaappend
+bbbappend
+cccappend
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) ,
+col_2_varchar VARCHAR (4000) ,
+UNIQUE INDEX (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 1000),REPEAT("c", 1000)), REPEAT("o", 4000));
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 2000)), REPEAT("o", 4000));
+INSERT INTO worklog5743 VALUES(NULL,NULL);
+INSERT INTO worklog5743 VALUES(NULL,NULL);
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE
+FROM INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+COLUMN_NAME INDEX_NAME SUB_PART INDEX_TYPE
+col_1_varchar col_1_varchar 3072 BTREE
+SELECT col_1_varchar FROM worklog5743 WHERE col_1_varchar IS NULL;
+col_1_varchar
+NULL
+NULL
+SELECT col_1_varchar = concat(REPEAT("a", 2000),REPEAT("b", 2000))
+FROM worklog5743 WHERE col_1_varchar IS NOT NULL ORDER BY 1;
+col_1_varchar = concat(REPEAT("a", 2000),REPEAT("b", 2000))
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY `prefix_primary` (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar(3072));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+ERROR 23000: Duplicate entry 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' for key 'PRIMARY'
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY `prefix_primary` (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varchar = REPEAT("a", 4000) col_2_varchar = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+col_1_varchar = REPEAT("c", 4000)
+1
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar(3072));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+ERROR 23000: Duplicate entry 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' for key 'PRIMARY'
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+col_1_varchar = REPEAT("c", 4000)
+0
+1
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR(4000) , col_2_varchar VARCHAR(4000) ,
+PRIMARY KEY (col_1_varchar (3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("c", 3500) , REPEAT("o", 3500));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+connection con1;
+SELECT col_1_varchar = REPEAT("c", 3500) , col_2_varchar = REPEAT("o", 3500)
+FROM worklog5743;
+col_1_varchar = REPEAT("c", 3500) col_2_varchar = REPEAT("o", 3500)
+1 1
+connection default;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 3500) , REPEAT("o", 3500));
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("o", 3500);
+col_1_varchar = REPEAT("b", 3500)
+0
+0
+COMMIT;
+connection con1;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("k", 3500),REPEAT("p", 3500));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("b", 3500)
+WHERE col_1_varchar = REPEAT("a", 3500)
+AND col_2_varchar = REPEAT("o", 3500);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("o", 3500);
+col_1_varchar = REPEAT("b", 3500)
+1
+0
+connection default;
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 3500);
+SELECT col_1_varchar = REPEAT("a", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("p", 3500);
+col_1_varchar = REPEAT("a", 3500)
+0
+connection con1;
+COMMIT;
+disconnect con1;
+connection default;
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varbinary VARBINARY (4000) ,
+PRIMARY KEY (col_1_varbinary(3072))) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varbinary = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000) col_2_varbinary = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+1
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_varbinary = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("b", 4000)
+AND col_2_varbinary = REPEAT("p", 4000);
+col_1_varbinary = REPEAT("b", 4000)
+1
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (2000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000)
+1
+0
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+DROP INDEX prefix_idx ON worklog5743;
+SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (4000));
+Warnings:
+Warning 1071 Specified key was too long; max key length is 3072 bytes
+SET sql_mode = default;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) FROM worklog5743;
+col_1_varbinary = REPEAT("a", 4000)
+1
+0
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+col_1_varbinary = REPEAT("c", 4000)
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(500))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+1
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_text = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("b", 4000) AND col_2_text = REPEAT("p", 4000);
+col_1_text = REPEAT("b", 4000)
+1
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000)
+1
+0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+DROP INDEX prefix_idx ON worklog5743;
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (4000));
+Warnings:
+Note 1071 Specified key was too long; max key length is 3072 bytes
+SHOW CREATE TABLE worklog5743;
+Table Create Table
+worklog5743 CREATE TABLE `worklog5743` (
+ `col_1_text` text NOT NULL,
+ `col_2_text` text DEFAULT NULL,
+ PRIMARY KEY (`col_1_text`(500)),
+ KEY `prefix_idx` (`col_1_text`(3072))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000)
+1
+0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000) col_2_text = REPEAT("o", 4000)
+1 1
+0 0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+1
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+SELECT col_1_text = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("b", 4000)
+AND col_2_text = REPEAT("p", 4000);
+col_1_text = REPEAT("b", 4000)
+1
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_text (700));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000)
+1
+0
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_text (950));
+ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+col_1_text = REPEAT("a", 4000)
+0
+1
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+col_1_text = REPEAT("c", 4000)
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar (900));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar (3073));
+ERROR 42000: Specified key was too long; max key length is 3072 bytes
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_BLOB BLOB (4000) , PRIMARY KEY (col_1_BLOB(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_BLOB (500));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_BLOB (3073));
+ERROR 42000: Specified key was too long; max key length is 3072 bytes
+DROP TABLE worklog5743;
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 1000),REPEAT("c", 1000)),
+REPEAT("o", 4000));
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 2000)), REPEAT("o", 4000));
+ALTER TABLE worklog5743 ADD PRIMARY KEY `pk_idx` (col_1_varchar(3000));
+ERROR 23000: Duplicate entry 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' for key 'PRIMARY'
+DROP TABLE worklog5743;
+set global innodb_large_prefix=0;
+Warnings:
+Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See https://mariadb.com/kb/en/library/xtradbinnodb-file-format/
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+ERROR 42000: Specified key was too long; max key length is 767 bytes
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(767))
+) engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT('a',4000),REPEAT('b',4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (767));
+affected rows: 0
+info: Records: 0 Duplicates: 0 Warnings: 0
+ALTER TABLE worklog5743 ROW_FORMAT=REDUNDANT;
+affected rows: 0
+info: Records: 0 Duplicates: 0 Warnings: 0
+SHOW CREATE TABLE worklog5743;
+Table Create Table
+worklog5743 CREATE TABLE `worklog5743` (
+ `col_1_varchar` varchar(4000) NOT NULL,
+ `col_2_varchar` varchar(4000) DEFAULT NULL,
+ PRIMARY KEY (`col_1_varchar`(767)),
+ KEY `prefix_idx` (`col_1_varchar`(767))
+) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
+DROP TABLE worklog5743;
+SET GLOBAL innodb_large_prefix = @large_prefix_orig;
+Warnings:
+Warning 131 Using innodb_large_prefix is deprecated and the parameter may be removed in future releases. See https://mariadb.com/kb/en/library/xtradbinnodb-file-format/
diff --git a/mysql-test/suite/innodb_zip/t/prefix_index_liftedlimit.test b/mysql-test/suite/innodb_zip/t/prefix_index_liftedlimit.test
new file mode 100644
index 00000000000..ac4946e08c6
--- /dev/null
+++ b/mysql-test/suite/innodb_zip/t/prefix_index_liftedlimit.test
@@ -0,0 +1,1332 @@
+######## suite/innodb/t/innodb_prefix_index_liftedlimit.test ##########
+# #
+# Testcase for worklog WL#5743: Lift the limit of index key prefixes #
+# According to WL#5743 - prefix index limit is increased from 767 #
+# to 3072 for ROW_FORMAT=DYNAMIC and ROW_FORMAT=COMPRESSED. #
+# All sub-test in this file focus on prefix index along with other #
+# operations #
+# #
+# #
+# Creation: #
+# 2011-05-19 Implemented this test as part of WL#5743 #
+# #
+######################################################################
+
+--source include/have_innodb.inc
+--source include/have_innodb_16k.inc
+
+SET @large_prefix_orig = @@GLOBAL.innodb_large_prefix;
+
+# Prefix index with VARCHAR data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+# check IS
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+--error ER_INDEX_COLUMN_TOO_LONG
+ALTER TABLE worklog5743 ROW_FORMAT=REDUNDANT;
+--error ER_INDEX_COLUMN_TOO_LONG
+ALTER TABLE worklog5743 ROW_FORMAT=COMPACT;
+ALTER TABLE worklog5743 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=16;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with TEXT data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (3072));
+# check IS
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with MEDIUMTEXT data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_mediumtext MEDIUMTEXT , col_2_mediumtext MEDIUMTEXT ,
+PRIMARY KEY (col_1_mediumtext(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_mediumtext (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_mediumtext = REPEAT("a", 4000),col_2_mediumtext = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_mediumtext = REPEAT("c", 4000)
+WHERE col_1_mediumtext = REPEAT("a", 4000)
+AND col_2_mediumtext = REPEAT("o", 4000);
+SELECT col_1_mediumtext = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_mediumtext = REPEAT("c", 4000)
+AND col_2_mediumtext = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_mediumtext = REPEAT("b", 4000);
+SELECT col_1_mediumtext = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with LONGTEXT data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_longtext LONGTEXT , col_2_longtext LONGTEXT ,
+PRIMARY KEY (col_1_longtext(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_longtext (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_longtext = REPEAT("a", 4000) , col_2_longtext = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_longtext = REPEAT("c", 4000)
+WHERE col_1_longtext = REPEAT("a", 4000)
+AND col_2_longtext = REPEAT("o", 4000);
+SELECT col_1_longtext = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_longtext = REPEAT("c", 4000)
+AND col_2_longtext = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_longtext = REPEAT("b", 4000);
+SELECT col_1_longtext = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with BLOB data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_blob (3072));
+# check IS
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE FROM
+INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with MEDIUMBLOB data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_mediumblob MEDIUMBLOB , col_2_mediumblob MEDIUMBLOB ,
+PRIMARY KEY (col_1_mediumblob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_mediumblob (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_mediumblob = REPEAT("a", 4000),col_2_mediumblob = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_mediumblob = REPEAT("c", 4000)
+WHERE col_1_mediumblob = REPEAT("a", 4000)
+AND col_2_mediumblob = REPEAT("o", 4000);
+SELECT col_1_mediumblob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_mediumblob = REPEAT("c", 4000)
+AND col_2_mediumblob = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_mediumblob = REPEAT("b", 4000);
+SELECT col_1_mediumblob = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with LONGBLOB data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_longblob LONGBLOB , col_2_longblob LONGBLOB ,
+PRIMARY KEY (col_1_longblob(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_longblob (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_longblob = REPEAT("a", 4000) , col_2_longblob = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_longblob = REPEAT("c", 4000)
+WHERE col_1_longblob = REPEAT("a", 4000)
+AND col_2_longblob = REPEAT("o", 4000);
+SELECT col_1_longblob = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_longblob = REPEAT("c", 4000)
+AND col_2_longblob = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_longblob = REPEAT("b", 4000);
+SELECT col_1_longblob = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with VARBINARY data type , primary/secondary index and DML ops
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varbinary VARBINARY (4000) ,
+PRIMARY KEY (col_1_varbinary(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varbinary = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with CHAR data type , composite index and DML ops
+CREATE TABLE worklog5743 (col_1_char CHAR (255) , col_2_char CHAR (255),
+col_3_char CHAR (255), col_4_char CHAR (255),col_5_char CHAR (255),
+col_6_char CHAR (255), col_7_char CHAR (255),col_8_char CHAR (255),
+col_9_char CHAR (255), col_10_char CHAR (255),col_11_char CHAR (255),
+col_12_char CHAR (255), col_13_char CHAR (255),col_14_char CHAR (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+# Create index with total prefix index length = 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_char(250),col_2_char(250),
+col_3_char(250),col_4_char(250),col_5_char(250),col_6_char(250),
+col_7_char(250),col_8_char(250),col_9_char(250),col_10_char(250),
+col_11_char(250),col_12_char(250),col_13_char(72)
+);
+INSERT INTO worklog5743 VALUES(REPEAT("b", 255) , REPEAT("p", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+SELECT col_1_char = REPEAT("a", 255) , col_2_char = REPEAT("o", 255) FROM worklog5743;
+UPDATE worklog5743 SET col_1_char = REPEAT("c", 255)
+WHERE col_1_char = REPEAT("a", 255) AND col_2_char = REPEAT("o", 255);
+SELECT col_1_char = REPEAT("c", 255) FROM worklog5743
+WHERE col_1_char = REPEAT("c", 255) AND col_2_char = REPEAT("o", 255);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255),REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_char = REPEAT("b", 255);
+SELECT col_1_char = REPEAT("c", 255) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with BINARY data type , composite index and DML ops
+CREATE TABLE worklog5743 (col_1_binary BINARY (255) , col_2_binary BINARY (255),
+col_3_binary BINARY(255),col_4_binary BINARY (255),col_5_binary BINARY (255),
+col_6_binary BINARY(255),col_7_binary BINARY (255),col_8_binary BINARY (255),
+col_9_binary BINARY(255),col_10_binary BINARY (255),col_11_binary BINARY (255),
+col_12_binary BINARY(255),col_13_binary BINARY (255),col_14_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+# Create index with total prefix index length = 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_binary (250),col_2_binary (250),
+col_3_binary (250),col_4_binary (250),col_5_binary (250),
+col_6_binary (250),col_7_binary (250),col_8_binary (250),
+col_9_binary (250),col_10_binary (250),col_11_binary (250),
+col_12_binary (250),col_13_binary (72)
+);
+INSERT INTO worklog5743 VALUES(REPEAT("b", 255) , REPEAT("p", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+SELECT col_1_binary = REPEAT("a", 255) , col_2_binary = REPEAT("o", 255) FROM worklog5743;
+UPDATE worklog5743 SET col_1_binary = REPEAT("c", 255)
+WHERE col_1_binary = REPEAT("a", 255)
+AND col_2_binary = REPEAT("o", 255);
+SELECT col_1_binary = REPEAT("c", 255) FROM worklog5743
+WHERE col_1_binary = REPEAT("c", 255)
+AND col_2_binary = REPEAT("o", 255);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 255) , REPEAT("o", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255),
+REPEAT("a", 255) , REPEAT("o", 255), REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_binary = REPEAT("b", 255);
+SELECT col_1_binary = REPEAT("c", 255) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with VARCHAR data type , primary/seconday index , DML ops
+# and COMPRESSED row format. KEY_BLOCK_SIZE is varied as 2 , 4 , 8.
+
+# With KEY_BLOCK_SIZE = 2,prefix index limit comes around ~948 for following
+CREATE TABLE worklog5743_key2 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key2 (col_1_varchar (767));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key2;
+UPDATE worklog5743_key2 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key2
+WHERE col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key2;
+DROP TABLE worklog5743_key2;
+
+# With KEY_BLOCK_SIZE = 4,prefix index limit comes around ~1964 for following
+CREATE TABLE worklog5743_key4 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key4 (col_1_varchar (767));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key4;
+UPDATE worklog5743_key4 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key4;
+DROP TABLE worklog5743_key4;
+
+# With KEY_BLOCK_SIZE = 8,prefix index limit comes around ~3072 for following
+CREATE TABLE worklog5743_key8 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key8 (col_1_varchar (767));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743_key8;
+UPDATE worklog5743_key8 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743_key8;
+DROP TABLE worklog5743_key8;
+
+# Prefix index with TEXT data type , primary/seconday index , DML ops
+# and COMPRESSED row format. KEY_BLOCK_SIZE is varied as 2 , 4 , 8.
+
+# With KEY_BLOCK_SIZE = 2,prefix index limit comes around ~948 for following
+CREATE TABLE worklog5743_key2 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key2 (col_1_text (767));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key2;
+UPDATE worklog5743_key2 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key2
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key2;
+DROP TABLE worklog5743_key2;
+
+# With KEY_BLOCK_SIZE = 4,prefix index limit comes around ~1964 for following
+CREATE TABLE worklog5743_key4 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key4 (col_1_text (767));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key4;
+UPDATE worklog5743_key4 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key4;
+DROP TABLE worklog5743_key4;
+
+# With KEY_BLOCK_SIZE = 8,prefix index limit comes around ~3072 for following
+CREATE TABLE worklog5743_key8 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key8 (col_1_text (767));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743_key8;
+UPDATE worklog5743_key8 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743_key8;
+DROP TABLE worklog5743_key8;
+
+# Prefix index with BLOB data type , primary/seconday index , DML ops
+# and COMPRESSED row format. KEY_BLOCK_SIZE is varied as 2 , 4 , 8.
+
+# With KEY_BLOCK_SIZE = 2,prefix index limit comes around ~948 for following
+CREATE TABLE worklog5743_key2 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key2 (col_1_blob (767));
+INSERT INTO worklog5743_key2 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key2;
+UPDATE worklog5743_key2 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key2
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+INSERT INTO worklog5743_key2 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key2 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key2;
+DROP TABLE worklog5743_key2;
+
+# With KEY_BLOCK_SIZE = 4,prefix index limit comes around ~1964 for following
+CREATE TABLE worklog5743_key4 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(1964))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4, engine = innodb;
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key4 (col_1_blob (767));
+INSERT INTO worklog5743_key4 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key4;
+UPDATE worklog5743_key4 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key4
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+INSERT INTO worklog5743_key4 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key4 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key4;
+DROP TABLE worklog5743_key4;
+
+# With KEY_BLOCK_SIZE = 8,prefix index limit comes around ~3072 for following
+CREATE TABLE worklog5743_key8 (
+col_1_blob BLOB (4000) , col_2_blob BLOB (4000) ,
+PRIMARY KEY (col_1_blob(3072))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8, engine = innodb;
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+#CREATE INDEX prefix_idx ON worklog5743_key8 (col_1_blob (767));
+INSERT INTO worklog5743_key8 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_blob = REPEAT("a", 4000) , col_2_blob = REPEAT("o", 4000)
+FROM worklog5743_key8;
+UPDATE worklog5743_key8 SET col_1_blob = REPEAT("c", 4000)
+WHERE col_1_blob = REPEAT("a", 4000) AND col_2_blob = REPEAT("o", 4000);
+SELECT col_1_blob = REPEAT("b", 3500) FROM worklog5743_key8
+WHERE col_1_blob = REPEAT("c", 4000) AND col_2_blob = REPEAT("o", 4000);
+INSERT INTO worklog5743_key8 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743_key8 WHERE col_1_blob = REPEAT("b", 4000);
+SELECT col_1_blob = REPEAT("c", 4000) FROM worklog5743_key8;
+DROP TABLE worklog5743_key8;
+
+
+#------------------------------------------------------------------------------
+# Create multiple prefix index. We can not create prefix index length > 16K
+# as index is written in undo log page which of 16K size.
+# So we can create max 2 prefix index of length 3072 on table
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varchar VARCHAR (4000) ,
+col_3_text TEXT (4000), col_4_blob BLOB (4000), col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+
+# Update reports ER_UNDO_RECORD_TOO_BIG if we create more than 2 indexes.
+# Bug#12547647 - UPDATE LOGGING COULD EXCEED LOG PAGE SIZE
+CREATE INDEX prefix_idx1 ON worklog5743(col_1_varbinary (3072));
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (3072));
+
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+
+# Add 3 more indexes.
+# Update used to hang but now ER_UNDO_RECORD_TOO_BIG is reported;
+# Bug#12547647 - UPDATE LOGGING COULD EXCEED UNDO LOG PAGE SIZE
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (3072));
+CREATE INDEX prefix_idx4 ON worklog5743(col_4_blob (3072));
+CREATE INDEX prefix_idx5 ON worklog5743(col_5_text (3072));
+BEGIN;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SHOW WARNINGS;
+ROLLBACK;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Create multiple prefix index. We can not create prefix index length > 16K as
+# we write in undo log page which of 16K size.
+# so we can create max 5 prefix index of length 3072 on table.
+# Similar to above case but with transactions
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varchar VARCHAR (4000) ,
+col_3_text TEXT (4000), col_4_blob BLOB (4000),col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+
+
+# Update used to hang if we create following 5 indexes. Fixed in;
+# Bug#12547647 - UPDATE LOGGING COULD EXCEED UNDO LOG PAGE SIZE
+CREATE INDEX prefix_idx1 ON worklog5743(col_1_varbinary (3072));
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (3072));
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (3072));
+CREATE INDEX prefix_idx4 ON worklog5743(col_4_blob (3072));
+CREATE INDEX prefix_idx5 ON worklog5743(col_5_text (3072));
+
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+ROLLBACK;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+COMMIT;
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+ROLLBACK;
+BEGIN;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SHOW WARNINGS;
+ROLLBACK;
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with utf8 charset
+# utf8 charcter takes 3 bytes in mysql so prefix index limit is 3072/3 = 1024
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) CHARACTER SET 'utf8',
+col_2_text TEXT (4000) CHARACTER SET 'utf8',
+PRIMARY KEY (col_1_text(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+# Prefix index with utf8 charset + varchar.
+CREATE TABLE worklog5743 (col_1_varchar VARCHAR (4000) CHARACTER SET 'utf8',
+col_2_varchar VARCHAR (4000) CHARACTER SET 'utf8' ,
+PRIMARY KEY (col_1_varchar(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# prefinx index on utf8 charset with transaction
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) ,
+col_2_varchar VARCHAR (4000) CHARACTER SET 'utf8',
+col_3_text TEXT (4000) CHARACTER SET 'utf8',
+col_4_blob BLOB (4000),col_5_text TEXT (4000),
+col_6_varchar VARCHAR (4000), col_7_binary BINARY (255)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+
+
+CREATE INDEX prefix_idx2 ON worklog5743(col_2_varchar (500));
+CREATE INDEX prefix_idx3 ON worklog5743(col_3_text (500));
+
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+ROLLBACK;
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+COMMIT;
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+ROLLBACK;
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000),
+REPEAT("a", 4000) , REPEAT("o", 4000), REPEAT("a", 4000),
+REPEAT("a", 4000) , REPEAT("a", 255)
+);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("b", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with utf8 charset on TEXT data type with actual utf8 character
+# like "स" and "क"
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) CHARACTER SET 'utf8',
+col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(1024))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("स", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1024));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("स", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("क", 4000)
+WHERE col_1_text = REPEAT("स", 4000) AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("क", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("b", 4000);
+SELECT col_1_text = REPEAT("क", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with transaction when 2 client are ruuning there transaction
+# in different sessions.With ISOLATION LEVEL as REPEATABLE READ and
+# READ UNCOMMITTED.
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+
+--connect (con1,localhost,root,,)
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+
+--connect (con2,localhost,root,,)
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+# Uncomment after Bug#12552164 - TRANSACTION CAN NOT SEE OLD VERSION ROWS THAT
+# BEING UPDATED
+#UPDATE worklog5743 SET col_1_varchar = REPEAT("d", 200) WHERE col_1_varchar =
+#REPEAT("a", 200) AND col_2_varchar = REPEAT("o", 200);
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+
+--connection con1
+select @@session.tx_isolation;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
+select @@session.tx_isolation;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
+
+START TRANSACTION;
+
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+
+--connection con2
+COMMIT;
+# Wait for commit
+let $wait_condition=SELECT COUNT(*)=0 FROM information_schema.processlist
+WHERE info='COMMIT';
+--source include/wait_condition.inc
+
+--connection con1
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+COMMIT;
+
+--connection default
+DROP TABLE worklog5743;
+
+
+#------------------------------------------------------------------------------
+# Prefix index with transaction when 2 client are ruuning there transaction
+# in different sessions.With ISOLATION LEVEL as REPEATABLE READ and
+# READ UNCOMMITTED. Same as above case but con2 starts tnx before con1
+
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+
+--connection con1
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+START TRANSACTION;
+
+--connection con2
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("a", 200);
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+COMMIT;
+# Wait for commit
+let $wait_condition=SELECT COUNT(*)=0 FROM information_schema.processlist
+WHERE info='COMMIT';
+--source include/wait_condition.inc
+
+--connection con1
+SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
+select @@session.tx_isolation;
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
+
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+COMMIT;
+
+--connection default
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+
+# Prefix index with transaction when 2 client are ruuning there transaction
+# in different sessions.With ISOLATION LEVEL as REPEATABLE READ and
+# READ UNCOMMITTED. Same as above cases but with ROLLBACK
+
+CREATE TABLE worklog5743 (
+col_1_text TEXT(4000) , col_2_text TEXT(4000) ,
+PRIMARY KEY (col_1_text(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 200) , REPEAT("o", 200));
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+
+--connection con1
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+START TRANSACTION;
+
+--connection con2
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("b", 200) , REPEAT("o", 200));
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("a", 200);
+SELECT col_1_text = REPEAT("a", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+ROLLBACK;
+# Wait for rollback
+let $wait_condition=SELECT COUNT(*)=0 FROM information_schema.processlist
+WHERE info='COMMIT';
+--source include/wait_condition.inc
+--disconnect con2
+
+--connection con1
+SELECT col_1_text = REPEAT("b", 200) , col_2_text = REPEAT("o", 200) FROM
+worklog5743;
+SELECT COUNT(*) FROM worklog5743;
+COMMIT;
+
+--connection default
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Select queries on prefix index column as index will be used in queries.
+# Use few select functions , join condition , subqueries.
+
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+
+# Select with Join
+SELECT tbl1.col_1_varchar = tbl2.col_1_varchar
+FROM worklog5743 tbl1 , worklog5743 tbl2
+WHERE tbl1.col_1_varchar = tbl2.col_1_varchar ;
+
+# Select in subquey
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2) ;
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar NOT IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2) ;
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1 WHERE
+col_1_varchar IN (SELECT tbl2.col_1_varchar FROM worklog5743 tbl2)
+AND col_1_varchar = REPEAT("c", 4000);
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar in (
+SELECT tbl2.col_1_varchar FROM worklog5743 tbl2
+WHERE tbl1.col_1_varchar != tbl2.col_1_varchar
+) ;
+SELECT tbl1.col_1_varchar = REPEAT("c", 4000) FROM worklog5743 tbl1
+WHERE col_1_varchar in (
+SELECT tbl2.col_1_varchar FROM worklog5743 tbl2
+WHERE tbl1.col_1_varchar = tbl2.col_1_varchar
+) ;
+
+# function
+SELECT
+REVERSE(col_1_varchar) = REPEAT("c", 4000) ,
+REVERSE(REVERSE(col_1_varchar)) = REPEAT("c", 4000)
+FROM worklog5743;
+SELECT
+UPPER(col_1_varchar) = REPEAT("c", 4000) ,
+UPPER(col_1_varchar) = REPEAT("C", 4000) ,
+LOWER(UPPER(col_1_varchar)) = REPEAT("c", 4000)
+FROM worklog5743;
+SELECT
+col_1_varchar = REPEAT("c", 4000)
+FROM worklog5743 WHERE col_1_varchar like '%c__%';
+SELECT SUBSTRING(INSERT(col_1_varchar, 1, 4, 'kkkk'),1,10) FROM worklog5743 ;
+SELECT CONCAT(SUBSTRING(col_1_varchar,-5,3),'append') FROM worklog5743 ;
+
+
+DROP TABLE worklog5743;
+
+#------------------------------------------------------------------------------
+# Prefix index with NULL values
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) ,
+col_2_varchar VARCHAR (4000) ,
+UNIQUE INDEX (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 1000),REPEAT("c", 1000)), REPEAT("o", 4000));
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 2000)), REPEAT("o", 4000));
+INSERT INTO worklog5743 VALUES(NULL,NULL);
+INSERT INTO worklog5743 VALUES(NULL,NULL);
+# check IS
+SELECT COLUMN_NAME,INDEX_NAME,SUB_PART,INDEX_TYPE
+FROM INFORMATION_SCHEMA.STATISTICS WHERE table_name = 'worklog5743' ;
+SELECT col_1_varchar FROM worklog5743 WHERE col_1_varchar IS NULL;
+SELECT col_1_varchar = concat(REPEAT("a", 2000),REPEAT("b", 2000))
+FROM worklog5743 WHERE col_1_varchar IS NOT NULL ORDER BY 1;
+
+
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+# Try drop and add secondary prefix index
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+# Drop index
+DROP INDEX prefix_idx ON worklog5743;
+
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+# Again add index
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+
+# Try drop and add primary prefix index
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY `prefix_primary` (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+# Drop index
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000)
+AND col_2_varchar = REPEAT("o", 4000);
+# Again add index
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar(3072));
+
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+--error ER_DUP_ENTRY
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+# -----------------------------------------------------------------------------
+
+# Try drop and add both (primary/secondary) prefix index
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY `prefix_primary` (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+# Drop primary index
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+# Drop secondary index
+DROP INDEX prefix_idx ON worklog5743;
+
+SELECT col_1_varchar = REPEAT("a", 4000) , col_2_varchar = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("c", 4000)
+WHERE col_1_varchar = REPEAT("a", 4000) AND col_2_varchar = REPEAT("o", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varchar = REPEAT("c", 4000) AND col_2_varchar = REPEAT("o", 4000);
+# Again add index
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar(3072));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+--error ER_DUP_ENTRY
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 4000);
+SELECT col_1_varchar = REPEAT("c", 4000) FROM worklog5743;
+DROP TABLE worklog5743;
+
+
+# -----------------------------------------------------------------------------
+# Drop index from differnt session
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR(4000) , col_2_varchar VARCHAR(4000) ,
+PRIMARY KEY (col_1_varchar (3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("c", 3500) , REPEAT("o", 3500));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (3072));
+
+--connection con1
+SELECT col_1_varchar = REPEAT("c", 3500) , col_2_varchar = REPEAT("o", 3500)
+FROM worklog5743;
+
+--connection default
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 3500) , REPEAT("o", 3500));
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("o", 3500);
+COMMIT;
+
+--connection con1
+START TRANSACTION;
+INSERT INTO worklog5743 VALUES(REPEAT("k", 3500),REPEAT("p", 3500));
+# Drop primary index
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+UPDATE worklog5743 SET col_1_varchar = REPEAT("b", 3500)
+WHERE col_1_varchar = REPEAT("a", 3500)
+AND col_2_varchar = REPEAT("o", 3500);
+SELECT col_1_varchar = REPEAT("b", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("o", 3500);
+
+--connection default
+DELETE FROM worklog5743 WHERE col_1_varchar = REPEAT("b", 3500);
+SELECT col_1_varchar = REPEAT("a", 3500) FROM worklog5743
+WHERE col_2_varchar = REPEAT("p", 3500);
+
+--connection con1
+COMMIT;
+--disconnect con1
+
+--connection default
+DROP TABLE worklog5743;
+
+
+
+# -----------------------------------------------------------------------------
+# Create prefix index with length < 3072 , length = 3072 , length > 3072
+# - varbinary data type + secondary index
+CREATE TABLE worklog5743 (
+col_1_varbinary VARBINARY (4000) , col_2_varbinary VARBINARY (4000) ,
+PRIMARY KEY (col_1_varbinary(3072))) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index of 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) , col_2_varbinary = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+# Drop index
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_varbinary = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("b", 4000)
+AND col_2_varbinary = REPEAT("p", 4000);
+
+
+# Again add index length < 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (2000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+# Drop index
+DROP INDEX prefix_idx ON worklog5743;
+
+# Again add index length > 3072.
+# If "innodb_large_prefix" is turned on, than the index prefix larger than 3072
+# will be truncated to 3072. If the table is REDUNDANT and COMPACT, which does
+# not support prefix > 767, the create index will be rejected.
+SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
+CREATE INDEX prefix_idx ON worklog5743(col_1_varbinary (4000));
+SET sql_mode = default;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_varbinary = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_varbinary = REPEAT("c", 4000)
+WHERE col_1_varbinary = REPEAT("a", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_varbinary = REPEAT("c", 4000);
+SELECT col_1_varbinary = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_varbinary = REPEAT("c", 4000)
+AND col_2_varbinary = REPEAT("o", 4000);
+
+
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+# Create prefix index with length < 3072 , length = 3072 , length > 3072
+# text data type + secondary index
+CREATE TABLE worklog5743 (col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(500))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index of 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (3072));
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000)
+FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+# Drop index
+DROP INDEX prefix_idx ON worklog5743;
+SELECT col_1_text = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("b", 4000) AND col_2_text = REPEAT("p", 4000);
+
+# Again add index length < 3072
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (1000));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+# Drop index
+DROP INDEX prefix_idx ON worklog5743;
+
+# Again add index length > 3072.
+# If "innodb_large_prefix" is turned on, than the index prefix larger than 3072
+# will be truncated to 3072. In STRICT mode, the statement will fail with error.
+# If the table is REDUNDANT or COMPACT, which does not support prefix > 767, the create index will be rejected.
+# --error ER_TOO_LONG_KEY
+CREATE INDEX prefix_idx ON worklog5743(col_1_text (4000));
+#CREATE INDEX prefix_idx ON worklog5743(col_1_text (3072));
+SHOW CREATE TABLE worklog5743;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000) AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000) AND col_2_text = REPEAT("o", 4000);
+
+DROP TABLE worklog5743;
+
+
+# -----------------------------------------------------------------------------
+# Create prefix index with length < 948 , length = 948 , length > 948
+# For compressed row type + primary key
+CREATE TABLE worklog5743 (
+col_1_text TEXT (4000) , col_2_text TEXT (4000) ,
+PRIMARY KEY (col_1_text(948))
+) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2, engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000) , REPEAT("o", 4000));
+# Create index of 767
+INSERT INTO worklog5743 VALUES(REPEAT("b", 4000) , REPEAT("p", 4000));
+SELECT col_1_text = REPEAT("a", 4000) , col_2_text = REPEAT("o", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+# Drop index
+#DROP INDEX prefix_idx ON worklog5743;
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+SELECT col_1_text = REPEAT("b", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("b", 4000)
+AND col_2_text = REPEAT("p", 4000);
+
+# Again add index length < 767
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_text (700));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+# Drop index
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+
+# Again add index length > 948. Expect error 'to big row ' due to exceed
+# in key length.
+-- error ER_TOO_BIG_ROWSIZE
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_text (950));
+INSERT INTO worklog5743 VALUES(REPEAT("a", 4000),REPEAT("o", 4000));
+SELECT col_1_text = REPEAT("a", 4000) FROM worklog5743;
+UPDATE worklog5743 SET col_1_text = REPEAT("c", 4000)
+WHERE col_1_text = REPEAT("a", 4000)
+AND col_2_text = REPEAT("o", 4000);
+DELETE FROM worklog5743 WHERE col_1_text = REPEAT("c", 4000);
+SELECT col_1_text = REPEAT("c", 4000) FROM worklog5743
+WHERE col_1_text = REPEAT("c", 4000)
+AND col_2_text = REPEAT("o", 4000);
+
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+# Create prefix index with length < 3072 , length = 3072 , length > 3072
+# data types VARCHAR
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar (900));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+# Again add index length > 3072. Expect error.Length exceeds maximum supported
+# key length
+# Again add index length > 3072.
+# If "innodb_large_prefix" is turned on, than the index prefix larger than 3072
+# will be truncated to 3072. If the table is REDUNDANT and COMPACT, which does
+# not support prefix > 767, the create index will be rejected.
+# Index length is truncated only for 'create index' , but error if we add
+# prefix index with length > 3072
+--error ER_TOO_LONG_KEY
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_varchar (3073));
+DROP TABLE worklog5743;
+
+
+CREATE TABLE worklog5743 (
+col_1_BLOB BLOB (4000) , PRIMARY KEY (col_1_BLOB(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_BLOB (500));
+ALTER TABLE worklog5743 DROP PRIMARY KEY;
+# Negative case
+# Again add index length > 3072. Expect error.Length exceeds maximum supported
+# key length
+# Index length is truncated only for 'create index' , but error if we add
+# prefix index with length > 3072
+--error ER_TOO_LONG_KEY
+ALTER TABLE worklog5743 ADD PRIMARY KEY (col_1_BLOB (3073));
+
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+# Error on adding larger prefix if violates unique index.
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000)
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 1000),REPEAT("c", 1000)),
+REPEAT("o", 4000));
+INSERT INTO worklog5743
+VALUES(concat(REPEAT("a", 2000),REPEAT("b", 2000)), REPEAT("o", 4000));
+--error ER_DUP_ENTRY
+ALTER TABLE worklog5743 ADD PRIMARY KEY `pk_idx` (col_1_varchar(3000));
+DROP TABLE worklog5743;
+
+# -----------------------------------------------------------------------------
+set global innodb_large_prefix=0;
+# Prefix index > 767 is allowed if innodb_large_prefix is set to 1
+--error ER_TOO_LONG_KEY
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(3072))
+) ROW_FORMAT=DYNAMIC, engine = innodb;
+
+
+# -----------------------------------------------------------------------------
+# Backward compatibility test - Index length > 767 is truncated for REDUNDANT
+# and COMPACT
+CREATE TABLE worklog5743 (
+col_1_varchar VARCHAR (4000) , col_2_varchar VARCHAR (4000) ,
+PRIMARY KEY (col_1_varchar(767))
+) engine = innodb;
+INSERT INTO worklog5743 VALUES(REPEAT('a',4000),REPEAT('b',4000));
+# Prefix index > 767 is truncated with REDUNDANT and COMPACT
+--enable_info
+# FIXME: MDEV-15257 Invalid CREATE INDEX fails to report error correctly
+#--error ER_TOO_LONG_KEY
+#CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (1000));
+CREATE INDEX prefix_idx ON worklog5743(col_1_varchar (767));
+ALTER TABLE worklog5743 ROW_FORMAT=REDUNDANT;
+--disable_info
+SHOW CREATE TABLE worklog5743;
+DROP TABLE worklog5743;
+
+SET GLOBAL innodb_large_prefix = @large_prefix_orig;