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CREATE TABLE t1(
a INT AUTO_INCREMENT PRIMARY KEY,
b CHAR(1),
c INT,
INDEX(b))
ENGINE=InnoDB STATS_PERSISTENT=0;
SET GLOBAL innodb_change_buffering_debug = 1;
INSERT INTO t1 VALUES(0,'x',1);
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
check table t1;
Table Op Msg_type Msg_text
test.t1 check Warning InnoDB: Index 'b' contains #### entries, should be 4096.
test.t1 check error Corrupt
SET GLOBAL innodb_fast_shutdown=0;
DROP TABLE t1;
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