create table t1 (a int null, v varchar(100)) engine=myisam checksum=0; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 NULL checksum table t1 extended; Table Checksum test.t1 229851577 drop table if exists t1; create table t1 (a int null, v varchar(100)) engine=myisam checksum=1; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 229851577 checksum table t1 extended; Table Checksum test.t1 229851577 drop table if exists t1; create table t1 (a int null, v varchar(100)) engine=innodb checksum=0; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 NULL checksum table t1 extended; Table Checksum test.t1 229851577 drop table t1; create table t1 (a int null, v varchar(100)) engine=maria checksum=0; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 NULL checksum table t1 extended; Table Checksum test.t1 229851577 drop table t1; create table t1 (a int null, v varchar(100)) engine=maria checksum=1; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 229851577 checksum table t1 extended; Table Checksum test.t1 229851577 drop table t1; create table t1 (a int null, v varchar(100)) engine=myisam checksum=1 row_format=fixed; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 3885665021 checksum table t1 quick; Table Checksum test.t1 3885665021 checksum table t1 extended; Table Checksum test.t1 3885665021 drop table if exists t1; create table t1 (a int null, v varchar(100)) engine=innodb checksum=0 row_format=compact; insert into t1 values(null, null), (1, "hello"); checksum table t1; Table Checksum test.t1 229851577 checksum table t1 quick; Table Checksum test.t1 NULL checksum table t1 extended; Table Checksum test.t1 229851577 drop table t1; # # MDEV-17085: CHECKSUM TABLE EXTENDED does not work correctly # CREATE TABLE t1 ( c1 int NOT NULL, c2 int NOT NULL, c4 varchar(20), c5 varchar(20), c6 varchar(20), c7 varchar(20), c8 varchar(20), c9 varchar(20), c10 varchar(20), c11 varchar(20), c12 varchar(20), c13 varchar(20), c14 varchar(20), c15 varchar(20), c16 varchar(20), c19 int NOT NULL, c20 int NOT NULL, c21 varchar(20), c22 VARCHAR(20), c23 varchar(20)); insert into t1 values (5,0,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,0,0,"dog",NULL,NULL); # Important is that checksum is different from following CHECKSUM TABLE t1 EXTENDED; Table Checksum test.t1 2514025256 UPDATE t1 SET c21='cat' WHERE c1=5; # Important is that checksum is different from above CHECKSUM TABLE t1 EXTENDED; Table Checksum test.t1 2326430205 drop table t1; # # End of 5.5 tests # # # MDEV-28020 CHECKSUM TABLE calculates different checksums # create table t1 ( a int, b int as (a) virtual, c text) engine=myisam checksum=1; insert ignore t1 values (1,2,'foo'),(2,3,'bar'); Warnings: Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored checksum table t1 extended; Table Checksum test.t1 4101438232 checksum table t1; Table Checksum test.t1 4101438232 drop table t1; create table t1 ( a int, b int as (a) virtual, c text, key(b)) engine=myisam checksum=1; insert ignore t1 values (1,2,'foo'),(2,3,'bar'); Warnings: Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored checksum table t1 extended; Table Checksum test.t1 4101438232 checksum table t1; Table Checksum test.t1 4101438232 drop table t1; create table t1 ( a int, b int as (a) stored, c text) engine=myisam checksum=1; insert ignore t1 values (1,2,'foo'),(2,3,'bar'); Warnings: Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored Warning 1906 The value specified for generated column 'b' in table 't1' has been ignored checksum table t1 extended; Table Checksum test.t1 2897795735 checksum table t1; Table Checksum test.t1 2897795735 drop table t1; # # End of 10.2 tests #