Edit File: myisam-blob.result
drop table if exists t1; CREATE TABLE t1 (data LONGBLOB) ENGINE=myisam; INSERT INTO t1 (data) VALUES (NULL); UPDATE t1 set data=repeat('a',18*1024*1024); select length(data) from t1; length(data) 18874368 delete from t1 where left(data,1)='a'; check table t1; Table Op Msg_type Msg_text test.t1 check status OK truncate table t1; INSERT INTO t1 (data) VALUES (repeat('a',1*1024*1024)); INSERT INTO t1 (data) VALUES (repeat('b',16*1024*1024-1024)); delete from t1 where left(data,1)='b'; check table t1; Table Op Msg_type Msg_text test.t1 check status OK UPDATE t1 set data=repeat('c',17*1024*1024); check table t1; Table Op Msg_type Msg_text test.t1 check status OK delete from t1 where left(data,1)='c'; check table t1; Table Op Msg_type Msg_text test.t1 check status OK INSERT INTO t1 set data=repeat('a',18*1024*1024); select length(data) from t1; length(data) 18874368 alter table t1 modify data blob; select length(data) from t1; length(data) 0 drop table t1; CREATE TABLE t1 (data BLOB) ENGINE=myisam; INSERT INTO t1 (data) VALUES (NULL); UPDATE t1 set data=repeat('a',18*1024*1024); Warnings: Warning 1265 Data truncated for column 'data' at row 1 select length(data) from t1; length(data) 65535 drop table t1;
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