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45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
#
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# Test bugs in the MyISAM code with blobs
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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# Bug #2159 (Problem with update of blob to > 16M)
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CREATE TABLE t1 (data LONGBLOB) ENGINE=myisam;
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INSERT INTO t1 (data) VALUES (NULL);
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UPDATE t1 set data=repeat('a',18*1024*1024);
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select length(data) from t1;
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delete from t1 where left(data,1)='a';
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check table t1;
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truncate table t1;
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INSERT INTO t1 (data) VALUES (repeat('a',1*1024*1024));
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INSERT INTO t1 (data) VALUES (repeat('b',16*1024*1024-1024));
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delete from t1 where left(data,1)='b';
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check table t1;
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# now we have two blocks in the table, first is a 1M record and second is
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# a 16M delete block.
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UPDATE t1 set data=repeat('c',17*1024*1024);
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check table t1;
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delete from t1 where left(data,1)='c';
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check table t1;
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INSERT INTO t1 set data=repeat('a',18*1024*1024);
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select length(data) from t1;
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SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
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alter table t1 modify data blob;
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select length(data) from t1;
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drop table t1;
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CREATE TABLE t1 (data BLOB) ENGINE=myisam;
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INSERT INTO t1 (data) VALUES (NULL);
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UPDATE IGNORE t1 set data=repeat('a',18*1024*1024);
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select length(data) from t1;
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drop table t1;
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# End of 4.1 tests
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