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73f10f0662
cant find record Some engines return data for the record. Despite the fact that the null bit is set for some fields, their old value may still in the row. This can happen when unpacking an AI from the binlog on top of a previous record in which a field is set to NULL, which previously contained a value. Ultimately, this may cause the comparison of records to fail when the slave is doing an index or range scan. We fix this by deploying a call to reset() for each field that is set to null while unpacking a row from the binary log. Furthermore, we also add mixed mode test case to cover the scenario where updating and setting a field to null through a Query event and later searching it through a rows event will succeed. Finally, we also change the reset() method, from Field_bit class, so that it takes into account bits stored among the null bits and not only the ones stored in the record. mysql-test/suite/rpl/t/rpl_set_null_innodb.test: InnoDB test. mysql-test/suite/rpl/t/rpl_set_null_myisam.test: MyISAM test. mysql-test/suite/rpl_ndb/t/rpl_ndb_set_null.test: NDB test. sql/field.h: Changed reset so that it also clears the bits among the null_bits for the Field_bit class. sql/rpl_record.cc: Resetting field after setting it to null when unpacking row.
35 lines
994 B
Text
35 lines
994 B
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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CREATE TABLE t1 (c1 BIT, c2 INT) Engine=InnoDB;
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INSERT INTO `t1` VALUES ( 1, 1 );
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UPDATE t1 SET c1=NULL where c2=1;
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Comparing tables master:test.t1 and slave:test.t1
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DELETE FROM t1 WHERE c2=1 LIMIT 1;
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Comparing tables master:test.t1 and slave:test.t1
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DROP TABLE t1;
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stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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CREATE TABLE t1 (c1 CHAR) Engine=InnoDB;
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INSERT INTO t1 ( c1 ) VALUES ( 'w' ) ;
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SELECT * FROM t1;
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c1
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w
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UPDATE t1 SET c1=NULL WHERE c1='w';
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Comparing tables master:test.t1 and slave:test.t1
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DELETE FROM t1 LIMIT 2;
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Comparing tables master:test.t1 and slave:test.t1
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DROP TABLE t1;
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