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Bug#55146 Assertion `m_part_spec.start_part == m_part_spec.end_part' in index_read_idx_map

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As we check for the impossible partitions earlier, it's possible that we don't find any
              suitable partitions at all. So this assertion just has to be corrected for this case.
      
per-file comments:
mysql-test/r/partition_innodb.result
Bug#55146      Assertion `m_part_spec.start_part == m_part_spec.end_part' in index_read_idx_map
        test result updated.

mysql-test/t/partition_innodb.test
Bug#55146      Assertion `m_part_spec.start_part == m_part_spec.end_part' in index_read_idx_map
        test case added.

sql/ha_partition.cc
Bug#55146      Assertion `m_part_spec.start_part == m_part_spec.end_part' in index_read_idx_map
        Assertion changed to '>=' as the  prune_partition_set() in the get_partition_set() can
        do start_part= end_part+1 if no possible partitions were found.
This commit is contained in:
Alexey Botchkov
2010-08-12 15:59:02 +05:00
parent 4bf81165e4
commit 6d14cae604
3 changed files with 25 additions and 2 deletions
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6
mysql-test/r/partition_innodb.result
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@ -387,3 +387,9 @@ a b
3 2003-03-03
COMMIT;
DROP TABLE t1;
CREATE TABLE t1 (i1 int NOT NULL primary key, f1 int) ENGINE = InnoDB
PARTITION BY HASH(i1) PARTITIONS 2;
INSERT INTO t1 VALUES (1,1), (2,2);
SELECT * FROM t1 WHERE i1 = ( SELECT i1 FROM t1 WHERE f1=0 LIMIT 1 );
i1 f1
DROP TABLE t1;