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| author | Mattias Jonsson <mattiasj@mysql.com> | 2008-07-07 22:42:19 +0200 |
|---|---|---|
| committer | Mattias Jonsson <mattiasj@mysql.com> | 2008-07-07 22:42:19 +0200 |
| commit | d11d5cfca87f25cad0f5b0af90616afe9290dece (patch) | |
| tree | e1224dcd11282eb716f4192d492e0370811a9c4e /mysql-test/r/partition_range.result | |
| parent | 50853ac31a5f158d02c986a9eec5144cf20d00b9 (diff) | |
| download | mariadb-git-d11d5cfca87f25cad0f5b0af90616afe9290dece.tar.gz | |
Bug#35745: SELECT COUNT(*) is not correct for some partitioned tables.
problem was that ha_partition::records was not implemented, thus
using the default handler::records, which is not correct if the engine
does not support HA_STATS_RECORDS_IS_EXACT.
Solution was to implement ha_partition::records as a wrapper around
the underlying partitions records.
The rows column in explain partitions will now include the total
number of records in the partitioned table.
(recommit after removing out-commented code)
Diffstat (limited to 'mysql-test/r/partition_range.result')
| -rw-r--r-- | mysql-test/r/partition_range.result | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mysql-test/r/partition_range.result b/mysql-test/r/partition_range.result index b027ef088ae..e4e5a748b0d 100644 --- a/mysql-test/r/partition_range.result +++ b/mysql-test/r/partition_range.result @@ -57,13 +57,13 @@ id select_type table partitions type possible_keys key key_len ref rows Extra 1 SIMPLE t1 pnull system NULL NULL NULL NULL 1 explain partitions select * from t1 where a >= 0; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 3 Using where explain partitions select * from t1 where a < 0; id select_type table partitions type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables explain partitions select * from t1 where a <= 0; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 3 Using where explain partitions select * from t1 where a > 1; id select_type table partitions type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables @@ -96,16 +96,16 @@ select * from t1 where a > 1; a b explain partitions select * from t1 where a is null; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 6 Using where explain partitions select * from t1 where a >= 0; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 4 Using where +1 SIMPLE t1 p0_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 6 Using where explain partitions select * from t1 where a < 0; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 6 Using where explain partitions select * from t1 where a <= 0; id select_type table partitions type possible_keys key key_len ref rows Extra -1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL 4 Using where +1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL 6 Using where explain partitions select * from t1 where a > 1; id select_type table partitions type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables |