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BUG20733: Bug in partition pruning with zerofill field
Problem was with handling NULL values in ranges mysql-test/r/partition_hash.result: New partition pruning test cases mysql-test/r/partition_list.result: New partition pruning test cases mysql-test/r/partition_pruning.result: New partition pruning test cases mysql-test/r/partition_range.result: New partition pruning test cases mysql-test/t/partition_hash.test: New partition pruning test cases mysql-test/t/partition_list.test: New partition pruning test cases mysql-test/t/partition_pruning.test: New partition pruning test cases mysql-test/t/partition_range.test: New partition pruning test cases sql/opt_range.cc: Added comment sql/sql_partition.cc: Partition pruning didn't handle ranges with NULL values in a proper manner
This commit is contained in:
unknown
@ -1,4 +1,88 @@
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drop table if exists t1;
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create table t1 (a int unsigned)
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partition by hash(a div 2)
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partitions 4;
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insert into t1 values (null),(0),(1),(2),(3),(4),(5),(6),(7);
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select * from t1 where a < 0;
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a
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select * from t1 where a is null or (a >= 5 and a <= 7);
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a
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NULL
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5
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6
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7
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select * from t1 where a is null;
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a
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NULL
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select * from t1 where a is not null;
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a
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0
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1
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2
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3
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4
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5
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6
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7
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select * from t1 where a >= 1 and a < 3;
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a
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1
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2
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select * from t1 where a >= 3 and a <= 5;
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a
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3
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4
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5
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select * from t1 where a > 2 and a < 4;
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a
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3
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select * from t1 where a > 3 and a <= 6;
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a
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4
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5
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6
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select * from t1 where a > 5;
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a
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6
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7
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select * from t1 where a >= 1 and a <= 5;
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a
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1
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2
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3
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4
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5
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explain partitions select * from t1 where a < 0;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 7 Using where
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explain partitions select * from t1 where a is null;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
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explain partitions select * from t1 where a is not null;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a >= 1 and a < 3;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 5 Using where
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explain partitions select * from t1 where a >= 3 and a <= 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 4 Using where
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explain partitions select * from t1 where a > 2 and a < 4;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
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explain partitions select * from t1 where a > 3 and a <= 6;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 4 Using where
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explain partitions select * from t1 where a > 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a >= 1 and a <= 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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drop table t1;
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CREATE TABLE t1 (
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a int not null,
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b int not null,
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@ -1,4 +1,98 @@
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drop table if exists t1;
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create table t1 (a int unsigned)
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partition by list (a)
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(partition p0 values in (0),
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partition p1 values in (1),
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partition pnull values in (null),
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partition p2 values in (2));
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insert into t1 values (null),(0),(1),(2);
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select * from t1 where a < 2;
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a
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0
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1
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select * from t1 where a <= 0;
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a
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0
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select * from t1 where a < 1;
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a
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0
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select * from t1 where a > 0;
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a
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1
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2
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select * from t1 where a > 1;
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a
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2
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select * from t1 where a >= 0;
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a
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0
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1
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2
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select * from t1 where a >= 1;
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a
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1
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2
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select * from t1 where a is null;
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a
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NULL
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select * from t1 where a is not null;
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a
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0
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1
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2
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select * from t1 where a is null or a > 0;
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a
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1
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NULL
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2
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drop table t1;
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create table t1 (a int unsigned, b int)
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partition by list (a)
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subpartition by hash (b)
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subpartitions 2
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(partition p0 values in (0),
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partition p1 values in (1),
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partition pnull values in (null, 2),
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partition p3 values in (3));
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insert into t1 values (0,0),(0,1),(1,0),(1,1),(null,0),(null,1);
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insert into t1 values (2,0),(2,1),(3,0),(3,1);
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explain partitions select * from t1 where a is null;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 4 Using where
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select * from t1 where a is null;
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a b
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NULL 0
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NULL 1
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explain partitions select * from t1 where a = 2;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 4 Using where
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select * from t1 where a = 2;
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a b
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2 0
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2 1
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select * from t1 where a <= 0;
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a b
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0 0
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0 1
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select * from t1 where a < 3;
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a b
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0 0
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0 1
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1 0
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1 1
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2 0
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2 1
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select * from t1 where a >= 1 or a is null;
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a b
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1 0
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1 1
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NULL 0
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2 0
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NULL 1
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2 1
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3 0
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3 1
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drop table t1;
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CREATE TABLE t1 (
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a int not null,
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b int not null,
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@ -149,6 +149,48 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
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explain partitions select * from t6 where a > 3 and a < 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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drop table t6;
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create table t6 (a int unsigned not null) partition by LIST(a) (
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partition p1 values in (1),
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partition p3 values in (3),
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partition p5 values in (5),
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partition p7 values in (7),
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partition p9 values in (9)
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);
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insert into t6 values (1),(3),(5);
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explain partitions select * from t6 where a < 1;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t6 where a <= 1;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p1 system NULL NULL NULL NULL 1
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explain partitions select * from t6 where a > 9;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t6 where a >= 9;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t6 where a > 0 and a < 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p1,p3 ALL NULL NULL NULL NULL 2 Using where
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explain partitions select * from t6 where a > 5 and a < 12;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t6 where a > 3 and a < 8 ;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p5,p7 system NULL NULL NULL NULL 1
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explain partitions select * from t6 where a >= 0 and a <= 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p1,p3,p5 ALL NULL NULL NULL NULL 3 Using where
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explain partitions select * from t6 where a >= 5 and a <= 12;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p5,p7,p9 system NULL NULL NULL NULL 1
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explain partitions select * from t6 where a >= 3 and a <= 8;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL 2 Using where
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explain partitions select * from t6 where a > 3 and a < 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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create table t7 (a int not null) partition by RANGE(a) (
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partition p10 values less than (10),
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partition p30 values less than (30),
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@ -184,6 +226,42 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
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explain partitions select * from t7 where a > 11 and a < 29;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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drop table t7;
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create table t7 (a int unsigned not null) partition by RANGE(a) (
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partition p10 values less than (10),
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partition p30 values less than (30),
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partition p50 values less than (50),
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partition p70 values less than (70),
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partition p90 values less than (90)
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);
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insert into t7 values (10),(30),(50);
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explain partitions select * from t7 where a < 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t7 where a < 10;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t7 where a <= 10;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t7 p10,p30 system NULL NULL NULL NULL 1
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explain partitions select * from t7 where a = 10;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t7 p30 system NULL NULL NULL NULL 1
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explain partitions select * from t7 where a < 90;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t7 p10,p30,p50,p70,p90 ALL NULL NULL NULL NULL 3 Using where
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explain partitions select * from t7 where a = 90;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t7 where a > 90;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t7 where a >= 90;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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explain partitions select * from t7 where a > 11 and a < 29;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
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create table t8 (a date not null) partition by RANGE(YEAR(a)) (
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partition p0 values less than (1980),
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partition p1 values less than (1990),
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@ -1,4 +1,82 @@
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drop table if exists t1;
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create table t1 (a int unsigned)
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partition by range (a)
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(partition pnull values less than (0),
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partition p0 values less than (1),
|
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partition p1 values less than(2));
|
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insert into t1 values (null),(0),(1);
|
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select * from t1 where a is null;
|
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a
|
||||
NULL
|
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select * from t1 where a >= 0;
|
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a
|
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0
|
||||
1
|
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select * from t1 where a < 0;
|
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a
|
||||
select * from t1 where a <= 0;
|
||||
a
|
||||
0
|
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select * from t1 where a > 1;
|
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a
|
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explain partitions select * from t1 where a is null;
|
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id select_type table partitions type possible_keys key key_len ref rows Extra
|
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1 SIMPLE t1 pnull system NULL NULL NULL NULL 1
|
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explain partitions select * from t1 where a >= 0;
|
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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
|
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explain partitions select * from t1 where a < 0;
|
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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;
|
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id select_type table partitions type possible_keys key key_len ref rows Extra
|
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1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 2 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
|
||||
drop table t1;
|
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create table t1 (a int unsigned, b int unsigned)
|
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partition by range (a)
|
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subpartition by hash (b)
|
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subpartitions 2
|
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(partition pnull values less than (0),
|
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partition p0 values less than (1),
|
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partition p1 values less than(2));
|
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insert into t1 values (null,0),(null,1),(0,0),(0,1),(1,0),(1,1);
|
||||
select * from t1 where a is null;
|
||||
a b
|
||||
NULL 0
|
||||
NULL 1
|
||||
select * from t1 where a >= 0;
|
||||
a b
|
||||
0 0
|
||||
0 1
|
||||
1 0
|
||||
1 1
|
||||
select * from t1 where a < 0;
|
||||
a b
|
||||
select * from t1 where a <= 0;
|
||||
a b
|
||||
0 0
|
||||
0 1
|
||||
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
|
||||
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
|
||||
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
|
||||
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
|
||||
explain partitions select * from t1 where a > 1;
|
||||
id select_type table partitions type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 2 Using where
|
||||
drop table t1;
|
||||
CREATE TABLE t1 (
|
||||
a int not null,
|
||||
b int not null,
|
||||
|
||||
@ -9,6 +9,36 @@
|
||||
drop table if exists t1;
|
||||
--enable_warnings
|
||||
|
||||
#
|
||||
# More partition pruning tests, especially on interval walking
|
||||
#
|
||||
create table t1 (a int unsigned)
|
||||
partition by hash(a div 2)
|
||||
partitions 4;
|
||||
insert into t1 values (null),(0),(1),(2),(3),(4),(5),(6),(7);
|
||||
select * from t1 where a < 0;
|
||||
select * from t1 where a is null or (a >= 5 and a <= 7);
|
||||
select * from t1 where a is null;
|
||||
select * from t1 where a is not null;
|
||||
select * from t1 where a >= 1 and a < 3;
|
||||
select * from t1 where a >= 3 and a <= 5;
|
||||
select * from t1 where a > 2 and a < 4;
|
||||
select * from t1 where a > 3 and a <= 6;
|
||||
select * from t1 where a > 5;
|
||||
select * from t1 where a >= 1 and a <= 5;
|
||||
explain partitions select * from t1 where a < 0;
|
||||
explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
|
||||
explain partitions select * from t1 where a is null;
|
||||
explain partitions select * from t1 where a is not null;
|
||||
explain partitions select * from t1 where a >= 1 and a < 3;
|
||||
explain partitions select * from t1 where a >= 3 and a <= 5;
|
||||
explain partitions select * from t1 where a > 2 and a < 4;
|
||||
explain partitions select * from t1 where a > 3 and a <= 6;
|
||||
explain partitions select * from t1 where a > 5;
|
||||
explain partitions select * from t1 where a >= 1 and a <= 5;
|
||||
|
||||
drop table t1;
|
||||
|
||||
#
|
||||
# Partition by hash, basic
|
||||
#
|
||||
|
||||
@ -9,6 +9,49 @@
|
||||
drop table if exists t1;
|
||||
--enable_warnings
|
||||
|
||||
#
|
||||
# Bug 20733: Zerofill columns gives wrong result with partitioned tables
|
||||
#
|
||||
create table t1 (a int unsigned)
|
||||
partition by list (a)
|
||||
(partition p0 values in (0),
|
||||
partition p1 values in (1),
|
||||
partition pnull values in (null),
|
||||
partition p2 values in (2));
|
||||
|
||||
insert into t1 values (null),(0),(1),(2);
|
||||
select * from t1 where a < 2;
|
||||
select * from t1 where a <= 0;
|
||||
select * from t1 where a < 1;
|
||||
select * from t1 where a > 0;
|
||||
select * from t1 where a > 1;
|
||||
select * from t1 where a >= 0;
|
||||
select * from t1 where a >= 1;
|
||||
select * from t1 where a is null;
|
||||
select * from t1 where a is not null;
|
||||
select * from t1 where a is null or a > 0;
|
||||
drop table t1;
|
||||
|
||||
create table t1 (a int unsigned, b int)
|
||||
partition by list (a)
|
||||
subpartition by hash (b)
|
||||
subpartitions 2
|
||||
(partition p0 values in (0),
|
||||
partition p1 values in (1),
|
||||
partition pnull values in (null, 2),
|
||||
partition p3 values in (3));
|
||||
insert into t1 values (0,0),(0,1),(1,0),(1,1),(null,0),(null,1);
|
||||
insert into t1 values (2,0),(2,1),(3,0),(3,1);
|
||||
|
||||
explain partitions select * from t1 where a is null;
|
||||
select * from t1 where a is null;
|
||||
explain partitions select * from t1 where a = 2;
|
||||
select * from t1 where a = 2;
|
||||
select * from t1 where a <= 0;
|
||||
select * from t1 where a < 3;
|
||||
select * from t1 where a >= 1 or a is null;
|
||||
drop table t1;
|
||||
|
||||
#
|
||||
# Test ordinary list partitioning that it works ok
|
||||
#
|
||||
@ -136,3 +179,4 @@ insert into t1 values (null);
|
||||
select * from t1;
|
||||
drop table t1;
|
||||
|
||||
|
||||
|
||||
@ -137,6 +137,32 @@ explain partitions select * from t6 where a >= 3 and a <= 8;
|
||||
|
||||
explain partitions select * from t6 where a > 3 and a < 5;
|
||||
|
||||
drop table t6;
|
||||
|
||||
create table t6 (a int unsigned not null) partition by LIST(a) (
|
||||
partition p1 values in (1),
|
||||
partition p3 values in (3),
|
||||
partition p5 values in (5),
|
||||
partition p7 values in (7),
|
||||
partition p9 values in (9)
|
||||
);
|
||||
insert into t6 values (1),(3),(5);
|
||||
|
||||
explain partitions select * from t6 where a < 1;
|
||||
explain partitions select * from t6 where a <= 1;
|
||||
explain partitions select * from t6 where a > 9;
|
||||
explain partitions select * from t6 where a >= 9;
|
||||
|
||||
explain partitions select * from t6 where a > 0 and a < 5;
|
||||
explain partitions select * from t6 where a > 5 and a < 12;
|
||||
explain partitions select * from t6 where a > 3 and a < 8 ;
|
||||
|
||||
explain partitions select * from t6 where a >= 0 and a <= 5;
|
||||
explain partitions select * from t6 where a >= 5 and a <= 12;
|
||||
explain partitions select * from t6 where a >= 3 and a <= 8;
|
||||
|
||||
explain partitions select * from t6 where a > 3 and a < 5;
|
||||
|
||||
# RANGE(field) partitioning, interval analysis.
|
||||
create table t7 (a int not null) partition by RANGE(a) (
|
||||
partition p10 values less than (10),
|
||||
@ -162,6 +188,32 @@ explain partitions select * from t7 where a >= 90;
|
||||
# misc intervals
|
||||
explain partitions select * from t7 where a > 11 and a < 29;
|
||||
|
||||
drop table t7;
|
||||
|
||||
create table t7 (a int unsigned not null) partition by RANGE(a) (
|
||||
partition p10 values less than (10),
|
||||
partition p30 values less than (30),
|
||||
partition p50 values less than (50),
|
||||
partition p70 values less than (70),
|
||||
partition p90 values less than (90)
|
||||
);
|
||||
insert into t7 values (10),(30),(50);
|
||||
|
||||
# leftmost intervals
|
||||
explain partitions select * from t7 where a < 5;
|
||||
explain partitions select * from t7 where a < 10;
|
||||
explain partitions select * from t7 where a <= 10;
|
||||
explain partitions select * from t7 where a = 10;
|
||||
|
||||
#rightmost intervals
|
||||
explain partitions select * from t7 where a < 90;
|
||||
explain partitions select * from t7 where a = 90;
|
||||
explain partitions select * from t7 where a > 90;
|
||||
explain partitions select * from t7 where a >= 90;
|
||||
|
||||
# misc intervals
|
||||
explain partitions select * from t7 where a > 11 and a < 29;
|
||||
|
||||
# LIST(monontonic_func) partitioning
|
||||
create table t8 (a date not null) partition by RANGE(YEAR(a)) (
|
||||
partition p0 values less than (1980),
|
||||
|
||||
@ -9,6 +9,50 @@
|
||||
drop table if exists t1;
|
||||
--enable_warnings
|
||||
|
||||
#
|
||||
# More checks for partition pruning
|
||||
#
|
||||
create table t1 (a int unsigned)
|
||||
partition by range (a)
|
||||
(partition pnull values less than (0),
|
||||
partition p0 values less than (1),
|
||||
partition p1 values less than(2));
|
||||
insert into t1 values (null),(0),(1);
|
||||
|
||||
select * from t1 where a is null;
|
||||
select * from t1 where a >= 0;
|
||||
select * from t1 where a < 0;
|
||||
select * from t1 where a <= 0;
|
||||
select * from t1 where a > 1;
|
||||
explain partitions select * from t1 where a is null;
|
||||
explain partitions select * from t1 where a >= 0;
|
||||
explain partitions select * from t1 where a < 0;
|
||||
explain partitions select * from t1 where a <= 0;
|
||||
explain partitions select * from t1 where a > 1;
|
||||
drop table t1;
|
||||
|
||||
create table t1 (a int unsigned, b int unsigned)
|
||||
partition by range (a)
|
||||
subpartition by hash (b)
|
||||
subpartitions 2
|
||||
(partition pnull values less than (0),
|
||||
partition p0 values less than (1),
|
||||
partition p1 values less than(2));
|
||||
insert into t1 values (null,0),(null,1),(0,0),(0,1),(1,0),(1,1);
|
||||
|
||||
select * from t1 where a is null;
|
||||
select * from t1 where a >= 0;
|
||||
select * from t1 where a < 0;
|
||||
select * from t1 where a <= 0;
|
||||
select * from t1 where a > 1;
|
||||
explain partitions select * from t1 where a is null;
|
||||
explain partitions select * from t1 where a >= 0;
|
||||
explain partitions select * from t1 where a < 0;
|
||||
explain partitions select * from t1 where a <= 0;
|
||||
explain partitions select * from t1 where a > 1;
|
||||
|
||||
drop table t1;
|
||||
|
||||
#
|
||||
# Partition by range, basic
|
||||
#
|
||||
|
||||
@ -3204,6 +3204,11 @@ static bool create_partition_index_description(PART_PRUNE_PARAM *ppar)
|
||||
ppar->is_part_keypart[part]= !in_subpart_fields;
|
||||
ppar->is_subpart_keypart[part]= in_subpart_fields;
|
||||
|
||||
/*
|
||||
Check if this was last field in this array, in this case we
|
||||
switch to subpartitioning fields. (This will only happens if
|
||||
there are subpartitioning fields to cater for).
|
||||
*/
|
||||
if (!*(++field))
|
||||
{
|
||||
field= part_info->subpart_field_array;
|
||||
|
||||
@ -2415,6 +2415,10 @@ uint32 get_list_array_idx_for_endpoint(partition_info *part_info,
|
||||
bool unsigned_flag= part_info->part_expr->unsigned_flag;
|
||||
DBUG_ENTER("get_list_array_idx_for_endpoint");
|
||||
|
||||
if (part_info->part_expr->null_value)
|
||||
{
|
||||
DBUG_RETURN(0);
|
||||
}
|
||||
if (unsigned_flag)
|
||||
part_func_value-= 0x8000000000000000ULL;
|
||||
DBUG_ASSERT(part_info->no_list_values);
|
||||
@ -2539,6 +2543,13 @@ uint32 get_partition_id_range_for_endpoint(partition_info *part_info,
|
||||
bool unsigned_flag= part_info->part_expr->unsigned_flag;
|
||||
DBUG_ENTER("get_partition_id_range_for_endpoint");
|
||||
|
||||
if (part_info->part_expr->null_value)
|
||||
{
|
||||
uint32 ret_part_id= 0;
|
||||
if (!left_endpoint && include_endpoint)
|
||||
ret_part_id= 1;
|
||||
DBUG_RETURN(ret_part_id);
|
||||
}
|
||||
if (unsigned_flag)
|
||||
part_func_value-= 0x8000000000000000ULL;
|
||||
while (max_part_id > min_part_id)
|
||||
|
||||
Reference in New Issue
Block a user