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-rw-r--r--mysql-test/r/partition_hash.result84
-rw-r--r--mysql-test/r/partition_list.result94
-rw-r--r--mysql-test/r/partition_pruning.result78
-rw-r--r--mysql-test/r/partition_range.result78
-rw-r--r--mysql-test/t/partition_hash.test30
-rw-r--r--mysql-test/t/partition_list.test44
-rw-r--r--mysql-test/t/partition_pruning.test52
-rw-r--r--mysql-test/t/partition_range.test44
-rw-r--r--sql/opt_range.cc7
-rw-r--r--sql/sql_partition.cc11
10 files changed, 521 insertions, 1 deletions
diff --git a/mysql-test/r/partition_hash.result b/mysql-test/r/partition_hash.result
index 08faccd024e..9a82a36d902 100644
--- a/mysql-test/r/partition_hash.result
+++ b/mysql-test/r/partition_hash.result
@@ -1,4 +1,88 @@
drop table if exists t1;
+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;
+a
+select * from t1 where a is null or (a >= 5 and a <= 7);
+a
+NULL
+5
+6
+7
+select * from t1 where a is null;
+a
+NULL
+select * from t1 where a is not null;
+a
+0
+1
+2
+3
+4
+5
+6
+7
+select * from t1 where a >= 1 and a < 3;
+a
+1
+2
+select * from t1 where a >= 3 and a <= 5;
+a
+3
+4
+5
+select * from t1 where a > 2 and a < 4;
+a
+3
+select * from t1 where a > 3 and a <= 6;
+a
+4
+5
+6
+select * from t1 where a > 5;
+a
+6
+7
+select * from t1 where a >= 1 and a <= 5;
+a
+1
+2
+3
+4
+5
+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,p2,p3 ALL NULL NULL NULL NULL 9 Using where
+explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 7 Using where
+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 p0 ALL NULL NULL NULL NULL 3 Using where
+explain partitions select * from t1 where a is not null;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
+explain partitions select * from t1 where a >= 1 and a < 3;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 5 Using where
+explain partitions select * from t1 where a >= 3 and a <= 5;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 4 Using where
+explain partitions select * from t1 where a > 2 and a < 4;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
+explain partitions select * from t1 where a > 3 and a <= 6;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 4 Using where
+explain partitions select * from t1 where a > 5;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
+explain partitions select * from t1 where a >= 1 and a <= 5;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
+drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
diff --git a/mysql-test/r/partition_list.result b/mysql-test/r/partition_list.result
index c722a3c6be3..e64a7a8d154 100644
--- a/mysql-test/r/partition_list.result
+++ b/mysql-test/r/partition_list.result
@@ -1,4 +1,98 @@
drop table if exists t1;
+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;
+a
+0
+1
+select * from t1 where a <= 0;
+a
+0
+select * from t1 where a < 1;
+a
+0
+select * from t1 where a > 0;
+a
+1
+2
+select * from t1 where a > 1;
+a
+2
+select * from t1 where a >= 0;
+a
+0
+1
+2
+select * from t1 where a >= 1;
+a
+1
+2
+select * from t1 where a is null;
+a
+NULL
+select * from t1 where a is not null;
+a
+0
+1
+2
+select * from t1 where a is null or a > 0;
+a
+1
+NULL
+2
+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;
+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 4 Using where
+select * from t1 where a is null;
+a b
+NULL 0
+NULL 1
+explain partitions select * from t1 where a = 2;
+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 4 Using where
+select * from t1 where a = 2;
+a b
+2 0
+2 1
+select * from t1 where a <= 0;
+a b
+0 0
+0 1
+select * from t1 where a < 3;
+a b
+0 0
+0 1
+1 0
+1 1
+2 0
+2 1
+select * from t1 where a >= 1 or a is null;
+a b
+1 0
+1 1
+NULL 0
+2 0
+NULL 1
+2 1
+3 0
+3 1
+drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
diff --git a/mysql-test/r/partition_pruning.result b/mysql-test/r/partition_pruning.result
index ee294242bf7..bf7888bfd99 100644
--- a/mysql-test/r/partition_pruning.result
+++ b/mysql-test/r/partition_pruning.result
@@ -149,6 +149,48 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions select * from t6 where a > 3 and a < 5;
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 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;
+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 t6 where a <= 1;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p1 system NULL NULL NULL NULL 1
+explain partitions select * from t6 where a > 9;
+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 t6 where a >= 9;
+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 t6 where a > 0 and a < 5;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p1,p3 ALL NULL NULL NULL NULL 2 Using where
+explain partitions select * from t6 where a > 5 and a < 12;
+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 t6 where a > 3 and a < 8 ;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p5,p7 system NULL NULL NULL NULL 1
+explain partitions select * from t6 where a >= 0 and a <= 5;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p1,p3,p5 ALL NULL NULL NULL NULL 3 Using where
+explain partitions select * from t6 where a >= 5 and a <= 12;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p5,p7,p9 system NULL NULL NULL NULL 1
+explain partitions select * from t6 where a >= 3 and a <= 8;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL 2 Using where
+explain partitions select * from t6 where a > 3 and a < 5;
+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
create table t7 (a int not null) partition by RANGE(a) (
partition p10 values less than (10),
partition p30 values less than (30),
@@ -184,6 +226,42 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
explain partitions select * from t7 where a > 11 and a < 29;
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 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);
+explain partitions select * from t7 where a < 5;
+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 t7 where a < 10;
+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 t7 where a <= 10;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t7 p10,p30 system NULL NULL NULL NULL 1
+explain partitions select * from t7 where a = 10;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t7 p30 system NULL NULL NULL NULL 1
+explain partitions select * from t7 where a < 90;
+id select_type table partitions type possible_keys key key_len ref rows Extra
+1 SIMPLE t7 p10,p30,p50,p70,p90 ALL NULL NULL NULL NULL 3 Using where
+explain partitions select * from t7 where a = 90;
+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 t7 where a > 90;
+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 t7 where a >= 90;
+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 t7 where a > 11 and a < 29;
+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
create table t8 (a date not null) partition by RANGE(YEAR(a)) (
partition p0 values less than (1980),
partition p1 values less than (1990),
diff --git a/mysql-test/r/partition_range.result b/mysql-test/r/partition_range.result
index 9123c894f32..9812c80040b 100644
--- a/mysql-test/r/partition_range.result
+++ b/mysql-test/r/partition_range.result
@@ -1,4 +1,82 @@
drop table if exists t1;
+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;
+a
+NULL
+select * from t1 where a >= 0;
+a
+0
+1
+select * from t1 where a < 0;
+a
+select * from t1 where a <= 0;
+a
+0
+select * from t1 where a > 1;
+a
+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 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
+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
+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;
+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;
+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,
diff --git a/mysql-test/t/partition_hash.test b/mysql-test/t/partition_hash.test
index 8494de98371..3304f30fb1a 100644
--- a/mysql-test/t/partition_hash.test
+++ b/mysql-test/t/partition_hash.test
@@ -10,6 +10,36 @@ 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
#
CREATE TABLE t1 (
diff --git a/mysql-test/t/partition_list.test b/mysql-test/t/partition_list.test
index e243ec468e1..1e420cfe6ed 100644
--- a/mysql-test/t/partition_list.test
+++ b/mysql-test/t/partition_list.test
@@ -10,6 +10,49 @@ 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
#
CREATE TABLE t1 (
@@ -136,3 +179,4 @@ insert into t1 values (null);
select * from t1;
drop table t1;
+
diff --git a/mysql-test/t/partition_pruning.test b/mysql-test/t/partition_pruning.test
index 976466e1578..dd79e8d3acb 100644
--- a/mysql-test/t/partition_pruning.test
+++ b/mysql-test/t/partition_pruning.test
@@ -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),
diff --git a/mysql-test/t/partition_range.test b/mysql-test/t/partition_range.test
index 38142a9d485..670b9333ab9 100644
--- a/mysql-test/t/partition_range.test
+++ b/mysql-test/t/partition_range.test
@@ -10,6 +10,50 @@ 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
#
CREATE TABLE t1 (
diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index d62cb134209..956e23a09aa 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -3203,7 +3203,12 @@ 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;
diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc
index 44c0b8ffcd9..3f1572ee676 100644
--- a/sql/sql_partition.cc
+++ b/sql/sql_partition.cc
@@ -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)