BUG#18198: Partition function handling

Review fixes


mysql-test/r/partition_range.result:
  New test cases
mysql-test/t/partition_hash.test:
  New test cases
mysql-test/t/partition_range.test:
  New test cases
sql/item.h:
  Review fixes
sql/partition_info.cc:
  Review fixes
sql/sql_partition.cc:
  Review fixes

1 files changed, 43 insertions, 0 deletions

diff --git a/mysql-test/t/partition_range.test b/mysql-test/t/partition_range.test
index 8cf2313e39c..ead971c189e 100644
--- a/mysql-test/t/partition_range.test
+++ b/mysql-test/t/partition_range.test
@@ -10,6 +10,49 @@ drop table if exists t1;
 --enable_warnings
 
 #
+# BUG 18198: Various tests for partition functions
+#
+create table t1 (a varchar(10) charset latin1 collate latin1_bin, b int)
+partition by range (length(a) * b)
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 2),('a',3);
+drop table t1;
+
+create table t1 (a varchar(10) charset latin1 collate latin1_bin, b int)
+partition by range (b* length(a) * b)
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 2),('a',3);
+drop table t1;
+
+create table t1 (a varchar(10) charset latin1 collate latin1_bin,
+                 b varchar(10) charset latin1 collate latin1_bin)
+partition by range (length(b) * length(a))
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 'b  '),('a','b');
+drop table t1;
+
+create table t1 (a varchar(10) charset latin1 collate latin1_bin,
+                 b varchar(10) charset latin1 collate latin1_bin)
+partition by range (length(a) * length(b))
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 'b  '),('a','b');
+drop table t1;
+
+create table t1 (a varchar(10) charset latin1 collate latin1_bin,
+                 b varchar(10) charset latin1 collate latin1_bin, c int)
+partition by range (length(a) * c)
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 'b  ', 2),('a','b', 3);
+drop table t1;
+
+create table t1 (a varchar(10) charset latin1 collate latin1_bin,
+                 b varchar(10) charset latin1 collate latin1_bin, c int)
+partition by range (c * length(a))
+(partition p0 values less than (2), partition p1 values less than (10));
+insert into t1 values ('a ', 'b  ', 2),('a','b', 3);
+drop table t1;
+
+#
 # More checks for partition pruning
 #
 create table t1 (a int unsigned)