From: Date: January 27 2007 2:10am
Subject: bk commit into 5.0 tree (igor:1.2391) BUG#24420
List-Archive: http://lists.mysql.com/commits/18891
X-Bug: 24420
Message-Id: <20070127011051.EF60D11824A@olga.mysql.com>

Below is the list of changes that have just been committed into a local
5.0 repository of igor. When igor does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
For information on how to access the public repository
see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet@stripped, 2007-01-26 17:10:45-08:00, igor@stripped +3 -0
  Fixed bug #24420.
  Objects of the classes Item_func_is_not_null_test and Item_func_trig_cond
  must be transparent for the method Item::split_sum_func2 as these classes
  are pure helpers. It means that the method Item::split_sum_func2 should
  look at those objects as at pure wrappers.

  mysql-test/r/subselect3.result@stripped, 2007-01-26 17:10:42-08:00, igor@stripped +16 -0
    Added a test case for bug #24420.
    

  mysql-test/t/subselect3.test@stripped, 2007-01-26 17:10:42-08:00, igor@stripped +17 -0
    Added a test case for bug #24420.

  sql/item.cc@stripped, 2007-01-26 17:10:43-08:00, igor@stripped +4 -1
    Fixed bug #24420.
    Objects of the classes Item_func_is_not_null_test and Item_func_trig_cond
    must be transparent for the method Item::split_sum_func2 as these classes
    are pure helpers. It means that the method Item::split_sum_func2 should
    look at those objects as at pure wrappers.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	igor
# Host:	olga.mysql.com
# Root:	/home/igor/dev-opt/mysql-5.0-opt-bug24420

--- 1.251/sql/item.cc	2007-01-26 17:10:51 -08:00
+++ 1.252/sql/item.cc	2007-01-26 17:10:51 -08:00
@@ -1242,7 +1242,10 @@
   if (type() == SUM_FUNC_ITEM && skip_registered && 
       ((Item_sum *) this)->ref_by)
     return;                                                 
-  if (type() != SUM_FUNC_ITEM && with_sum_func)
+  if ((type() != SUM_FUNC_ITEM && with_sum_func) ||
+      (type() == FUNC_ITEM &&
+       (((Item_func *) this)->functype() == Item_func::ISNOTNULLTEST_FUNC ||
+        ((Item_func *) this)->functype() == Item_func::TRIG_COND_FUNC)))
   {
     /* Will split complicated items and ignore simple ones */
     split_sum_func(thd, ref_pointer_array, fields);

--- 1.3/mysql-test/r/subselect3.result	2007-01-26 17:10:51 -08:00
+++ 1.4/mysql-test/r/subselect3.result	2007-01-26 17:10:51 -08:00
@@ -629,3 +629,19 @@
 aa	1	1
 bb	NULL	NULL
 drop table t1,t2;
+create table t1 (a int, b int);
+insert into t1 values (0,0), (2,2), (3,3);
+create table t2 (a int, b int);
+insert into t2 values (1,1), (3,3);
+select a, b, (a,b) in (select a, min(b) from t2 group by a) Z from t1;
+a	b	Z
+0	0	0
+2	2	0
+3	3	1
+insert into t2 values (NULL,4);
+select a, b, (a,b) in (select a, min(b) from t2 group by a) Z from t1;
+a	b	Z
+0	0	0
+2	2	0
+3	3	1
+drop table t1,t2;

--- 1.4/mysql-test/t/subselect3.test	2007-01-26 17:10:51 -08:00
+++ 1.5/mysql-test/t/subselect3.test	2007-01-26 17:10:51 -08:00
@@ -472,3 +472,20 @@
 
 drop table t1,t2;
 
+#
+# BUG#24420: row-based IN suqueries with aggregation when the left operand
+#            of the subquery predicate may contain NULL values
+#
+
+create table t1 (a int, b int);
+insert into t1 values (0,0), (2,2), (3,3);
+create table t2 (a int, b int);
+insert into t2 values (1,1), (3,3);
+
+select a, b, (a,b) in (select a, min(b) from t2 group by a) Z from t1;
+
+insert into t2 values (NULL,4);
+select a, b, (a,b) in (select a, min(b) from t2 group by a) Z from t1;
+
+drop table t1,t2;
+