Fix bug #9703 "Error 1032 with GROUP BY query and large tables"

Reset old error if tmp table was successfully created.

Test data is large and can be found in bug report along with test query.

BitKeeper/etc/logging_ok

@@ -45,6 +45,8 @@ dlenev@build.mysql.com
 dlenev@jabberwock.localdomain
 dlenev@mysql.com
 ejonore@mc03.ndb.mysql.com
+evgen@moonbone.(none)
+evgen@moonbone.local
 gbichot@quadita2.mysql.com
 gbichot@quadxeon.mysql.com
 georg@beethoven.local

sql/sql_select.cc

@@ -6891,6 +6891,11 @@ end_write_group(JOIN *join, JOIN_TAB *join_tab __attribute__((unused)),
 				      &join->tmp_table_param,
 				      error, 0))
 	    DBUG_RETURN(-1);		       
+            /* 
+              If table->file->write_row() was failed because of 'out of memory'
+              and tmp table succesfully created, reset error.
+             */
+            error=0;
         }
         if (join->rollup.state != ROLLUP::STATE_NONE && error <= 0)
 	{