| -- |
| -- Licensed to the Apache Software Foundation (ASF) under one or more |
| -- contributor license agreements. See the NOTICE file distributed with |
| -- this work for additional information regarding copyright ownership. |
| -- The ASF licenses this file to You under the Apache License, Version 2.0 |
| -- (the "License"); you may not use this file except in compliance with |
| -- the License. You may obtain a copy of the License at |
| -- |
| -- http://www.apache.org/licenses/LICENSE-2.0 |
| -- |
| -- Unless required by applicable law or agreed to in writing, software |
| -- distributed under the License is distributed on an "AS IS" BASIS, |
| -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| -- See the License for the specific language governing permissions and |
| -- limitations under the License. |
| -- |
| -- DERBY-939 |
| -- Test union and intersect/except with runtime statistics enabled. |
| CREATE TABLE t1 (i int); |
| CREATE TABLE t2 (j int); |
| CREATE TABLE t3 (k int); |
| INSERT INTO t1 VALUES 3,2,1; |
| INSERT INTO t2 VALUES 1,2,3,4; |
| INSERT INTO t3 VALUES 5,2,3,4,1; |
| CALL SYSCS_UTIL.SYSCS_SET_RUNTIMESTATISTICS(1); |
| MaximumDisplayWidth 7000; |
| |
| SELECT i FROM t1 UNION SELECT j FROM t2 INTERSECT SELECT k FROM t3; |
| VALUES SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS(); |
| |
| SELECT i FROM t1 UNION SELECT j FROM t2 EXCEPT SELECT k FROM t3; |
| VALUES SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS(); |
| |
| SELECT i FROM t1 INTERSECT SELECT j FROM t2 EXCEPT SELECT k FROM t3; |
| VALUES SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS(); |
| |
| CALL SYSCS_UTIL.SYSCS_SET_RUNTIMESTATISTICS(0); |