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Posted to commits@quickstep.apache.org by ji...@apache.org on 2017/04/09 01:48:44 UTC
[04/14] incubator-quickstep git commit: Implement parser and resolver
for UNION and INTERSECT.
http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/5b7b5cb8/parser/tests/SetOperation.test
----------------------------------------------------------------------
diff --git a/parser/tests/SetOperation.test b/parser/tests/SetOperation.test
new file mode 100644
index 0000000..e86cb2f
--- /dev/null
+++ b/parser/tests/SetOperation.test
@@ -0,0 +1,235 @@
+# 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.
+
+SELECT * FROM a
+UNION ALL
+SELECT * FROM b;
+--
+SetOperationStatement
++-set_operation_query=SetOperation[set_operation_type=UnionAll]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=a]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-TableReference[table=b]
+==
+
+# Currently does not support INTERSECT ALL.
+SELECT * FROM a
+INTERSECT ALL
+SELECT * FROM b;
+--
+ERROR: syntax error (2 : 11)
+INTERSECT ALL
+ ^
+==
+
+SELECT * FROM a
+UNION
+SELECT * FROM b
+UNION
+SELECT * FROM c;
+--
+SetOperationStatement
++-set_operation_query=SetOperation[set_operation_type=Union]
+ +-children=
+ +-SetOperation[set_operation_type=Union]
+ | +-children=
+ | +-SetOperation[set_operation_type=Select]
+ | | +-children=
+ | | +-Select
+ | | +-select_clause=SelectStar
+ | | +-from_clause=
+ | | +-TableReference[table=a]
+ | +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=b]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-TableReference[table=c]
+==
+
+SELECT * FROM a
+INTERSECT
+SELECT * FROM b
+UNION
+SELECT * FROM c
+INTERSECT
+SELECT * FROM d;
+--
+SetOperationStatement
++-set_operation_query=SetOperation[set_operation_type=Union]
+ +-children=
+ +-SetOperation[set_operation_type=Intersect]
+ | +-children=
+ | +-SetOperation[set_operation_type=Select]
+ | | +-children=
+ | | +-Select
+ | | +-select_clause=SelectStar
+ | | +-from_clause=
+ | | +-TableReference[table=a]
+ | +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=b]
+ +-SetOperation[set_operation_type=Intersect]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=c]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-TableReference[table=d]
+==
+
+# Currently does not support using bracket to change order,
+# Instead, use a subquery to change order of set operations.
+SELECT * FROM a
+INTERSECT
+(SELECT * FROM a
+UNION
+SELECT * FROM b);
+--
+ERROR: syntax error (3 : 1)
+(SELECT * FROM a
+^
+==
+
+SELECT * FROM a
+INTERSECT
+SELECT * FROM
+ (SELECT * FROM a
+ UNION
+ SELECT * FROM b
+ ) AS temp;
+--
+SetOperationStatement
++-set_operation_query=SetOperation[set_operation_type=Intersect]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=a]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-SubqueryTable
+ +-table_signature=TableSignature[table_alias=temp]
+ +-SubqueryExpression
+ +-SetOperation[set_operation_type=Union]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=a]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-TableReference[table=b]
+==
+
+SELECT * FROM
+ (SELECT * FROM a
+ UNION ALL
+ SELECT * FROM b
+ ) AS temp1
+INTERSECT
+SELECT * FROM
+ (SELECT * FROM a
+ UNION
+ SELECT * FROM b
+ ) AS temp2;
+--
+SetOperationStatement
++-set_operation_query=SetOperation[set_operation_type=Intersect]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-SubqueryTable
+ | +-table_signature=TableSignature[table_alias=temp1]
+ | +-SubqueryExpression
+ | +-SetOperation[set_operation_type=UnionAll]
+ | +-children=
+ | +-SetOperation[set_operation_type=Select]
+ | | +-children=
+ | | +-Select
+ | | +-select_clause=SelectStar
+ | | +-from_clause=
+ | | +-TableReference[table=a]
+ | +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=b]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-SubqueryTable
+ +-table_signature=TableSignature[table_alias=temp2]
+ +-SubqueryExpression
+ +-SetOperation[set_operation_type=Union]
+ +-children=
+ +-SetOperation[set_operation_type=Select]
+ | +-children=
+ | +-Select
+ | +-select_clause=SelectStar
+ | +-from_clause=
+ | +-TableReference[table=a]
+ +-SetOperation[set_operation_type=Select]
+ +-children=
+ +-Select
+ +-select_clause=SelectStar
+ +-from_clause=
+ +-TableReference[table=b]
+==
+