hsyuan commented on a change in pull request #784: [CALCITE-2456] fix
VolcanoRuleCall#match for unordered child operand
URL: https://github.com/apache/calcite/pull/784#discussion_r273260245
##########
File path: core/src/test/java/org/apache/calcite/tools/PlannerTest.java
##########
@@ -372,6 +376,148 @@ private void checkMetadataPredicates(String sql,
+ " EnumerableTableScan(table=[[hr, emps]])\n"));
}
+ /** Unit test that parses, validates, converts and plans. */
+ @Test public void trimEmptyUnion2() throws Exception {
+ checkUnionPruning("values(1) union all select * from (values(2)) where
false",
+ "EnumerableValues(type=[RecordType(INTEGER EXPR$0)], tuples=[[{ 1
}]])\n");
+
+ checkUnionPruning("select * from (values(2)) where false union all
values(1)",
+ "EnumerableValues(type=[RecordType(INTEGER EXPR$0)], tuples=[[{ 1
}]])\n");
+ }
+
+ @Test public void trimEmptyUnion31() throws Exception {
+ emptyUnions31();
+ }
+
+ @Test public void trimEmptyUnion31withUnionMerge() throws Exception {
+ emptyUnions31(UnionMergeRule.INSTANCE);
+ }
+
+ private void emptyUnions31(UnionMergeRule... extraRules)
+ throws SqlParseException, ValidationException, RelConversionException {
+ String plan = "EnumerableValues(type=[RecordType(INTEGER EXPR$0)],
tuples=[[{ 1 }]])\n";
+ checkUnionPruning("values(1)"
+ + " union all select * from (values(2)) where false"
+ + " union all select * from (values(3)) where false",
+ plan, extraRules);
+
+ checkUnionPruning("select * from (values(2)) where false"
+ + " union all values(1)"
+ + " union all select * from (values(3)) where false",
+ plan, extraRules);
+
+ checkUnionPruning("select * from (values(2)) where false"
+ + " union all select * from (values(3)) where false"
+ + " union all values(1)",
+ plan, extraRules);
+ }
+
+ @Ignore("[CALCITE-2773] java.lang.AssertionError: rel"
Review comment:
Did you forget to import `Ignore`?
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