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Posted to commits@calcite.apache.org by jc...@apache.org on 2017/06/20 10:12:51 UTC

calcite git commit: [CALCITE-1852] Fix for UnionMergeRule to deal correctly with EXCEPT [Forced Update!]

Repository: calcite
Updated Branches:
  refs/heads/master 7cdf4d04b -> f63a65a8c (forced update)


[CALCITE-1852] Fix for UnionMergeRule to deal correctly with EXCEPT


Project: http://git-wip-us.apache.org/repos/asf/calcite/repo
Commit: http://git-wip-us.apache.org/repos/asf/calcite/commit/f63a65a8
Tree: http://git-wip-us.apache.org/repos/asf/calcite/tree/f63a65a8
Diff: http://git-wip-us.apache.org/repos/asf/calcite/diff/f63a65a8

Branch: refs/heads/master
Commit: f63a65a8c6ffd9a771e27ef0446496c6b67baeea
Parents: db95f5b
Author: Jesus Camacho Rodriguez <jc...@apache.org>
Authored: Tue Jun 20 10:22:24 2017 +0100
Committer: Jesus Camacho Rodriguez <jc...@apache.org>
Committed: Tue Jun 20 11:12:37 2017 +0100

----------------------------------------------------------------------
 .../calcite/rel/rules/UnionMergeRule.java       |  3 +-
 .../apache/calcite/test/RelOptRulesTest.java    | 30 +++++++++
 .../org/apache/calcite/test/RelOptRulesTest.xml | 70 ++++++++++++++++++++
 3 files changed, 102 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/calcite/blob/f63a65a8/core/src/main/java/org/apache/calcite/rel/rules/UnionMergeRule.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/calcite/rel/rules/UnionMergeRule.java b/core/src/main/java/org/apache/calcite/rel/rules/UnionMergeRule.java
index 39bb474..20fbcd9 100644
--- a/core/src/main/java/org/apache/calcite/rel/rules/UnionMergeRule.java
+++ b/core/src/main/java/org/apache/calcite/rel/rules/UnionMergeRule.java
@@ -115,7 +115,8 @@ public class UnionMergeRule extends RelOptRule {
     // Combine the inputs from the bottom set-op with the other inputs from
     // the top set-op.
     final RelBuilder relBuilder = call.builder();
-    if (setOpClass.isInstance(call.rel(2))) {
+    if (setOpClass.isInstance(call.rel(2))
+        && !Minus.class.isAssignableFrom(setOpClass)) {
       relBuilder.push(topOp.getInput(0));
       relBuilder.pushAll(bottomOp.getInputs());
       // topOp.getInputs().size() may be more than 2

http://git-wip-us.apache.org/repos/asf/calcite/blob/f63a65a8/core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java b/core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java
index 891ea10..db29c0f 100644
--- a/core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java
+++ b/core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java
@@ -1100,6 +1100,36 @@ public class RelOptRulesTest extends RelOptTestBase {
                     + ") aa\n");
   }
 
+  @Test
+  public void testMinusMergeRule() throws Exception {
+    HepProgram program = new HepProgramBuilder()
+            .addRuleInstance(ProjectSetOpTransposeRule.INSTANCE)
+            .addRuleInstance(ProjectRemoveRule.INSTANCE)
+            .addRuleInstance(UnionMergeRule.MINUS_INSTANCE)
+            .build();
+
+    checkPlanning(program,
+            "select * from (\n"
+                    + "select * from (\n"
+                    + "  select name, deptno from\n"
+                    + "  (\n"
+                    + "    select name, deptno, count(1) from dept group by name, deptno\n"
+                    + "    except all\n"
+                    + "    select name, deptno, 1 from dept\n"
+                    + "  ) subq\n"
+                    + "  except all\n"
+                    + "  select name, deptno from\n"
+                    + "  (\n"
+                    + "    select name, deptno, 1 from dept\n"
+                    + "    except all\n"
+                    + "    select name, deptno, count(1) from dept group by name, deptno\n"
+                    + "  ) subq2\n"
+                    + ") a\n"
+                    + "except all\n"
+                    + "select name, deptno from dept\n"
+                    + ") aa\n");
+  }
+
   /** Tests that a filters is combined are combined if they are identical,
    * even if one of them originates in an ON clause of a JOIN. */
   @Test public void testMergeJoinFilter() throws Exception {

http://git-wip-us.apache.org/repos/asf/calcite/blob/f63a65a8/core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml
----------------------------------------------------------------------
diff --git a/core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml b/core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml
index 90f43f2..ac2b30f 100644
--- a/core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml
+++ b/core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml
@@ -206,6 +206,76 @@ LogicalProject(NAME=[$0], DEPTNO=[$1])
 ]]>
         </Resource>
     </TestCase>
+    <TestCase name="testMinusMergeRule">
+        <Resource name="sql">
+            <![CDATA[select * from (
+select * from (
+  select name, deptno from
+  (
+    select name, deptno, count(1) from dept group by name, deptno
+    except all
+    select name, deptno, 1 from dept
+  ) subq
+  except all
+  select name, deptno from
+  (
+    select name, deptno, 1 from dept
+    except all
+    select name, deptno, count(1) from dept group by name, deptno
+  ) subq2
+) a
+except all
+select name, deptno from dept
+) aa
+]]>
+        </Resource>
+        <Resource name="planAfter">
+            <![CDATA[
+LogicalMinus(all=[true])
+  LogicalProject(NAME=[$0], DEPTNO=[$1])
+    LogicalAggregate(group=[{0, 1}], EXPR$2=[COUNT()])
+      LogicalProject(NAME=[$1], DEPTNO=[$0], $f2=[1])
+        LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+  LogicalProject(NAME=[$0], DEPTNO=[$1])
+    LogicalProject(NAME=[$1], DEPTNO=[$0], EXPR$2=[1])
+      LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+  LogicalMinus(all=[true])
+    LogicalProject(NAME=[$0], DEPTNO=[$1])
+      LogicalProject(NAME=[$1], DEPTNO=[$0], EXPR$2=[1])
+        LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+    LogicalProject(NAME=[$0], DEPTNO=[$1])
+      LogicalAggregate(group=[{0, 1}], EXPR$2=[COUNT()])
+        LogicalProject(NAME=[$1], DEPTNO=[$0], $f2=[1])
+          LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+  LogicalProject(NAME=[$1], DEPTNO=[$0])
+    LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+]]>
+        </Resource>
+        <Resource name="planBefore">
+            <![CDATA[
+LogicalProject(NAME=[$0], DEPTNO=[$1])
+  LogicalMinus(all=[true])
+    LogicalProject(NAME=[$0], DEPTNO=[$1])
+      LogicalMinus(all=[true])
+        LogicalProject(NAME=[$0], DEPTNO=[$1])
+          LogicalMinus(all=[true])
+            LogicalAggregate(group=[{0, 1}], EXPR$2=[COUNT()])
+              LogicalProject(NAME=[$1], DEPTNO=[$0], $f2=[1])
+                LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+            LogicalProject(NAME=[$1], DEPTNO=[$0], EXPR$2=[1])
+              LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+        LogicalProject(NAME=[$0], DEPTNO=[$1])
+          LogicalMinus(all=[true])
+            LogicalProject(NAME=[$1], DEPTNO=[$0], EXPR$2=[1])
+              LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+            LogicalAggregate(group=[{0, 1}], EXPR$2=[COUNT()])
+              LogicalProject(NAME=[$1], DEPTNO=[$0], $f2=[1])
+                LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+    LogicalProject(NAME=[$1], DEPTNO=[$0])
+      LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
+]]>
+        </Resource>
+    </TestCase>
     <TestCase name="testExtractJoinFilterRule">
         <Resource name="sql">
             <![CDATA[select 1 from emp inner join dept on emp.deptno=dept.deptno]]>