DRILL-6865: Filter is not removed from the plan when parquet table fully matches the filter

closes #1552

1 files changed, 9 insertions, 0 deletions

diff --git a/exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetFilterPushDown.java b/exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetFilterPushDown.java
index ccc1480d9..80b06d916 100644
--- a/exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetFilterPushDown.java
+++ b/exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetFilterPushDown.java
@@ -649,6 +649,15 @@ public class TestParquetFilterPushDown extends PlanTestBase {
     assertEquals(RowsMatch.ALL, isNotFalse.matches(re));
   }
 
+  @Test
+  public void testParquetSingleRowGroupFilterRemoving() throws Exception {
+    test("create table dfs.tmp.`singleRowGroupTable` as select * from cp.`tpch/nation.parquet`");
+
+    String query = "select * from dfs.tmp.`singleRowGroupTable` where n_nationkey > -1";
+
+    testParquetFilterPruning(query, 25, 1, new String[]{"Filter\\("});
+  }
+
   //////////////////////////////////////////////////////////////////////////////////////////////////
   // Some test helper functions.
   //////////////////////////////////////////////////////////////////////////////////////////////////