Github user jinfengni commented on a diff in the pull request:
https://github.com/apache/drill/pull/559#discussion_r73725525
--- Diff:
exec/java-exec/src/test/java/org/apache/drill/TestPartitionFilter.java ---
@@ -386,4 +386,49 @@ public void testPartitionFilterWithInSubquery() throws
Exception {
test("alter session set `planner.in_subquery_threshold` = 10");
testExcludeFilter(query, 4, "Filter", 40);
}
+
+
+ @Test // DRILL-4825: querying same table with different filter in UNION
ALL.
+ public void testPruneSameTableInUnionAll() throws Exception {
+ final String query = String.format("select count(*) as cnt from "
+ + "( select dir0 from dfs_test.`%s/multilevel/parquet` where dir0
in ('1994') union all "
+ + " select dir0 from dfs_test.`%s/multilevel/parquet` where dir0
in ('1995', '1996') )",
+ TEST_RES_PATH, TEST_RES_PATH);
+
+ String [] exclued = {"Filter"};
--- End diff --
modified.
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