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https://issues.apache.org/jira/browse/DRILL-6199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16402103#comment-16402103
]
ASF GitHub Bot commented on DRILL-6199:
---------------------------------------
Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/1152#discussion_r175137249
--- Diff:
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestPushDownAndPruningWithItemStar.java
---
@@ -180,4 +248,38 @@ public void testFilterPushDownMultipleConditions()
throws Exception {
.build();
}
+ @Test
+ public void testFilterPushDownWithSeveralNestedStarSubQueries() throws
Exception {
+ String subQuery = String.format("select * from `%s`.`%s`",
DFS_TMP_SCHEMA, TABLE_NAME);
+ String query = String.format("select * from (select * from (select *
from (%s))) where o_orderdate = date '1992-01-01'", subQuery);
+
+ String[] expectedPlan = {"numFiles=1, numRowGroups=1,
usedMetadataFile=false, columns=\\[`\\*\\*`, `o_orderdate`\\]"};
+ String[] excludedPlan = {};
+
+ PlanTestBase.testPlanMatchingPatterns(query, expectedPlan,
excludedPlan);
+
+ testBuilder()
+ .sqlQuery(query)
+ .unOrdered()
+ .sqlBaselineQuery("select * from `%s`.`%s` where o_orderdate =
date '1992-01-01'", DFS_TMP_SCHEMA, TABLE_NAME)
+ .build();
+ }
+
+ @Test
+ public void
testFilterPushDownWithSeveralNestedStarSubQueriesWithAdditionalColumns() throws
Exception {
+ String subQuery = String.format("select * from `%s`.`%s`",
DFS_TMP_SCHEMA, TABLE_NAME);
+ String query = String.format("select * from (select * from (select *,
o_orderdate from (%s))) where o_orderdate = date '1992-01-01'", subQuery);
--- End diff --
Done.
> Filter push down doesn't work with more than one nested subqueries
> ------------------------------------------------------------------
>
> Key: DRILL-6199
> URL: https://issues.apache.org/jira/browse/DRILL-6199
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.13.0
> Reporter: Anton Gozhiy
> Assignee: Arina Ielchiieva
> Priority: Major
> Fix For: 1.14.0
>
> Attachments: DRILL_6118_data_source.csv
>
>
> *Data set:*
> The data is generated used the attached file: *DRILL_6118_data_source.csv*
> Data gen commands:
> {code:sql}
> create table dfs.tmp.`DRILL_6118_parquet_partitioned_by_folders/d1` (c1, c2,
> c3, c4, c5) as select cast(columns[0] as int) c1, columns[1] c2, columns[2]
> c3, columns[3] c4, columns[4] c5 from dfs.tmp.`DRILL_6118_data_source.csv`
> where columns[0] in (1, 3);
> create table dfs.tmp.`DRILL_6118_parquet_partitioned_by_folders/d2` (c1, c2,
> c3, c4, c5) as select cast(columns[0] as int) c1, columns[1] c2, columns[2]
> c3, columns[3] c4, columns[4] c5 from dfs.tmp.`DRILL_6118_data_source.csv`
> where columns[0]=2;
> create table dfs.tmp.`DRILL_6118_parquet_partitioned_by_folders/d3` (c1, c2,
> c3, c4, c5) as select cast(columns[0] as int) c1, columns[1] c2, columns[2]
> c3, columns[3] c4, columns[4] c5 from dfs.tmp.`DRILL_6118_data_source.csv`
> where columns[0]>3;
> {code}
> *Steps:*
> # Execute the following query:
> {code:sql}
> explain plan for select * from (select * from (select * from
> dfs.tmp.`DRILL_6118_parquet_partitioned_by_folders`)) where c1<3
> {code}
> *Expected result:*
> numFiles=2, numRowGroups=2, only files from the folders d1 and d2 should be
> scanned.
> *Actual result:*
> Filter push down doesn't work:
> numFiles=3, numRowGroups=3, scanning from all files
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