[ 
https://issues.apache.org/jira/browse/DRILL-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16540055#comment-16540055
 ] 

ASF GitHub Bot commented on DRILL-5797:
---------------------------------------

arina-ielchiieva commented on a change in pull request #1370: DRILL-5797: Use 
Parquet new reader in all non-complex column queries
URL: https://github.com/apache/drill/pull/1370#discussion_r201676203
 
 

 ##########
 File path: 
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestComplexColumnInSchema.java
 ##########
 @@ -0,0 +1,141 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import org.apache.drill.common.expression.SchemaPath;
+import org.apache.drill.exec.store.parquet.ParquetReaderUtility;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.parquet.hadoop.metadata.ParquetMetadata;
+import org.apache.parquet.hadoop.ParquetFileReader;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import java.io.IOException;
+
+/**
+ * This test checks correctness of complex column detection in the Parquet 
file schema.
+ */
+public class TestComplexColumnInSchema {
+
+  private static final String path = 
"src/test/resources/store/parquet/complex/complex_special_cases.parquet";
 
 Review comment:
   You can add description of the schema and data in the comment.
   Example: 
https://github.com/apache/drill/blob/9a6cb59b9b7a5b127e5f60309ce2f506ede9652a/exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetFilterPushDownForComplexTypes.java

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


> Use more often the new parquet reader
> -------------------------------------
>
>                 Key: DRILL-5797
>                 URL: https://issues.apache.org/jira/browse/DRILL-5797
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Storage - Parquet
>            Reporter: Damien Profeta
>            Assignee: Oleksandr Kalinin
>            Priority: Major
>             Fix For: 1.15.0
>
>
> The choice of using the regular parquet reader of the optimized one is based 
> of what type of columns is in the file. But the columns that are read by the 
> query doesn't matter. We can increase a little bit the cases where the 
> optimized reader is used by checking is the projected column are simple or 
> not.
> This is an optimization waiting for the fast parquet reader to handle complex 
> structure.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to