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https://issues.apache.org/jira/browse/DRILL-7156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16907190#comment-16907190
]
ASF GitHub Bot commented on DRILL-7156:
---------------------------------------
arina-ielchiieva commented on pull request #1836: DRILL-7156: Support empty
Parquet files creation
URL: https://github.com/apache/drill/pull/1836#discussion_r313829664
##########
File path:
exec/java-exec/src/test/java/org/apache/drill/exec/physical/impl/writer/TestParquetWriterEmptyFiles.java
##########
@@ -18,23 +18,33 @@
package org.apache.drill.exec.physical.impl.writer;
import org.apache.commons.io.FileUtils;
+import org.apache.drill.common.types.TypeProtos;
+import org.apache.drill.exec.record.BatchSchema;
+import org.apache.drill.exec.record.BatchSchemaBuilder;
+import org.apache.drill.exec.record.metadata.SchemaBuilder;
import org.apache.drill.test.BaseTestQuery;
import org.apache.drill.categories.ParquetTest;
import org.apache.drill.categories.UnlikelyTest;
import org.apache.drill.exec.ExecConstants;
-import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import java.io.File;
+import java.nio.file.Paths;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
@Category({ParquetTest.class, UnlikelyTest.class})
public class TestParquetWriterEmptyFiles extends BaseTestQuery {
@BeforeClass
public static void initFs() throws Exception {
updateTestCluster(3, null);
+ dirTestWatcher.copyResourceToRoot(Paths.get("schemachange"));
+ dirTestWatcher.copyResourceToRoot(Paths.get("parquet", "empty"));
}
@Test // see DRILL-2408
Review comment:
Please remove `see DRILL-2408`
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> Empty Parquet is not getting created if 0 records in result
> -----------------------------------------------------------
>
> Key: DRILL-7156
> URL: https://issues.apache.org/jira/browse/DRILL-7156
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Parquet
> Affects Versions: 1.16.0
> Reporter: Sayalee Bhanavase
> Assignee: Oleg Zinoviev
> Priority: Major
> Fix For: 1.17.0
>
>
> I am creating parquet tables out of joins. If there is no record in join, it
> does not create empty. table and when I reused the table my further script
> fails.
> Has anyone faced this issue? Any suggestion or workaround?
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