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https://issues.apache.org/jira/browse/DRILL-7326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16912206#comment-16912206
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ASF GitHub Bot commented on DRILL-7326:
---------------------------------------
ihuzenko commented on pull request #1844: DRILL-7326: Support repeated lists
for CTAS parquet format
URL: https://github.com/apache/drill/pull/1844#discussion_r316135414
##########
File path:
exec/java-exec/src/main/codegen/templates/EventBasedRecordWriter.java
##########
@@ -96,7 +96,7 @@ private void initFieldWriters() throws IOException {
public static abstract class FieldConverter {
protected static final String LIST = "list";
- protected static final String ELEMENT = "element";
+ public static final String ELEMENT = "element";
Review comment:
why ? They are not used outside of converter.
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> Support repeated lists for CTAS parquet format
> ----------------------------------------------
>
> Key: DRILL-7326
> URL: https://issues.apache.org/jira/browse/DRILL-7326
> Project: Apache Drill
> Issue Type: New Feature
> Affects Versions: 1.16.0
> Reporter: Pavel Semenov
> Assignee: Igor Guzenko
> Priority: Major
>
> *STEPS TO REPRODUCE*
> # Create json file with which has double nesting array as a value e.g.
> {code:java}"stringx2":[["asd","фывфы","asg"],["as","acz","gte"],["as","tdf","dsd"]]
> {code}
> # Use CTAS to create table in drill with created json file
> # Observe the result
> *EXPECTED RESULT*
> Table is created
> *ACTUAL RESULT*
> UnsupportedOperationException appears on attempting to create the table
> *ADDITIONAL INFO*
> It is possible to create table with with *single* nested array
> Error log
> {code:java}
> Error: SYSTEM ERROR: UnsupportedOperationException: Unsupported type LIST
> Fragment 0:0
> Please, refer to logs for more information.
> [Error Id: c48c6154-30a1-49c8-ac3b-7c2f898a7f4e on node1.cluster.com:31010]
> (java.lang.UnsupportedOperationException) Unsupported type LIST
> org.apache.drill.exec.store.parquet.ParquetRecordWriter.getType():295
> org.apache.drill.exec.store.parquet.ParquetRecordWriter.newSchema():226
> org.apache.drill.exec.store.parquet.ParquetRecordWriter.updateSchema():211
> org.apache.drill.exec.physical.impl.WriterRecordBatch.setupNewSchema():160
> org.apache.drill.exec.physical.impl.WriterRecordBatch.innerNext():108
> org.apache.drill.exec.record.AbstractRecordBatch.next():186
> org.apache.drill.exec.record.AbstractRecordBatch.next():126
> org.apache.drill.exec.record.AbstractRecordBatch.next():116
> org.apache.drill.exec.record.AbstractUnaryRecordBatch.innerNext():63
>
> org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext():141
> org.apache.drill.exec.record.AbstractRecordBatch.next():186
> org.apache.drill.exec.physical.impl.BaseRootExec.next():104
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext():83
> org.apache.drill.exec.physical.impl.BaseRootExec.next():94
> org.apache.drill.exec.work.fragment.FragmentExecutor$1.run():296
> org.apache.drill.exec.work.fragment.FragmentExecutor$1.run():283
> java.security.AccessController.doPrivileged():-2
> javax.security.auth.Subject.doAs():422
> org.apache.hadoop.security.UserGroupInformation.doAs():1669
> org.apache.drill.exec.work.fragment.FragmentExecutor.run():283
> org.apache.drill.common.SelfCleaningRunnable.run():38
> java.util.concurrent.ThreadPoolExecutor.runWorker():1149
> java.util.concurrent.ThreadPoolExecutor$Worker.run():624
> java.lang.Thread.run():748 (state=,code=0)
> {code}
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