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https://issues.apache.org/jira/browse/DRILL-7330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17059863#comment-17059863
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ASF GitHub Bot commented on DRILL-7330:
---------------------------------------
vvysotskyi commented on pull request #2026: DRILL-7330: Implement metadata
usage for all format plugins
URL: https://github.com/apache/drill/pull/2026#discussion_r392718208
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/scan/framework/ShimBatchReader.java
##########
@@ -131,6 +131,8 @@ public boolean next() {
eof = ! reader.next();
}
+ readerOrchestrator.setEof(eof);
Review comment:
This flag is only required for `readerOrchestrator.endBatch()` method to
decide whether the file is empty and only its metadata row should be returned.
I have removed the field and introduced the new
`readerOrchestrator.endBatch(boolean)` method to make the code clearer.
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> Implement metadata usage for text format plugin
> -----------------------------------------------
>
> Key: DRILL-7330
> URL: https://issues.apache.org/jira/browse/DRILL-7330
> Project: Apache Drill
> Issue Type: Sub-task
> Reporter: Arina Ielchiieva
> Assignee: Vova Vysotskyi
> Priority: Major
> Fix For: 1.18.0
>
>
> 1. Change the current group scan to leverage Schema from Metastore;
> 2. Use stats for enabling additional logical planning rules for text format
> plugin. It will enable such optimizations as limit, filter push and so on.
> + add possibility to pass schema through schema file (using path or table
> root), inline.
> + check for other enhancements in analyze command
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