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https://issues.apache.org/jira/browse/DRILL-7171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16817427#comment-16817427
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ASF GitHub Bot commented on DRILL-7171:
---------------------------------------
amansinha100 commented on pull request #1748: DRILL-7171: Create metadata
directories cache file in the leaf level directories to support
ConvertCountToDirectScan optimization.
URL: https://github.com/apache/drill/pull/1748#discussion_r275170762
##########
File path:
exec/java-exec/src/test/java/org/apache/drill/exec/planner/logical/TestConvertCountToDirectScan.java
##########
@@ -274,4 +274,39 @@ public void testCountsWithWildCard() throws Exception {
test("drop table if exists %s", tableName);
}
}
+
+ @Test
+ public void testCountsForLeafDirectories() throws Exception {
Review comment:
This test is good. Were you planning to add one with mix of files and
directories since that's a new behavior this PR is adding.
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> Count(*) query on leaf level directory is not reading summary cache file.
> -------------------------------------------------------------------------
>
> Key: DRILL-7171
> URL: https://issues.apache.org/jira/browse/DRILL-7171
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Venkata Jyothsna Donapati
> Assignee: Venkata Jyothsna Donapati
> Priority: Minor
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Since the leaf level directory doesn't store the metadata directories file,
> while reading summary if the directories cache file is not present, it is
> assumed that the cache is possibly corrupt and reading of the summary cache
> file is skipped. Metadata directories cache file should be created at the
> leaf level.
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