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https://issues.apache.org/jira/browse/DRILL-4247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107211#comment-15107211
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Deneche A. Hakim commented on DRILL-4247:
-----------------------------------------
Not sure, we may not have tested such case before
> Parquet statistics are ignored for tables created with partitioning
> -------------------------------------------------------------------
>
> Key: DRILL-4247
> URL: https://issues.apache.org/jira/browse/DRILL-4247
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Deneche A. Hakim
> Assignee: Jason Altekruse
>
> I am running all queries in embedded mode, using the latest master:
> {noformat}
> * e4372f2 2015-12-17 | DRILL-4242: Updates to storage-mongo (HEAD -> master,
> origin/master, origin/HEAD, origin/DRILL-3478) [Ross Lawley]
> {noformat}
> First run the following query:
> {noformat}
> create table dfs.tmp.test partition by (l_moddate) as select l.*, l_shipdate
> - extract(day from l_shipdate) + 1 l_moddate from cp.`tpch/lineitem.parquet`
> l;
> {noformat}
> then query the table just created:
> {noformat}
> select * from dfs.tmp.test order by l_orderkey;
> {noformat}
> after you close sqlline you should see the following warning
> {noformat}
> Jan 5, 2016 11:25:55 AM WARNING: org.apache.parquet.CorruptStatistics:
> Ignoring statistics because created_by is null or empty! See PARQUET-251 and
> PARQUET-297
> {noformat}
> To make sure the warning was not generated by the ctas, I closed sqlline
> between the queries.
> I tried some variations of the query and I don't see the warning when there
> is no partitioning or if I partition on a column other than date (didn't try
> all types though).
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