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https://issues.apache.org/jira/browse/HAWQ-44?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15007608#comment-15007608
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ASF GitHub Bot commented on HAWQ-44:
------------------------------------
Github user hornn commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/92#discussion_r45000243
--- Diff: src/backend/commands/analyze.c ---
@@ -1436,7 +1431,7 @@ static Oid buildSampleTable(Oid relationOid,
/**
* Drops the sample table created during ANALYZE.
*/
-static void dropSampleTable(Oid sampleTableOid)
+void dropSampleTable(Oid sampleTableOid, bool isExternal)
--- End diff --
We create several sample tables - one is a PXF table that is used to get
the samples, and another is a AO table where the samples are stored.
> Advanced statistics for PXF tables
> ----------------------------------
>
> Key: HAWQ-44
> URL: https://issues.apache.org/jira/browse/HAWQ-44
> Project: Apache HAWQ
> Issue Type: New Feature
> Components: PXF
> Reporter: Noa Horn
> Assignee: Noa Horn
> Labels: Performance
>
> PXF will get full statistics on a table using sampling.
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