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Posted to dev@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2013/09/04 00:53:51 UTC
[jira] [Commented] (DRILL-201) aggregate with multiple files
returns a result for each file
[ https://issues.apache.org/jira/browse/DRILL-201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757196#comment-13757196 ]
Jacques Nadeau commented on DRILL-201:
--------------------------------------
This is a problem with excess new schema messages being generated. Aggregate flushes and restarts aggregates when a new schema is encountered. ScanBatch currently generates a new schema event for each new file. Trying to figure out an elegant solution.
> aggregate with multiple files returns a result for each file
> ------------------------------------------------------------
>
> Key: DRILL-201
> URL: https://issues.apache.org/jira/browse/DRILL-201
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Steven Phillips
> Assignee: Jacques Nadeau
>
> Query:
> select count(1) from "/tmp/tpc-h/customer";
> Result:
> +---------+
> | EXPR$0 |
> +---------+
> | 265617 |
> | 410287 |
> | 411652 |
> | 412444 |
> +---------+
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