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Posted to issues@drill.apache.org by "huntersjm (JIRA)" <ji...@apache.org> on 2015/11/19 02:40:11 UTC
[jira] [Commented] (DRILL-4100) DRILL JOIN STREAMING AGG ERROR
[ https://issues.apache.org/jira/browse/DRILL-4100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012565#comment-15012565 ]
huntersjm commented on DRILL-4100:
----------------------------------
That means `streaming agg` operation in plans tuncates the output, you can get that from the Operator Profiles:
{noformat}
01-xx-00 - HASH_PARTITION_SENDER
Minor Fragment Setup Time Process Time Wait Time Max Batches Max Records Peak Memory
01-00-00 0.000s 0.301s 0.028s 3 65,536 90KB
01-01-00 0.000s 0.406s 0.028s 3 65,536 91KB
01-xx-01 - STREAMING_AGGREGATE
Minor Fragment Setup Time Process Time Wait Time Max Batches Max Records Peak Memory
01-00-01 0.174s 0.564s 0.000s 29 1,812,457 1MB
01-01-01 0.497s 0.553s 0.000s 29 1,812,973 1MB
{noformat}
After streaming agg, 1,812,457 records becomes 65,536 records
> DRILL JOIN STREAMING AGG ERROR
> ------------------------------
>
> Key: DRILL-4100
> URL: https://issues.apache.org/jira/browse/DRILL-4100
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 1.1.0
> Reporter: huntersjm
>
> SQL LIKE :
> {code:sql}
> select t1.a1 from (
> select a1,count(a2) as total from t group by a1
> ) as a join (
> select a1,count(a2) as total from t where a3 = 'true' group by a1 order by total desc limit 100
> ) as f on t2.a1 = t1.a1
> {code}
> GET ERROR RESULT
> PART OF Operator Profiles：
> 01-xx-00 - HASH_PARTITION_SENDER
> Minor Fragment Setup Time Process Time Wait Time Max Batches Max Records Peak Memory
> 01-00-00 0.000s 0.301s 0.028s 3 65,536 90KB
> 01-01-00 0.000s 0.406s 0.028s 3 65,536 91KB
> 01-xx-01 - STREAMING_AGGREGATE
> Minor Fragment Setup Time Process Time Wait Time Max Batches Max Records Peak Memory
> 01-00-01 0.174s 0.564s 0.000s 29 1,812,457 1MB
> 01-01-01 0.497s 0.553s 0.000s 29 1,812,973 1MB
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