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Posted to issues@kylin.apache.org by "Yang Hao (JIRA)" <ji...@apache.org> on 2017/12/07 13:10:00 UTC
[jira] [Comment Edited] (KYLIN-3089) Query exception on
SortedIteratorMergerWithLimit
[ https://issues.apache.org/jira/browse/KYLIN-3089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16281820#comment-16281820 ]
Yang Hao edited comment on KYLIN-3089 at 12/7/17 1:09 PM:
----------------------------------------------------------
There is only one segment in the case, and the order is mismatch on the column which is encoded as fixed length string
was (Author: yanghaogn):
There is only one segment in the case
> Query exception on SortedIteratorMergerWithLimit
> ------------------------------------------------
>
> Key: KYLIN-3089
> URL: https://issues.apache.org/jira/browse/KYLIN-3089
> Project: Kylin
> Issue Type: Bug
> Reporter: Yang Hao
>
> The executing error only exists on some special case. I have a simple sql, and the query is routing onto SortedIteratorMergerWithLimit. When iterate data, it triggers such error
> {code:java}
> //TODO: remove this check when validated
> if (last != null) {
> if (comparator.compare(last, fetched) > 0)
> throw new IllegalStateException("Not sorted! last: " + last + " fetched: " + fetched);
> }
> {code}
> sql is as belows.
> {code:java}
> select "DATE",appid,dim_1,dim_2, sum(uv) as uv
> from table_1
> where appid = **** and "DATE" = 20171111
> group by "DATE",appid,dim_1,dim_2
> limit 50000
> {code}
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