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https://issues.apache.org/jira/browse/IMPALA-11049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17454730#comment-17454730
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Zoltán Borók-Nagy commented on IMPALA-11049:
--------------------------------------------
Thanks for investigating it, [~skyyws].
Rewriting 'sortInfo_' makes sense to me. Alternatively maybe we can just invoke
analyze on the exprs of 'orderByElements_'? So we won't have INVALID types in
SimplifyCastExprRule. And sortInfo_ will be recreated from the rewritten exprs.
Then probably we don't need to change 'SimplifyCastExprRule' too much, probably
we'd just add a precondition:
{code:java}
Preconditions.checkState(castExpr.getType() != Type.INVALID && child.getType()
!= Type.INVALID);
{code}
> Order by clause contains cast expr execute failed after
> 'SimplifyCastExprRule' rewrite
> --------------------------------------------------------------------------------------
>
> Key: IMPALA-11049
> URL: https://issues.apache.org/jira/browse/IMPALA-11049
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 4.1.0
> Reporter: Sheng Wang
> Assignee: Sheng Wang
> Priority: Major
>
> When add new rewrite rule 'SimplifyCastExprRule' in IMPALA-10836, this query
> will execute failed:
> {code:java}
> explain
> SELECT month(to_timestamp(cast(d_date_sk AS string),'yyyy-MM-dd')) aa
> FROM date_dim
> GROUP BY month(to_timestamp(cast(d_date_sk AS string),'yyyy-MM-dd'))
> ORDER BY month(to_timestamp(cast(d_date_sk AS string),'yyyy-MM-dd')) LIMIT 10;
> {code}
> The exception is:
> {code:java}
> ERROR: AnalysisException: No matching function with signature:
> to_timestamp(INT, STRING).
> {code}
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