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https://issues.apache.org/jira/browse/DRILL-4938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15944481#comment-15944481
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Khurram Faraaz commented on DRILL-4938:
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[~zelaine] thanks for the info. The new error PLAN ERROR seems better than the
previous SYSTEM ERROR. Marking this one as closed.
> Report UserException when constant expression reduction fails
> -------------------------------------------------------------
>
> Key: DRILL-4938
> URL: https://issues.apache.org/jira/browse/DRILL-4938
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Data Types
> Affects Versions: 1.9.0
> Reporter: Khurram Faraaz
> Assignee: Serhii Harnyk
> Priority: Minor
> Fix For: 1.10.0
>
>
> We need a better error message instead of DrillRuntimeException
> Drill 1.9.0 git commit ID : 4edabe7a
> {noformat}
> 0: jdbc:drill:schema=dfs.tmp> select (res1 = 2016/09/22) res2
> . . . . . . . . . . . . . . > from
> . . . . . . . . . . . . . . > (
> . . . . . . . . . . . . . . > select (case when (false) then null else
> cast('2016/09/22' as date) end) res1
> . . . . . . . . . . . . . . > from (values(1)) foo
> . . . . . . . . . . . . . . > ) foobar;
> Error: SYSTEM ERROR: DrillRuntimeException: Failure while materializing
> expression in constant expression evaluator [CASE(false, =(null, /(/(2016,
> 9), 22)), =(CAST('2016/09/22'):DATE NOT NULL, /(/(2016, 9), 22)))]. Errors:
> Error in expression at index -1. Error: Missing function implementation:
> [castTIMESTAMP(INT-REQUIRED)]. Full expression: --UNKNOWN EXPRESSION--.
> Error in expression at index -1. Error: Missing function implementation:
> [castTIMESTAMP(INT-REQUIRED)]. Full expression: --UNKNOWN EXPRESSION--.
> {noformat}
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