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https://issues.apache.org/jira/browse/IMPALA-9531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17157239#comment-17157239
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Adam Tamas commented on IMPALA-9531:
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There was a possible index out of bounds problem here and it requires
IMPALA-9941 to correct this error.
> Drop support for "dateless timestamps"
> --------------------------------------
>
> Key: IMPALA-9531
> URL: https://issues.apache.org/jira/browse/IMPALA-9531
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Csaba Ringhofer
> Assignee: Adam Tamas
> Priority: Minor
> Fix For: Impala 4.0
>
>
> Currently cast("15:42:00" as timestamp) doesn't return NULL, but it should,
> as the resulting timestamps are more or less useless:
> - other fileformats than text do not support them
> - most built-in unctions don't support them - even those where it could make
> sense
> IMPALA-5942 contains more details about these issues.
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