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https://issues.apache.org/jira/browse/CALCITE-4698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17702874#comment-17702874
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Julian Hyde commented on CALCITE-4698:
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Until CALCITE-5266 is fixed, max precision needs to remain 3.
> Return type of timestampadd(..., ..., timestamp_ltz) should be timestamp_ltz
> instead of timestamp
> -------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4698
> URL: https://issues.apache.org/jira/browse/CALCITE-4698
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Caizhi Weng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently {{SqlTimestampAddFunction#deduceType}} does not deal with
> timestamp_ltz type correctly. Return type of {{timestampadd(..., ...,
> timestamp_ltz)}} will be timestamp but it should be timestamp_ltz.
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