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https://issues.apache.org/jira/browse/CALCITE-4282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Danny Chen resolved CALCITE-4282.
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Resolution: Fixed
Fixed in
[d70039d|https://github.com/apache/calcite/commit/d70039ddda15112a6398765073572605fb01e23c]
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> Promote the window table functions window attribute data type with precision 3
> ------------------------------------------------------------------------------
>
> Key: CALCITE-4282
> URL: https://issues.apache.org/jira/browse/CALCITE-4282
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.25.0
> Reporter: Danny Chen
> Assignee: Danny Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.26.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Now the {{window_start}} and {{window_end}} has a type of a Timestamp with
> default system precision. But, actually, many DB vendors has default
> precision as 6 (which is also defined in the SQL standard).
> We better promote the precision to 3 because:
> 1. For windowing, time unit as millisecond is enough
> 2. Make the precision deterministic instead of overriding by each engine's
> default one
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