[jira] [Created] (CALCITE-4282) Promote the window table functions window attribute data type with precision 3

["Danny Chen (Jira)" <ji...@apache.org>]

Danny Chen created CALCITE-4282:
-----------------------------------

             Summary: 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
             Fix For: 1.26.0


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



--
This message was sent by Atlassian Jira
(v8.3.4#803005)