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Posted to issues@calcite.apache.org by "Justin Swett (Jira)" <ji...@apache.org> on 2019/09/24 21:19:00 UTC

[jira] [Created] (CALCITE-3370) Emulate NULL direction for MSSQL

Justin Swett created CALCITE-3370:
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             Summary: Emulate NULL direction for MSSQL
                 Key: CALCITE-3370
                 URL: https://issues.apache.org/jira/browse/CALCITE-3370
             Project: Calcite
          Issue Type: Task
            Reporter: Justin Swett


MSSQL cannot handle NULLS LAST/FIRST and should emulate the NULLS LAST/FIRST in order by, i.e.

--for nulls last

select [column] from [table]  ORDER BY CASE WHEN [column] IS NULL THEN 1 ELSE 0 END, [column]"

--for nulls first

select [column] from [table]  ORDER BY CASE WHEN [column] IS NULL THEN 0 ELSE 1 END, [column]"



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