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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2016/11/22 19:03:58 UTC

[jira] [Updated] (CALCITE-981) Push NULLS FIRST etc. down to JDBC adapter

     [ https://issues.apache.org/jira/browse/CALCITE-981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-981:
--------------------------------
    Component/s: jdbc-adapter

> Push NULLS FIRST etc. down to JDBC adapter
> ------------------------------------------
>
>                 Key: CALCITE-981
>                 URL: https://issues.apache.org/jira/browse/CALCITE-981
>             Project: Calcite
>          Issue Type: Bug
>          Components: jdbc-adapter
>            Reporter: Julian Hyde
>            Assignee: Julian Hyde
>
> If a JdbcSort has a RelFieldCollation.direction that is different from the JDBC source's default direction, we should generate NULLS FIRST or NULLS LAST.  
> If the source does not support that syntax, devise something else; e.g. {code}ORDER BY ISNULL(x), x{code} in MySQL; see http://jira.pentaho.com/browse/MONDRIAN-226.
> The dialect should know what each JDBC source's default direction is.



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