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Posted to issues@calcite.apache.org by "Jiefan Li (Jira)" <ji...@apache.org> on 2021/06/28 20:31:00 UTC

[jira] [Updated] (CALCITE-4669) Allow empty MAP[] constructors

     [ https://issues.apache.org/jira/browse/CALCITE-4669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jiefan Li updated CALCITE-4669:
-------------------------------
    Description: 
Similar ticket: https://issues.apache.org/jira/browse/CALCITE-3504

Currently a MAP expression requires at least 2 element. However, Hive supports empty MAP() syntax.
Please allow empty MAP expressions:
{code:sql}
SELECT MAP[] FROM foo;
{code}

cc: [~wmoustafa]

  was:
Similar ticket: https://issues.apache.org/jira/browse/CALCITE-3504

Currently an MAP expression requires at least 2 element. However, Hive supports empty MAP() syntax.
Please allow empty MAP expressions:
{code:sql}
SELECT MAP[] FROM foo;
{code}

cc: [~wmoustafa]


> Allow empty MAP[] constructors
> ------------------------------
>
>                 Key: CALCITE-4669
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4669
>             Project: Calcite
>          Issue Type: Wish
>            Reporter: Jiefan Li
>            Priority: Major
>
> Similar ticket: https://issues.apache.org/jira/browse/CALCITE-3504
> Currently a MAP expression requires at least 2 element. However, Hive supports empty MAP() syntax.
> Please allow empty MAP expressions:
> {code:sql}
> SELECT MAP[] FROM foo;
> {code}
> cc: [~wmoustafa]



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