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From "jiaan.geng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-27924) ANSI SQL: Boolean Test
Date Wed, 03 Jul 2019 09:41:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-27924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16877683#comment-16877683
] 

jiaan.geng commented on SPARK-27924:
------------------------------------

I'm working on.

> ANSI SQL: Boolean Test
> ----------------------
>
>                 Key: SPARK-27924
>                 URL: https://issues.apache.org/jira/browse/SPARK-27924
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> {quote}<boolean test> ::=
>   <boolean primary> [ IS [ NOT ] <truth value> ]
> <truth value> ::=
>     TRUE
>   | FALSE
>   | UNKNOWN{quote}
>  
> Currently, the following DBMSs support the syntax:
>  * PostgreSQL: [https://www.postgresql.org/docs/9.1/functions-comparison.html]
>  * Hive: https://issues.apache.org/jira/browse/HIVE-13583
>  * Redshift: [https://docs.aws.amazon.com/redshift/latest/dg/r_Boolean_type.html]
>  * Vertica: [https://www.vertica.com/docs/9.2.x/HTML/Content/Authoring/SQLReferenceManual/LanguageElements/Predicates/Boolean-predicate.htm]



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