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From "Takeshi Yamamuro (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-27878) Support ARRAY(sub-SELECT) expressions
Date Sun, 29 Dec 2019 00:44:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-27878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Takeshi Yamamuro updated SPARK-27878:
-------------------------------------
    Parent Issue: SPARK-30375  (was: SPARK-27764)

> Support ARRAY(sub-SELECT) expressions
> -------------------------------------
>
>                 Key: SPARK-27878
>                 URL: https://issues.apache.org/jira/browse/SPARK-27878
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> Construct an array from the results of a subquery. In this form, the array constructor
is written with the key word {{ARRAY}} followed by a parenthesized (not bracketed) subquery.
For example:
> {code:sql}
> SELECT ARRAY(SELECT oid FROM pg_proc WHERE proname LIKE 'bytea%');
>                                  array
> -----------------------------------------------------------------------
>  {2011,1954,1948,1952,1951,1244,1950,2005,1949,1953,2006,31,2412,2413}
> (1 row)
> {code}
> More details:
>  [https://www.postgresql.org/docs/9.3/sql-expressions.html#SQL-SYNTAX-ARRAY-CONSTRUCTORS]
> [https://github.com/postgres/postgres/commit/730840c9b649a48604083270d48792915ca89233]



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