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https://issues.apache.org/jira/browse/SPARK-27878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27878:
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Assignee: (was: Apache Spark)
> 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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