Yuming Wang created SPARK-27878:
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Summary: 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
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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