Xiao Li created SPARK-23909:
-------------------------------
Summary: High-order function: filter(array<T>, function<T,
boolean>) → array<T>
Key: SPARK-23909
URL: https://issues.apache.org/jira/browse/SPARK-23909
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 2.3.0
Reporter: Xiao Li
Ref: https://prestodb.io/docs/current/functions/array.html
Constructs an array from those elements of array for which function returns
true:
{noformat}
SELECT filter(ARRAY [], x -> true); -- []
SELECT filter(ARRAY [5, -6, NULL, 7], x -> x > 0); -- [5, 7]
SELECT filter(ARRAY [5, NULL, 7, NULL], x -> x IS NOT NULL); -- [5, 7]
{noformat}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
