Marek Novotny created SPARK-24636:
-------------------------------------
Summary: Type Coercion of Arrays for array_join Function
Key: SPARK-24636
URL: https://issues.apache.org/jira/browse/SPARK-24636
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.0
Reporter: Marek Novotny
The description of SPARK-23916 refers to the implementation of {{array_join}}
function in Presto. This implementation accepts an arbitrary arrays of
primitive types.:
{{presto> SELECT array_join(ARRAY [1, 2, 3], ', ');}}
{{_col0}}
{{---------}}
{{1, 2, 3}}
{{(1 row)}}
The goal of this Jira ticket is to change the current implementation of
array_join function to support other types of arrays.
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