Takuya Ueshin created SPARK-28052:
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Summary: ArrayExists should follow the three-valued boolean logic.
Key: SPARK-28052
URL: https://issues.apache.org/jira/browse/SPARK-28052
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.4.3
Reporter: Takuya Ueshin
Currently {{ArrayExists}} always returns boolean values (if the arguments are
not null), but it should follow the three-valued boolean logic:
- {{true}} if the predicate holds {{true}}
- otherwise, {{null}} if the predicate holds {{null}}
- otherwise, {{false}}
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