Serge Rielau created SPARK-58799:
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Summary: R1: transforming string expressions return STRING
Key: SPARK-58799
URL: https://issues.apache.org/jira/browse/SPARK-58799
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 5.0.0
Reporter: Serge Rielau
upper/substr/concat/||/... return plain STRING. Example:
'he'::CHAR(4)||'llo'::CHAR(3) => 'he llo' typed STRING.
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