Yuming Wang created SPARK-25230:
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Summary: Upper behaves incorrect for string contains "ß"
Key: SPARK-25230
URL: https://issues.apache.org/jira/browse/SPARK-25230
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.3.1
Reporter: Yuming Wang
How to reproduce:
{code:sql}
spark-sql> SELECT upper('Haßler');
HASSLER
{code}
Mainstream databases returns {{HAßLER}}.
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