Kent Yao created SPARK-34164:
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Summary: Improve write side varchar check to visit only last few
tailing spaces
Key: SPARK-34164
URL: https://issues.apache.org/jira/browse/SPARK-34164
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.1.0, 3.2.0
Reporter: Kent Yao
For varchar(N), we currently trim all spaces first to check whether the
remained length exceeds, it not necessary to visit them all but at most to
those after N.
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