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https://issues.apache.org/jira/browse/SPARK-28093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899333#comment-16899333
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Dongjoon Hyun commented on SPARK-28093:
---------------------------------------
I removed `2.4.4` from the fixed version since this is reverted.
> Built-in function trim/ltrim/rtrim has bug when using trimStr
> -------------------------------------------------------------
>
> Key: SPARK-28093
> URL: https://issues.apache.org/jira/browse/SPARK-28093
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.4.0, 2.4.1, 2.4.2, 2.4.3
> Reporter: Yuming Wang
> Assignee: Yuming Wang
> Priority: Major
> Labels: release-notes
> Fix For: 3.0.0
>
>
> {noformat}
> spark-sql> SELECT trim('yxTomxx', 'xyz'), trim('xxxbarxxx', 'x');
> z
> spark-sql> SELECT ltrim('zzzytest', 'xyz'), ltrim('xyxXxyLAST WORD', 'xy');
> xyz
> spark-sql> SELECT rtrim('testxxzx', 'xyz'), rtrim('TURNERyxXxy', 'xy');
> xy
> spark-sql>
> {noformat}
> {noformat}
> postgres=# SELECT trim('yxTomxx', 'xyz'), trim('xxxbarxxx', 'x');
> btrim | btrim
> -------+-------
> Tom | bar
> (1 row)
> postgres=# SELECT ltrim('zzzytest', 'xyz'), ltrim('xyxXxyLAST WORD', 'xy');
> ltrim | ltrim
> -------+--------------
> test | XxyLAST WORD
> (1 row)
> postgres=# SELECT rtrim('testxxzx', 'xyz'), rtrim('TURNERyxXxy', 'xy');
> rtrim | rtrim
> -------+-----------
> test | TURNERyxX
> (1 row)
> {noformat}
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