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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2024/08/13 15:46:00 UTC
[jira] [Resolved] (SPARK-49207) Fix SplitPart one-to-many case mapping (UTF8_LCASE)
[ https://issues.apache.org/jira/browse/SPARK-49207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-49207.
---------------------------------
Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 47715
[https://github.com/apache/spark/pull/47715]
> Fix SplitPart one-to-many case mapping (UTF8_LCASE)
> ---------------------------------------------------
>
> Key: SPARK-49207
> URL: https://issues.apache.org/jira/browse/SPARK-49207
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Uroš Bojanić
> Assignee: Uroš Bojanić
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Fix the following string expressions to handle one-to-many case mapping properly:
> * SplitPart
> * StringSplitSQL
>
> Examples of incorrect results (under {{UTF8_LCASE}} collation):
> {code:java}
> SplitPart("Ai\u0307B", "İ", 2) // returns: "\u0307B" (incorrect), instead of: "B" (correct)
> SplitPart("AİB", "i\u0307", 1) // returns: "AİB", instead of: "A", "B" (correct){code}
>
> {code:java}
> StringSplitSQL("Ai\u0307B", "İ") // returns: ["A", "\u0307B"] (incorrect), instead of: ["A", "B"] (correct)
> StringSplitSQL("AİB", "i\u0307") // returns: ["AİB"] (incorrect), instead of: ["A", "B"] (correct){code}
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