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Posted to issues@flink.apache.org by "Ramin Gharib (Jira)" <ji...@apache.org> on 2026/05/11 07:42:00 UTC

[jira] [Created] (FLINK-39652) Improve documentation for regexp functions

Ramin Gharib created FLINK-39652:
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             Summary: Improve documentation for regexp functions
                 Key: FLINK-39652
                 URL: https://issues.apache.org/jira/browse/FLINK-39652
             Project: Flink
          Issue Type: Sub-task
          Components: Documentation, Table SQL / API
            Reporter: Ramin Gharib


REGEXP_EXTRACT, REGEXP_REPLACE, and REGEXP docs omit NULL handling, invalid-regex behavior, and argument types. After the umbrella's plan-time validation lands, literal regexes that fail to compile become ValidationExceptions at planning time — this needs to be documented.



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