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Posted to issues@spark.apache.org by "Yuming Wang (JIRA)" <ji...@apache.org> on 2019/06/10 01:05:00 UTC

[jira] [Created] (SPARK-27987) Support POSIX Regular Expressions

Yuming Wang created SPARK-27987:
-----------------------------------

             Summary: Support POSIX Regular Expressions
                 Key: SPARK-27987
                 URL: https://issues.apache.org/jira/browse/SPARK-27987
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Yuming Wang


POSIX regular expressions provide a more powerful means for pattern matching than the LIKE and SIMILAR TO operators. Many Unix tools such as egrep, sed, or awk use a pattern matching language that is similar to the one described here.
||Operator||Description||Example||
|{{~}}|Matches regular expression, case sensitive|{{'thomas' ~ '.*thomas.*'}}|
|{{~*}}|Matches regular expression, case insensitive|{{'thomas' ~* '.*Thomas.*'}}|
|{{!~}}|Does not match regular expression, case sensitive|{{'thomas' !~ '.*Thomas.*'}}|
|{{!~*}}|Does not match regular expression, case insensitive|{{'thomas' !~* '.*vadim.*'}}|



https://www.postgresql.org/docs/current/functions-matching.html#FUNCTIONS-POSIX-REGEXP



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