John Omernik created HIVE-3979:
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Summary: Provide syntax for unescaped regex on rlike, and other
regexp_* functions
Key: HIVE-3979
URL: https://issues.apache.org/jira/browse/HIVE-3979
Project: Hive
Issue Type: New Feature
Components: UDF
Affects Versions: 0.10.0
Environment: All Queries, JDBC and cli
Reporter: John Omernik
Fix For: 0.11.0
To make hive more intuitive, can we provide a syntax for hive functions that
when encompassing a regex, that regex doesn't have to the standard hive double
escape? For example
column rlike '\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}'
could become
column rlike '/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/'
In this case, just using PERL's regex brackets, but could be anything...
The point is to be able to take a standard JAVA/Perl type regex and cut and
paste it into a query. This would allow for faster query development, more
mainstream adoption by those with regex experience, and intuitive transition to
hive query writing.
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