[jira] [Created] (HIVE-14349) Vectorization: LIKE should anchor the regexes

["Gopal V (JIRA)" <ji...@apache.org>]

Gopal V created HIVE-14349:
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             Summary: Vectorization: LIKE should anchor the regexes
                 Key: HIVE-14349
                 URL: https://issues.apache.org/jira/browse/HIVE-14349
             Project: Hive
          Issue Type: Bug
          Components: UDF, Vectorization
    Affects Versions: 1.2.1, 2.2.0
            Reporter: Gopal V
            Assignee: Gopal V
             Fix For: 1.3.0, 2.2.0, 2.1.1


RLIKE works like contains() and LIKE works like matches().

The UDFLike LIKE -> Regex conversion returns unanchored regexes making the vectorized LIKE behave like RLIKE.

{code}
create temporary table x (a string) stored as orc;
insert into x values('XYZa'), ('badXYZa');

select * from x where a LIKE 'XYZ%a%' order by 1;
OK
XYZa
badXYZa
Time taken: 4.029 seconds, Fetched: 2 row(s)
{code}



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