[jira] [Created] (HIVE-15229) 'like any' and 'like all' operators in hive

["Simanchal Das (JIRA)" <ji...@apache.org>]

Simanchal Das created HIVE-15229:
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             Summary: 'like any' and 'like all' operators in hive
                 Key: HIVE-15229
                 URL: https://issues.apache.org/jira/browse/HIVE-15229
             Project: Hive
          Issue Type: New Feature
          Components: Operators
            Reporter: Simanchal Das
            Assignee: Simanchal Das
            Priority: Minor


In Teradata 'like any' and 'like all' operators are mostly used when we are matching a text field with numbers of patterns.

'like any' and 'like all' operator are equivalents of multiple like operator like example below.

{noformat}
--like any
select col1 from table1 where col2 like any ('%accountant%', '%accounting%', '%retail%', '%bank%', '%insurance%');

--Can be written using multiple like condition 
select col1 from table1 where col2 like '%accountant%' or col2 like '%accounting%' or col2 like '%retail%' or col2 like '%bank%' or col2 like '%insurance%' ;

--like all
select col1 from table1 where col2 like all ('%accountant%', '%accounting%', '%retail%', '%bank%', '%insurance%');

--Can be written using multiple like operator 
select col1 from table1 where col2 like '%accountant%' and col2 like '%accounting%' and col2 like '%retail%' and col2 like '%bank%' and col2 like '%insurance%' ;
{noformat}

Problem statement:

Now a days so many data warehouse projects are being migrated from Teradata to Hive.
Always Data engineer and Business analyst are searching for these two operator.
If we introduce these two operator in hive then so many scripts will be migrated smoothly instead of converting these operators to multiple like operators.




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