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https://issues.apache.org/jira/browse/TAJO-958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-958:
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Fix Version/s: (was: 0.9.0)
> LIKE, REGEXP, and SIMILAR TO should support escape character.
> -------------------------------------------------------------
>
> Key: TAJO-958
> URL: https://issues.apache.org/jira/browse/TAJO-958
> Project: Tajo
> Issue Type: Bug
> Components: parser, planner/optimizer
> Reporter: Hyunsik Choi
>
> LIKE, REGEXP, and SIMILAR TO predicates use special characters to present
> pattern matching. But, in some cases, we want to use the special characters
> as just characters. For it, we need some escape feature for them.
> In SQL standards, ESCAPE is supported as the following syntax.
> http://savage.net.au/SQL/sql-2003-2.bnf.html#character%20like%20predicate%20part%202
> {noformat}
> expression LIKE pattern [ ESCAPE 'escape_character' ]
> {noformat}
> We need to support it.
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