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From "Padma Penumarthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-5899) Simple pattern matchers can work with DrillBuf directly
Date Sat, 28 Oct 2017 03:47:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-5899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Padma Penumarthy updated DRILL-5899:
------------------------------------
    Summary: Simple pattern matchers can work with DrillBuf directly  (was: Simple pattern
matchers can work with DrillBuf directly instead of CharSequence Wrapper)

> Simple pattern matchers can work with DrillBuf directly
> -------------------------------------------------------
>
>                 Key: DRILL-5899
>                 URL: https://issues.apache.org/jira/browse/DRILL-5899
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow
>            Reporter: Padma Penumarthy
>            Assignee: Padma Penumarthy
>            Priority: Critical
>
> For simple pattern matcher, we do not have to do isAscii check. 
> UTF-8 encoding ensures that no UTF-8 character is a prefix of any other valid character.
So, for the 4 simple patterns we have i.e. startsWith, endsWith, contains and constant, we
can get rid of this check. This will help improve performance. 



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