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https://issues.apache.org/jira/browse/HIVE-13204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-13204:
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Attachment: HIVE-13204.2.patch
> Vectorization: Add ChainedCheckerFactory for LIKE
> --------------------------------------------------
>
> Key: HIVE-13204
> URL: https://issues.apache.org/jira/browse/HIVE-13204
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Affects Versions: 2.1.0
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: HIVE-13204.1.patch, HIVE-13204.2.patch,
> regex-cpu-like.png
>
>
> Currently, Vectorization runs through a UTF-8 decode to produce a String &
> then check for mildly complex patterns like "http://%.exe"; using a Regex.
> Since this pattern doesn't need any backtracking patterns, using a full
> fledged Regex is too expensive.
> !regex-cpu-like.png!
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