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https://issues.apache.org/jira/browse/HIVE-542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuntao Jia updated HIVE-542:
----------------------------
Attachment: HIVE-542.1.patch
I tried to make the function checkSimplePattern() static. However, there are
two member variables modified in that function, so I left it unchanged. If
static is necessary, I can decompose it to two functions. One function checks
if the pattern is a simple pattern, the second function finds out the strings
to match in that pattern.
> Faster String Like
> ------------------
>
> Key: HIVE-542
> URL: https://issues.apache.org/jira/browse/HIVE-542
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.4.0
> Reporter: Zheng Shao
> Attachments: HIVE-542.1.patch
>
>
> Currently Hive uses regular expression to do string like which is really
> really slow. We should implement "LIKE" natively using Text.
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