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https://issues.apache.org/jira/browse/ASTERIXDB-2685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17162323#comment-17162323
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ASF subversion and git services commented on ASTERIXDB-2685:
------------------------------------------------------------
Commit 72abd30a585da23e007b4d22daa712eb751b426e in asterixdb's branch
refs/heads/master from Hussain Towaileb
[ https://gitbox.apache.org/repos/asf?p=asterixdb.git;h=72abd30 ]
[ASTERIXDB-2685][FUN] regex-split avoid creating unnecessary objects if not
needed
- user model changes: no
- storage format changes: no
- interface changes: no
Details:
- Switched to using the RegExpMatcher class to avoid creating
unnecessary objects (compiling patterns) if the next tuple
pattern is similar to the previous one.
Change-Id: Ie6920fb049f7b333e3d41de154839d83b5280926
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/7223
Integration-Tests: Jenkins <jenk...@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenk...@fulliautomatix.ics.uci.edu>
Reviewed-by: Hussain Towaileb <hussai...@gmail.com>
Reviewed-by: Dmitry Lychagin <dmitry.lycha...@couchbase.com>
> Regexp_split implement inside RegExpMatcher class
> -------------------------------------------------
>
> Key: ASTERIXDB-2685
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2685
> Project: Apache AsterixDB
> Issue Type: Task
> Reporter: Hussain Towaileb
> Assignee: Hussain Towaileb
> Priority: Major
>
> Currently, the regex_split function is using the Java String.split behavior,
> which compiles the regex with each call, creating an extra object. This could
> be done inside our RegExpMatcher which re-uses the existing regex part if
> it's the same, avoiding the creation of a new object sometimes.
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