Balazs Hevele has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/23932 )

Change subject: IMPALA-12374: Optimize trailing/leading % in LIKE
......................................................................


Patch Set 9:

> Something went wrong with the newest patch, the benchmark run shows
 > the old values, as if the optimization were not taking effect.
 > Will upload a new patch when fixed.

Problem resolved: in Patch 6, an issue was introduced by mistake:
Replacing the part of the regex matching the trimmed string from ".*" to 
"[^%]*", but it can obviously contain the per cent character, e.g. in "%a%b%" 
where it should match "a%b"


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I37b472e056f791035d25633f17ad8a6e841cdd18
Gerrit-Change-Number: 23932
Gerrit-PatchSet: 9
Gerrit-Owner: Balazs Hevele <[email protected]>
Gerrit-Reviewer: Balazs Hevele <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Comment-Date: Tue, 10 Feb 2026 12:20:41 +0000
Gerrit-HasComments: No

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