João Victor Huguenin created ARROW-14389:
--------------------------------------------
Summary: [C++][Gandiva] Fix performance bug with LIKE expressions
with reserved characters
Key: ARROW-14389
URL: https://issues.apache.org/jira/browse/ARROW-14389
Project: Apache Arrow
Issue Type: Bug
Components: C++ - Gandiva
Reporter: João Victor Huguenin
Assignee: João Victor Huguenin
Seeing dramatic differences in Gandiva processing time during filter operations
for queries with a LIKE filter on a character field with a reserved character
(-,/& etc). The version with a reserved character in the string is considerably
slower than a similar filter without a reserved character. For patterns like
%abc% and %ab-c%, the latter wasn't being optimized to become an is_substr
expression because of the regex used to identify those cases.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
