neilconway opened a new pull request, #20328: URL: https://github.com/apache/datafusion/pull/20328
## Which issue does this PR close? - Closes #20327 ## Rationale for this change By default, btrim(), ltrim(), and rtrim() trim space characters; it is also reasonably common for queries to specify a non-default trim pattern that is still a single ASCII character. We can optimize for this case by doing a byte-level scan, rather than invoking the more heavyweight std::string machinery used for more complex trim scenarios. ## What changes are included in this PR? Add a benchmark for trimming spaces, and implement the optimization described above. ## Are these changes tested? Yes, and benchmarked. ## Are there any user-facing changes? No. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
