sonhmai opened a new pull request, #470: URL: https://github.com/apache/datafusion-comet/pull/470
## Which issue does this PR close? Closes #463 ## Rationale for this change Fix for substring with negative indices produces incorrect results ## What changes are included in this PR? - negative len in substring(child, start, len) should be >= 0 - test cases ## How are these changes tested? added more test cases that would fail without the change. -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
