ovr opened a new pull request #1660: URL: https://github.com/apache/arrow-datafusion/pull/1660
# Which issue does this PR close? In https://github.com/apache/arrow-datafusion/pull/1621 PR, @xudong963 found an incorrect behavior in `substr` function with negative starting position. Closes #. # Rationale for this change Use the same behavior as PostgreSQL provides. # What changes are included in this PR? Fix # Are there any user-facing changes? It's a fix, not a breaking change, because DF uses PostgreSQL dialect. -- 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...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
