alamb commented on issue #8492: URL: https://github.com/apache/arrow-datafusion/issues/8492#issuecomment-1857813613
I looked into the regular expression matching code in DataFusion -- there is a lot of room for improvement: It translates each argument into an array (even when the argument is a constant). Thus DataFusion is effectively compiling the regular expression *for each row* (not even each batch) which is unsurprisingly quite expensive This is very fixable but the way the functions are wired in will take some finagling I think -- 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]
