Jefffrey commented on issue #3803: URL: https://github.com/apache/arrow-rs/issues/3803#issuecomment-1456915003
If parity with Postgres is desired, then this would be considered a bug. Relevant extract: > If a match is found, and the `pattern` contains no parenthesized subexpressions, then the result is a single-element text array containing the substring matching the whole pattern From: https://www.postgresql.org/docs/current/functions-matching.html Also it might be somewhat confusing as returning a not-null value in the output ListArray indicates a match was found (else it would be null instead of a StringArray), but resultant StringArray itself is empty without the match. The behaviour seems somewhat inconsistent? -- 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]
