pitrou commented on issue #46177: URL: https://github.com/apache/arrow/issues/46177#issuecomment-2841925244
> 1-Why is no buffer data allocated for string data types? For compute functions like `ascii_upper`, can the output data buffer length be inferred from the input? Because the output length is function- and data-dependent, while for fixed-width buffers the output length is only determined by the input length. > 2-Do Scalar compute functions use multi-threading? No, compute functions do not use multi-threading. Multi-threading is typically used at a higher level, for example in an execution engine that would call compute functions. -- 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
