zanmato1984 commented on code in PR #43832: URL: https://github.com/apache/arrow/pull/43832#discussion_r1888905845
########## cpp/src/arrow/acero/swiss_join.cc: ########## @@ -267,98 +150,59 @@ Status RowArray::DecodeSelected(ResizableArrayData* output, int column_id, // ARROW_ASSIGN_OR_RAISE(KeyColumnMetadata column_metadata, output->column_metadata()); + int num_rows_processed = 0; Review Comment: I'm afraid that is not the case. In the AVX2 case, the AVX2 code only processes elements of multiple of 8, and `num_rows_processed` is used to guide the subsequent non-AVX2 code to process the remaining (tail) rows. -- 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