Dandandan edited a comment on issue #2097: URL: https://github.com/apache/arrow-datafusion/issues/2097#issuecomment-1079658655
Hi @silence-coding thanks for opening an issue. Without an `ORDER BY` clause, the query engine is free to return the rows in any order. The reason it is returning the rows in different order is the parallel execution of DataFusion: execution on one file/partition might finish sooner than the other, returning the rows earlier and in a different order. -- 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
