srowen commented on issue #26825: [SPARK-30193]Wrong 2nd argument type. Found: 'org.apache.spark.sql.Column', required: 'scala.collection.Seq<org.apache.spark.sql.Column>' URL: https://github.com/apache/spark/pull/26825#issuecomment-563666186 First, I'd check whether the Jenkins builds are green. If they are, then it's not a Spark problem, almost surely. You can be a little more conservative about opening PRs and JIRAs there. I'm not sure what you're asking... if someone fixes an issue before you do, is that a problem? no, just happens. It's rare anyway, unless it's an obvious build breakage. If someone proposes a fix for a JIRA you reported? also not necessarily a problem; work together on the best solution. You can say "I'm working on this" sure, but we don't particularly encourage anyone to own the solution. We do need people to collaborate in good faith towards one solution. What JIRA are we talking about? If you're asking about removing unused imports, I wouldn't bother. Separately Dongjoon was trying to reenable lint checks for unused imports today, but I presume he'd fix all of those in that same PR.
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