Github user jaltekruse commented on the issue: https://github.com/apache/drill/pull/518 After this was discussed at the Hangout a few weeks back, I had been thinking about it more. My initial request was for warnings to be returned along with query results. Some initial work was posted last fall to add warnings to the RPC protocol, but unfortunately it was not brought to completion. These kinds of warnings can be received by JDBC and ODBC sources and many tools show them to users. https://github.com/apache/drill/pull/263 In the hangout we discussed that this changeset is currently logging when part of a file is ignored. I don't believe that there is currently an expectation that users should have to grep through a log file to find out any additional information about the execution of a successful query, the log files are there for admins to debug system issues. I still think it would be good to have a way to remove the need to look through the log file to see if this behavior was used in a query, but as there wasn't a lot of concern expressed by others when we discussed it, I'm changing my vote to a +0.
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