GitHub user cloud-fan opened a pull request: https://github.com/apache/spark/pull/20485
[SPARK-23315][SQL] failed to get output from canonicalized data source v2 related plans ## What changes were proposed in this pull request? `DataSourceV2Relation` keeps a `fullOutput` and resolves the real output on demand by column name lookup. This will be broken after we canonicalize the plan, because all attribute names become "None". To fix this, `DataSourceV2Relation` should just keep `output`, and update the `output` when doing column pruning. ## How was this patch tested? a new test case You can merge this pull request into a Git repository by running: $ git pull https://github.com/cloud-fan/spark canonicalize Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/20485.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #20485 ---- commit 75950a1725f01c31764ac31d16acd6e2078956c6 Author: Wenchen Fan <wenchen@...> Date: 2018-02-02T07:53:07Z failed to get output from canonicalized data source v2 related plans ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org