GitHub user cloud-fan opened a pull request: https://github.com/apache/spark/pull/23266
[SPARK-26313][SQL] move read related methods from Table to read related mix-in traits ## What changes were proposed in this pull request? As discussed in https://github.com/apache/spark/pull/23208/files#r239684490 , we should put read related methods in read related mix-in traits like `SupportsBatchRead`, to support write-only table. In the `Append` operator, we should skip schema validation if the table is write-only. This will be done when we finish the write API refactor in https://github.com/apache/spark/pull/23208/ ## How was this patch tested? existing tests. You can merge this pull request into a Git repository by running: $ git pull https://github.com/cloud-fan/spark ds-read Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/23266.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 #23266 ---- commit da520cc6e7daa36c7d7fabdb0a08d4b4341250b9 Author: Wenchen Fan <wenchen@...> Date: 2018-12-09T08:32:51Z move read related methods from Table to read related mix-in traits ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org