[GitHub] spark pull request #16339: [SPARK-18917][SQL] Add Skip Partition Check Flag ...

[cloud-fan <gi...@git.apache.org>]

Github user cloud-fan commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16339#discussion_r96208357
  
    --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala ---
    @@ -445,21 +445,28 @@ case class DataSource(
     
             // If we are appending to a table that already exists, make sure the partitioning matches
             // up.  If we fail to load the table for whatever reason, ignore the check.
    -        if (mode == SaveMode.Append) {
    --- End diff --
    
    shall we just remove this check? it's too expensive. cc @marmbrus 


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