Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/16481#discussion_r95070345 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala --- @@ -494,8 +500,13 @@ case class DataSource( catalogTable = catalogTable, fileIndex = fileIndex) sparkSession.sessionState.executePlan(plan).toRdd - // Replace the schema with that of the DataFrame we just wrote out to avoid re-inferring it. - copy(userSpecifiedSchema = Some(data.schema.asNullable)).resolveRelation() + if (isForWriteOnly) { + // Exit earlier and return null --- End diff -- Sure
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