Github user koertkuipers commented on a diff in the pull request:
https://github.com/apache/spark/pull/22123#discussion_r211309642
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/csv/CSVSuite.scala
---
@@ -1603,6 +1603,39 @@ class CSVSuite extends QueryTest with
SharedSQLContext with SQLTestUtils with Te
.exists(msg => msg.getRenderedMessage.contains("CSV header does not
conform to the schema")))
}
+ test("SPARK-25134: check header on parsing of dataset with projection
and column pruning") {
--- End diff --
it seems enforceSchema always kind of "works" because it simply means it
ignores the headers.
what do we expect to verify in the test?
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