Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/13727
The following test case is for SPARK-16007. I can confirm this PR already
fixes the issue.
```scala
test("schema checking") {
val schema: StructType = new StructType().add("s", "string")
assert(spark.read.schema(schema).csv().schema === schema)
assert(spark.read.schema(schema).json().schema === schema)
assert(spark.read.schema(schema).parquet().schema === schema)
assert(spark.read.schema(schema).text().schema === schema)
assert(spark.read.schema(schema).orc().schema === schema)
}
```
Since the ORC data source must be used with Hive support enabled, you can
comment the last line out. Or move it to another test case in Hive.
Please let me know if anything is needed. Thanks!
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