Github user maropu commented on the issue:
https://github.com/apache/spark/pull/16030
Thanks! I found another wired behaviour related to this issue. Is this
expected? or, should we fix?
```
scala> import org.apache.spark.sql.types._
scala> val schema = new StructType().add("a", LongType).add("b",
IntegerType)
scala> case class A(a: Long, b: Int)
scala> val as = Seq(A(1, 2))
scala>
spark.createDataFrame(as).write.parquet("/Users/maropu/Desktop/data/a=1/")
scala> val df =
spark.read.schema(schema).parquet("/Users/maropu/Desktop/data/")
scala> df.printSchema
root
|-- b: integer (nullable = true)
|-- a: long (nullable = true)
scala> val df = spark.read.parquet("/Users/maropu/Desktop/data/")
scala> df.printSchema
root
|-- a: integer (nullable = true)
|-- b: integer (nullable = true)
```
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