insert datasource table may all null when select from view on parquet

val path = "/tmp/spark/parquet"
val cnt = 30
spark.range(cnt).selectExpr("cast(id as bigint) as col1", "cast(id as bigint) as col2").write.mode("overwrite").parquet(path)
spark.sql(s"CREATE TABLE table1(col1 bigint, col2 bigint) using parquet location '$path'")
spark.sql("create view view1 as select col1, col2 from table1 where col1 > -20")
spark.sql("create table table2 (COL1 BIGINT, COL2 BIGINT) using parquet")
spark.sql("insert overwrite table table2 select COL1, COL2 from view1")
spark.table("table2").show

scala> val path = "/tmp/spark/orc"
scala> val cnt = 30
scala> spark.range(cnt).selectExpr("cast(id as bigint) as col1", "cast(id as bigint) as col2").write.mode("overwrite").orc(path)
scala> spark.sql(s"CREATE TABLE table1(col1 bigint, col2 bigint) using orc location '$path'")
scala> spark.sql("create view view1 as select col1, col2 from table1 where col1 > -20")
scala> spark.sql("create table table2 (COL1 BIGINT, COL2 BIGINT) using orc")
scala> spark.sql("insert overwrite table table2 select COL1, COL2 from view1")
scala> spark.table("table2").show
+----+----+
|COL1|COL2|
+----+----+
|  15|  15|
|  16|  16|
|  17|  17|
...