Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/10757#discussion_r51201446
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/orc/OrcSourceSuite.scala ---
@@ -131,17 +131,17 @@ abstract class OrcSuite extends QueryTest with
TestHiveSingleton with BeforeAndA
val df = sql(
"""
|SELECT
- | CAST(null as TINYINT),
- | CAST(null as SMALLINT),
- | CAST(null as INT),
- | CAST(null as BIGINT),
- | CAST(null as FLOAT),
- | CAST(null as DOUBLE),
- | CAST(null as DECIMAL(7,2)),
- | CAST(null as TIMESTAMP),
- | CAST(null as DATE),
- | CAST(null as STRING),
- | CAST(null as VARCHAR(10))
+ | CAST(null as TINYINT) as c0,
+ | CAST(null as SMALLINT) as c1,
+ | CAST(null as INT) as c2,
+ | CAST(null as BIGINT) as c3,
+ | CAST(null as FLOAT) as c4,
+ | CAST(null as DOUBLE) as c5,
+ | CAST(null as DECIMAL(7,2)) as c6,
+ | CAST(null as TIMESTAMP) as c7,
+ | CAST(null as DATE) as c8,
+ | CAST(null as STRING) as c9,
+ | CAST(null as VARCHAR(10)) as c10
--- End diff --
Aliases are added mostly for the last two fields: `VARCHAR` is equivalent
to `STRING` for Spark SQL, so the last two fields actually have exactly the
same column names.
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