Github user petermaxlee commented on a diff in the pull request:
https://github.com/apache/spark/pull/14364#discussion_r72379517
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala
---
@@ -408,8 +409,21 @@ object FunctionRegistry {
expression[BitwiseAnd]("&"),
expression[BitwiseNot]("~"),
expression[BitwiseOr]("|"),
- expression[BitwiseXor]("^")
-
+ expression[BitwiseXor]("^"),
+
+ // Cast aliases (SPARK-16730)
+ castAlias("boolean", BooleanType),
+ castAlias("tinyint", ByteType),
+ castAlias("smallint", ShortType),
+ castAlias("int", IntegerType),
+ castAlias("bigint", LongType),
+ castAlias("float", FloatType),
+ castAlias("double", DoubleType),
+ castAlias("decimal", DecimalType.USER_DEFAULT),
--- End diff --
This is not what Hive's default does, but what Spark SQL's cast default.
I think it is a bug, but I'm not sure if it is intentional. I suggest we
change this in a separate pull request, since there is more than one place to
check.
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