Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/4004#discussion_r22812579
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala
---
@@ -54,6 +54,17 @@ object HiveTypeCoercion {
Some(if (valueTypes.size == 0) NullType else valueTypes.head)
}
}
+
+ // Conversion rules for integer types into fixed-precision decimals
+ val intTypeToFixed: Map[DataType, DecimalType] = Map(
+ ByteType -> DecimalType(3, 0),
+ ShortType -> DecimalType(5, 0),
+ IntegerType -> DecimalType(10, 0),
+ LongType -> DecimalType(20, 0)
--- End diff --
`DecimalType(19, 0)`?
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