Github user jodersky commented on a diff in the pull request:
https://github.com/apache/spark/pull/15257#discussion_r81212761
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/literals.scala
---
@@ -46,12 +57,17 @@ object Literal {
case s: String => Literal(UTF8String.fromString(s), StringType)
case b: Boolean => Literal(b, BooleanType)
case d: BigDecimal => Literal(Decimal(d),
DecimalType(Math.max(d.precision, d.scale), d.scale))
- case d: java.math.BigDecimal =>
+ case d: JavaBigDecimal =>
Literal(Decimal(d), DecimalType(Math.max(d.precision, d.scale),
d.scale()))
case d: Decimal => Literal(d, DecimalType(Math.max(d.precision,
d.scale), d.scale))
case t: Timestamp => Literal(DateTimeUtils.fromJavaTimestamp(t),
TimestampType)
case d: Date => Literal(DateTimeUtils.fromJavaDate(d), DateType)
case a: Array[Byte] => Literal(a, BinaryType)
+ case a: Array[_] =>
--- End diff --
I tried using `ScalaReflection.dataTypeFor` directly (I first had to make
it public, but I think that's a totally valid option).
Something like
`ScalaReflection.dataTypeFor(rm.classSymbol(a.getClass).selfType)` works
perfectly.
I'm not sure why `schemaFor` fails, it may be a bug
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