Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/12030#discussion_r57774941
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/InferSchema.scala
---
@@ -135,11 +136,15 @@ private[sql] object InferSchema {
// when we see a Java BigInteger, we use DecimalType.
case BIG_INTEGER | BIG_DECIMAL =>
val v = parser.getDecimalValue
- DecimalType(v.precision(), v.scale())
+ // Creating `DecimalType` here can fail when precision is
bigger than 38.
+ Try(DecimalType(v.precision(),
v.scale())).getOrElse(DoubleType)
--- End diff --
maybe use the more traditional try catch to improve performance a bit.
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