Github user gengliangwang commented on a diff in the pull request:
https://github.com/apache/spark/pull/22037#discussion_r208699939
--- Diff:
external/avro/src/main/scala/org/apache/spark/sql/avro/AvroSerializer.scala ---
@@ -86,7 +86,8 @@ class AvroSerializer(rootCatalystType: DataType,
rootAvroType: Schema, nullable:
case DoubleType =>
(getter, ordinal) => getter.getDouble(ordinal)
case d: DecimalType =>
- (getter, ordinal) => getter.getDecimal(ordinal, d.precision,
d.scale).toString
+ (getter, ordinal) =>
+ ByteBuffer.wrap(getter.getDecimal(ordinal, d.precision,
d.scale).toString.getBytes)
--- End diff --
I will update it to `decimal.toJavaBigDecimal.unscaledValue().toByteArray`
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