Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/21439#discussion_r209461334 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/json/JacksonParser.scala --- @@ -101,6 +102,21 @@ class JacksonParser( } } + private def makeArrayRootConverter(at: ArrayType): JsonParser => Seq[InternalRow] = { + val elemConverter = makeConverter(at.elementType) + (parser: JsonParser) => parseJsonToken[Seq[InternalRow]](parser, at) { + case START_ARRAY => Seq(InternalRow(convertArray(parser, elemConverter))) + case START_OBJECT if at.elementType.isInstanceOf[StructType] => + // This handles the case when an input JSON object is a structure but + // the specified schema is an array of structures. In that case, the input JSON is --- End diff -- Could you add an example here, like what we did in `makeStructRootConverter `?
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