Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/9759#discussion_r63319314
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/InferSchema.scala
---
@@ -114,7 +114,16 @@ private[sql] object InferSchema {
// record fields' types have been combined.
NullType
- case VALUE_STRING => StringType
+ case VALUE_STRING =>
+ // If there is only one row, the following non-numeric numbers
will be incorrectly
+ // recognized as StringType.
--- End diff --
E.g., the two tests in `JsonParsingOptionsSuite`.
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