Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/17255#discussion_r106043110
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JsonInferSchema.scala
---
@@ -40,18 +40,11 @@ private[sql] object JsonInferSchema {
json: RDD[T],
configOptions: JSONOptions,
createParser: (JsonFactory, T) => JsonParser): StructType = {
- require(configOptions.samplingRatio > 0,
- s"samplingRatio (${configOptions.samplingRatio}) should be greater
than 0")
val shouldHandleCorruptRecord = configOptions.permissive
val columnNameOfCorruptRecord = configOptions.columnNameOfCorruptRecord
- val schemaData = if (configOptions.samplingRatio > 0.99) {
- json
- } else {
- json.sample(withReplacement = false, configOptions.samplingRatio, 1)
- }
--- End diff --
(My worry is though.. it might be a hard work to check each really is
better on `Dataset`..) @cloud-fan, if you are not sure of here, let me revert.
Please let me know.
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