Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/8035#discussion_r36710930
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/json/JSONRelation.scala ---
@@ -105,6 +107,15 @@ private[sql] class JSONRelation(
jsonSchema
}
+ override private[sql] def buildScan(
+ requiredColumns: Array[String],
+ filters: Array[Filter],
+ inputPaths: Array[String],
+ broadcastedConf: Broadcast[SerializableConfiguration]): RDD[Row] = {
+ refresh()
--- End diff --
For json, we do not have other metadata to cache other than file status,
right?
`once the table cached` => you mean after we call `cache table`? I do see
we drop the cached logical plan from our cache manager. Can you try it and see
if we drop the cached table data?
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