LuciferYang commented on code in PR #40332:
URL: https://github.com/apache/spark/pull/40332#discussion_r1129391698
##########
connector/connect/client/jvm/src/test/scala/org/apache/spark/sql/ClientE2ETestSuite.scala:
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@@ -644,6 +645,34 @@ class ClientE2ETestSuite extends RemoteSparkSession with
SQLHelper {
.collect()
assert(result sameElements expected)
}
+
+ test("json from Dataset[String]") {
+ val session = spark
+ import session.implicits._
+ val expected = Seq(
+ new GenericRowWithSchema(
+ Array(73, "Shandong", "Kong"),
+ new StructType().add("age", LongType).add("city",
StringType).add("name", StringType)))
+ val ds = Seq("""{"name":"Kong","age":73,"city":'Shandong'}""").toDS()
+ val result = spark.read.option("allowSingleQuotes", "true").json(ds)
+ checkSameResult(expected, result)
Review Comment:
https://github.com/apache/spark/blob/69dd20b5e45c7e3533efbfdc1974f59931c1b781/sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala#L404-L417
From the code of the server side, `userSpecifiedSchema` is an
`Option[StructType]` and default is `None`, so we can use it without specifying
the`userSpecifiedSchema`? Or is my test case not the correct scenario?
@zhengruifeng
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