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[SPARK-25514][SQL] Generating pretty JSON by to_json #22534

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[SPARK-25514][SQL] Generating pretty JSON by to_json #22534

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826e8c3
Added a round trip tests - from_json and to_json
MaxGekk Sep 23, 2018
051c8fd
Support the pretty option
MaxGekk Sep 23, 2018
f2d7b7e
Description of the pretty option
MaxGekk Sep 24, 2018
80bb0a1
Update JSONOptions.scala
MaxGekk Sep 25, 2018
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Added a round trip tests - from_json and to_json
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@MaxGekk
MaxGekk committed Sep 23, 2018
commit 826e8c3dd5b7e54ebdceee74f30798e1b01bcaed
9 changes: 9 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/JsonFunctionsSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -518,4 +518,13 @@ class JsonFunctionsSuite extends QueryTest with SharedSQLContext {
jsonDF.select(to_json(from_json($"a", schema))),
Seq(Row(json)))
}

test("pretty print - roundtrip from_json -> to_json") {
val json = """[{"book":{"publisher":[{"country":"NL","year":[1981,1986,1999]}]}}]"""
val jsonDF = Seq(json).toDF("root")

checkAnswer(
jsonDF.select(to_json(from_json($"root", schema_of_json(lit(json))))),
Seq(Row(json)))
}
}