sarutak commented on a change in pull request #32203:
URL: https://github.com/apache/spark/pull/32203#discussion_r614606086
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/json/JacksonGenerator.scala
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@@ -73,7 +74,7 @@ private[sql] class JacksonGenerator(
private val gen = {
val generator = new
JsonFactory().createGenerator(writer).setRootValueSeparator(null)
- if (options.pretty) generator.useDefaultPrettyPrinter() else generator
Review comment:
Of course I read the doc but the actually returned instance is not
equivalent to the instance created by `new DefaultPrettyPrinter("")`.
https://github.com/FasterXML/jackson-core/blob/jackson-core-2.12.2/src/main/java/com/fasterxml/jackson/core/base/GeneratorBase.java#L452
The parameter of the constructor is the separator which separates multiple
root JSON records and the default separator character is `" "`.
https://github.com/FasterXML/jackson-core/blob/jackson-core-2.12.2/src/main/java/com/fasterxml/jackson/core/util/DefaultPrettyPrinter.java#L101
https://github.com/FasterXML/jackson-core/blob/jackson-core-2.12.2/src/main/java/com/fasterxml/jackson/core/util/DefaultPrettyPrinter.java#L28
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