Github user BryanCutler commented on a diff in the pull request: https://github.com/apache/spark/pull/22226#discussion_r214157102 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala --- @@ -3493,11 +3493,11 @@ object functions { def schema_of_json(e: Column): Column = withExpr(new SchemaOfJson(e.expr)) /** - * (Scala-specific) Converts a column containing a `StructType`, `ArrayType` of `StructType`s, - * a `MapType` or `ArrayType` of `MapType`s into a JSON string with the specified schema. + * (Scala-specific) Converts a column containing a `StructType`, `ArrayType` or + * a `MapType` into a JSON string with the specified schema. * Throws an exception, in the case of an unsupported type. * - * @param e a column containing a struct or array of the structs. + * @param e a column containing a struct, a array or a map. --- End diff -- typo: `a array` -> `an array`
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