Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/14004#discussion_r70028864 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala --- @@ -198,6 +203,67 @@ case class StringSplit(str: Expression, pattern: Expression) override def prettyName: String = "split" } +/** + * Splits a string into arrays of sentences, where each sentence is an array of words. + * The 'lang' and 'country' arguments are optional, and if omitted, the default locale is used. + */ +@ExpressionDescription( + usage = "_FUNC_(str, lang, country) - Splits str into an array of array of words.", + extended = "> SELECT _FUNC_('Hi there! Good morning.');\n [['Hi','there'], ['Good','morning']]") +case class Sentences( + str: Expression, + language: Expression = Literal(""), + country: Expression = Literal("")) + extends Expression with ImplicitCastInputTypes with CodegenFallback { --- End diff -- ImplicitCastInputTypes -> ExpectsInputType
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