uros-db commented on code in PR #45856:
URL: https://github.com/apache/spark/pull/45856#discussion_r1565669167
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala:
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@@ -543,25 +544,29 @@ case class RLike(left: Expression, right: Expression)
extends StringRegexExpress
case class StringSplit(str: Expression, regex: Expression, limit: Expression)
extends TernaryExpression with ImplicitCastInputTypes with NullIntolerant {
- override def dataType: DataType = ArrayType(StringType, containsNull = false)
- override def inputTypes: Seq[DataType] = Seq(StringType, StringType,
IntegerType)
+ override def dataType: DataType = ArrayType(str.dataType, containsNull =
false)
+ override def inputTypes: Seq[AbstractDataType] =
+ Seq(StringTypeBinaryLcase, StringTypeAnyCollation, IntegerType)
override def first: Expression = str
override def second: Expression = regex
override def third: Expression = limit
+ final lazy val collationId: Int =
str.dataType.asInstanceOf[StringType].collationId
+
def this(exp: Expression, regex: Expression) = this(exp, regex, Literal(-1))
override def nullSafeEval(string: Any, regex: Any, limit: Any): Any = {
- val strings = string.asInstanceOf[UTF8String].split(
- regex.asInstanceOf[UTF8String], limit.asInstanceOf[Int])
+ val strings =
CollationSupport.StringSplit.exec(string.asInstanceOf[UTF8String],
+ regex.asInstanceOf[UTF8String], limit.asInstanceOf[Int], collationId)
new GenericArrayData(strings.asInstanceOf[Array[Any]])
}
override def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
val arrayClass = classOf[GenericArrayData].getName
nullSafeCodeGen(ctx, ev, (str, regex, limit) => {
Review Comment:
for single function call (like here), use `defineCodeGen`
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