uros-db commented on code in PR #45643:
URL: https://github.com/apache/spark/pull/45643#discussion_r1565484403
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala:
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@@ -1346,20 +1350,24 @@ case class StringTrimRight(srcStr: Expression, trimStr:
Option[Expression] = Non
case class StringInstr(str: Expression, substr: Expression)
extends BinaryExpression with ImplicitCastInputTypes with NullIntolerant {
+ final lazy val collationId: Int =
left.dataType.asInstanceOf[StringType].collationId
+
override def left: Expression = str
override def right: Expression = substr
override def dataType: DataType = IntegerType
- override def inputTypes: Seq[DataType] = Seq(StringType, StringType)
+ override def inputTypes: Seq[AbstractDataType] =
+ Seq(StringTypeAnyCollation, StringTypeAnyCollation)
override def nullSafeEval(string: Any, sub: Any): Any = {
- string.asInstanceOf[UTF8String].indexOf(sub.asInstanceOf[UTF8String], 0) +
1
+ CollationSupport.IndexOf.
+ exec(string.asInstanceOf[UTF8String], sub.asInstanceOf[UTF8String], 0,
collationId) + 1
}
override def prettyName: String = "instr"
override def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
- defineCodeGen(ctx, ev, (l, r) =>
- s"($l).indexOf($r, 0) + 1")
+ defineCodeGen(ctx, ev, (l, r) =>
+ CollationSupport.IndexOf.genCode(l, r, 0, collationId) + " + 1")
Review Comment:
perhaps we should use "string" & "sub" (instead of "l" & "r") to preserve
the original naming
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