cloud-fan commented on code in PR #41864:
URL: https://github.com/apache/spark/pull/41864#discussion_r1262236718
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/maskExpressions.scala:
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@@ -321,3 +322,21 @@ object Mask {
}
}
}
+
+object MaskExpressionBuilder extends ExpressionBuilder {
+ override def functionSignatures: Option[Seq[FunctionSignature]] = {
+ val strArg = NamedArgument("str")
+ val upperCharArg = NamedArgument("upperChar",
Some(Literal(Mask.MASKED_UPPERCASE)))
+ val lowerCharArg = NamedArgument("lowerChar",
Some(Literal(Mask.MASKED_LOWERCASE)))
+ val digitCharArg = NamedArgument("digitChar",
Some(Literal(Mask.MASKED_DIGIT)))
+ val otherCharArg = NamedArgument("otherChar",
Some(Literal(Mask.MASKED_IGNORE)))
+ val functionSignature: FunctionSignature = FunctionSignature(Seq(
+ strArg, upperCharArg, lowerCharArg, digitCharArg, otherCharArg))
+ Some(Seq(functionSignature))
+ }
+
+ override def build(funcName: String, expressions: Seq[Expression]):
Expression = {
Review Comment:
shall we check the number of arguments as we did in
https://github.com/apache/spark/pull/41864/files#diff-66a6cfe45ec7e9e6be23be40f8ccedf9ec84887abfa6e7d3b9c34ea85bf85e91R222
?
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