uros-db commented on code in PR #46165:
URL: https://github.com/apache/spark/pull/46165#discussion_r1575711699
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/maskExpressions.scala:
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@@ -84,7 +86,7 @@ object MaskExpressionBuilder extends ExpressionBuilder {
val digitCharArg = InputParameter("digitChar",
Some(Literal(Mask.MASKED_DIGIT)))
val otherCharArg = InputParameter(
"otherChar",
- Some(Literal(Mask.MASKED_IGNORE, StringType)))
+ Some(Literal(Mask.MASKED_IGNORE, SQLConf.get.defaultStringType)))
Review Comment:
`MASKED_IGNORE` is null, so we have to specify a type for this literal in
func signature
so instead of `StringType(0)` it should only be correct to get the default
string type
we enforce implicit cast for this expression, so in a situation where the
first parameter takes the default string type (for example when not using
explicit collation) there would be a conflict with this `StringType(0)` if it
were to stay here
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