Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/7709#discussion_r35987252
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -283,6 +283,118 @@ case class EndsWith(left: Expression, right:
Expression)
}
}
+object StringTranslate {
+
+ def buildDict(matchingString: UTF8String, replaceString: UTF8String)
+ : JMap[Character, Character] = {
+ val matching = matchingString.toString()
+ val replace = replaceString.toString()
+ val dict = new HashMap[Character, Character]()
+ var i = 0
+ var j = 0
+ while (i < matching.length() && j < replace.length()) {
+ // For multiple mapping, the first one wins.
--- End diff --
Is this the designed behavior or come from Hive?
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