nikhilsu commented on code in PR #14537:
URL: https://github.com/apache/pinot/pull/14537#discussion_r1857470658
##########
pinot-common/src/main/java/org/apache/pinot/common/function/scalar/ArrayFunctions.java:
##########
@@ -347,4 +347,9 @@ public static double[] generateDoubleArray(double start,
double end, double inc)
}
return arr;
}
+
+ @ScalarFunction
+ public static String arrayJoinString(String[] values, String delimiter) {
Review Comment:
Postgres calls it
[array_to_string](https://www.postgresql.org/docs/15/functions-array.html#FUNCTION-ARRAY-TO-STRING).
It also offers NULL replacements.
I named it `arrayJoinString` to be consistent with the other array functions
above. I can call it `array_to_string`, if you'd like.
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