deemoliu commented on code in PR #12392:
URL: https://github.com/apache/pinot/pull/12392#discussion_r1567925821
##########
pinot-common/src/main/java/org/apache/pinot/common/function/scalar/StringFunctions.java:
##########
@@ -581,6 +586,107 @@ public static String[] split(String input, String
delimiter, int limit) {
return StringUtils.splitByWholeSeparator(input, delimiter, limit);
}
+ /**
+ * @param input an input string for prefix strings generations.
+ * @param maxlength the max length of the prefix strings for the string.
+ * @return generate an array of prefix strings of the string that are
shorter than the specified length.
+ */
+ @ScalarFunction
+ public static String[] prefixes(String input, int maxlength) {
+ ObjectList<String> prefixList = new ObjectArrayList<>();
Review Comment:
replaced the objectArrayList with a fixSizeArr. thanks
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