morrySnow commented on code in PR #49061: URL: https://github.com/apache/doris/pull/49061#discussion_r1994685613
########## fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/StringArithmetic.java: ########## @@ -406,12 +406,8 @@ public static Expression characterLength(StringLikeLiteral first) { return new IntegerLiteral(first.getValue().length()); } - private static boolean isSeparator(char c) { - if (".$|()[{^?*+\\".indexOf(c) == -1) { - return false; - } else { - return true; - } + private static boolean isAlphabetic(char c) { + return String.valueOf(c).matches("[A-Za-z]"); Review Comment: should consider such as `ÀÇ`, u should use `\P{L}`. refer: https://www.regular-expressions.info/unicode.html#prop notice, BE has bug when process UTF-8 in some functions, so should not follow BE's behavior -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org