imay commented on a change in pull request #3345: [FIX] fix doris string
functions not support multibyte string
URL: https://github.com/apache/incubator-doris/pull/3345#discussion_r410144966
##########
File path: be/src/exprs/string_functions.cpp
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@@ -223,6 +259,36 @@ IntVal StringFunctions::length(FunctionContext* context,
const StringVal& str) {
return IntVal(str.len);
}
+// Implementation of CHAR_LENGTH
+// int char_length(string input)
+// Returns the length of charactors of input. If input == NULL, returns
+// NULL per MySQL
+IntVal StringFunctions::char_length(FunctionContext* context, const StringVal&
str) {
Review comment:
Is this only valid for UTF8 encode?
If it is, better to rename `utf8_length`.
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