yangzhg commented on a change in pull request #3638:
URL: https://github.com/apache/incubator-doris/pull/3638#discussion_r428580401
##########
File path: be/src/exprs/string_functions.cpp
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@@ -49,6 +49,17 @@ size_t get_utf8_byte_length(unsigned char byte) {
}
return char_size;
}
+size_t get_char_len(const StringVal& str, std::vector<size_t>* str_index) {
+ size_t char_len = 0;
+ size_t byte_pos = 0;
+ for (size_t i = 0, char_size = 0; i < str.len; i += char_size) {
Review comment:
char_size = 0 cannot removed
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