morningman commented on a change in pull request #3345:
URL: https://github.com/apache/incubator-doris/pull/3345#discussion_r416327527
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File path: gensrc/script/doris_builtins_functions.py
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@@ -533,6 +533,8 @@
'15FunctionContextERKNS1_9StringValERKNS1_6IntValES6_'],
[['length'], 'INT', ['VARCHAR'],
'_ZN5doris15StringFunctions6lengthEPN9doris_udf15FunctionContextERKNS1_9StringValE'],
+ [['char_length_utf8'], 'INT', ['VARCHAR'],
Review comment:
I found that in mysql , it calls `char_length()`,
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_char-length
So I think `char_length` is enough, and this function is unrelated with the
encoding。
`char_length_utf8('中国')` and `char_length_gbk('中国')` should both return `2`.
So the suffix `_utf8` is unnecessary.
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