yangzhg commented on a change in pull request #3898:
URL: https://github.com/apache/incubator-doris/pull/3898#discussion_r442160165



##########
File path: be/src/olap/utils.cpp
##########
@@ -1264,6 +1265,15 @@ bool valid_datetime(const string &value_str) {
     }
 }
 
+bool valid_bool(const std::string& value_str) {
+    if (value_str == "0" || value_str == "1") {
+        return true;
+    }
+    StringParser::ParseResult result;
+    StringParser::string_to_bool(value_str.c_str(), value_str.length(), 
&result);

Review comment:
       "Truetest" won't be converted to `true`  because of 
`is_all_whitespace()`, it will return  `PARSE_FAILURE`. In additional, this is 
just test the string is `true` or `false` ignore case;




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