acelyc111 commented on a change in pull request #5436:
URL: https://github.com/apache/incubator-doris/pull/5436#discussion_r589135143



##########
File path: fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java
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@@ -253,6 +253,11 @@ public static DateLiteral createMinValue(Type type) throws 
AnalysisException {
     }
 
     private void init(String s, Type type) throws AnalysisException {
+        // if s contains micro seconds, split it and only maintain second part
+        // because BE only save a datetime with second part
+        if (s.length() > 19) {

Review comment:
       `19` is a magic number, how about define a member variable like 
`MAX_DATE_VALUE_LENGTH = new String("yyyy-MM-dd hh:mm:ss").length();` ?




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