imay commented on a change in pull request #2309: Date format support java date
style "yyyy-MM-dd HH:mm:ss"
URL: https://github.com/apache/incubator-doris/pull/2309#discussion_r351140801
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File path: fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
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@@ -433,6 +433,14 @@ public static DateLiteral dateParser(String date, String
pattern) throws Analysi
//Return the date stored in the dateliteral as pattern format.
//eg : "%Y-%m-%d" or "%Y-%m-%d %H:%i:%s"
public String dateFormat(String pattern) throws AnalysisException {
+ //Replace java date style : {"yyyyMMdd", "yyyy-MM-dd", "yyyy-MM-dd
HH:mm:ss"}
+ pattern = pattern.replaceAll("yyyy", "%Y").
+ replaceAll("MM", "%m").
+ replaceAll("dd", "%d").
+ replaceAll("HH", "%H").
+ replaceAll("mm", "%i").
+ replaceAll("ss", "%s");
Review comment:
Is is a good idea to do like this?
1. If user put an format like "%dd" or "%d-dd-%m", you will change it format.
2. I think this modifing pattern work should be done by the client. For this
case, it should be done by the from_unixtime function not here.
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