[GitHub] [incubator-doris] zeropc opened a new issue #6911: [Bug] [Spark Load]Got incorrect bitmap with multiple long values

[GitBox <gi...@apache.org>]

zeropc opened a new issue #6911:
URL: https://github.com/apache/incubator-doris/issues/6911


   ### Search before asking
   
   - [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues.
   
   
   ### Version
   
   current master branch (0.14.0)
   
   ### What's Wrong?
   
   create a table like:
   CREATE TABLE `blabla` ( `logdate` date NULL COMMENT "时间分区", `uid` bitmap BITMAP_UNION NULL COMMENT "用户id" ) ENGINE=OLAP AGGREGATE KEY(`logdate`) COMMENT "";
   step1: Load data with long type uid into the table (ex. 1450361570489487360, 1450328306748575744). There should be **at least two rows** in one logdate.
   step2: Execute query: SELECT BITMAP_TO_STRING(BITMAP_UNION(uid)) from blabla. Got '3006188025784258560,16832520353274220544'.
   
   ### What You Expected?
   
   bitmap with multiple long values should be stored correctly.
   
   Help us pls.
   {@link Roaring64Map#serialize}
   
   High bytes of the long value should be written in little endian orders like below:
               final int key = entry.getKey();
               final byte[] writeBuffer = new byte[4];
               writeBuffer[0] = (byte)(key);
               writeBuffer[1] = (byte)(key >>>  8);
               writeBuffer[2] = (byte)(key >>> 16);
               writeBuffer[3] = (byte)(key >>> 24);
               out.write(writeBuffer, 0, 4);
   
   ### How to Reproduce?
   
   _No response_
   
   ### Anything Else?
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
   


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