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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2021/01/21 13:37:57 UTC

[GitHub] [iotdb] zhanglingzhe0820 opened a new issue #2549: 乱序合并时当一个乱序文件startTime=一个顺序文件endTime时，这个乱序文件被合并到后一个顺序文件(When execute merge, with an unseq-file's startTime=a seq-file's endTime, the unseq file is merged into the next seq file)

zhanglingzhe0820 opened a new issue #2549:
URL: https://github.com/apache/iotdb/issues/2549


   当一个乱序文件的数据与一个顺序文件的最后一个时间戳重叠时，不会合并当前乱序的文件的时间戳，而会将其合并到后一个文件去，导致这个点的数据重叠。
   例如，执行如下命令，
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 1, 1));
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 2, 2));
         statement.execute("FLUSH");
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 5, 5));
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 6, 6));
         statement.execute("FLUSH");
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 2, 3));
         statement.execute(String
             .format("INSERT INTO root.mergeTest(timestamp,s1) VALUES (%d,%d)", 3, 3));
         statement.execute("FLUSH");
   最后结果为两个顺序文件
   第一个顺序文件时间范围:[1,2]
   第二个顺序文件时间范围:[2,6]


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[GitHub] [iotdb] JackieTien97 closed issue #2549: 乱序合并时当一个乱序文件startTime=一个顺序文件endTime时，这个乱序文件被合并到后一个顺序文件(When execute merge, with an unseq-file's startTime=a seq-file's endTime, the unseq file is merged into the next seq file)

Posted by GitBox <gi...@apache.org>.
JackieTien97 closed issue #2549:
URL: https://github.com/apache/iotdb/issues/2549


   


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[GitHub] [iotdb] JackieTien97 closed issue #2549: 乱序合并时当一个乱序文件startTime=一个顺序文件endTime时，这个乱序文件被合并到后一个顺序文件(When execute merge, with an unseq-file's startTime=a seq-file's endTime, the unseq file is merged into the next seq file)

Posted by GitBox <gi...@apache.org>.
JackieTien97 closed issue #2549:
URL: https://github.com/apache/iotdb/issues/2549


   


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