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thulab / tsfile

THIS REPO HAS MOVED TO https://github.com/apache/incubator-iotdb. TsFile is a columnar file format designed for time-series data, which supports efficient compression and query. It is easy to integrate TsFile with your IOT big data processing frameworks.
https://github.com/apache/incubator-iotdb
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wrong value of `first` in PageHeader. #158

Closed jixuan1989 closed 5 years ago

jixuan1989 commented 5 years ago

以test中的TsFileWriteTest为例， sensor_3首先写了50，然后将其改成了51. 可以看到 fist仍然等于50. 另， first和last在page header中的意义是？ image

jixuan1989 commented 5 years ago

经过测试，在tsfile中，如果一个device，sensor拥有相同时间戳的数据时，会都存储下来，所以值为50的确实仍然存在，因此似乎不算问题。。