[IOTDB-129]Fix statistic bug when restoring incomplete tsfile #230
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In IoTDB system, if a file is found incomplete when restoring, it will be attempted to repair and rebuild metadata information, but the rebuilt metadata information does not contain statistical information, which leads to the error of null pointer when querying such files.
corresponding Jira link:https://issues.apache.org/jira/browse/IOTDB-129