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https://issues.apache.org/jira/browse/IOTDB-143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tian Jiang closed IOTDB-143.
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> Support merge
> -------------
>
> Key: IOTDB-143
> URL: https://issues.apache.org/jira/browse/IOTDB-143
> Project: Apache IoTDB
> Issue Type: New Feature
> Reporter: Tian Jiang
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.8.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Merge (or compaction) is an important feature of LSM or LSM-like systems and
> IoTDB depends on it to put the data in the sequential files and unsequential
> files together and make them ordered and non-duplicated again.
> Merged data files provide better locality and potentially higher compression
> rate (for some of the missing values are supplemented). While merging
> interacts with many aspects of IoTDB like ingestion and query, finding an
> effective implementation may be rather difficult.
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