Jialin Qiao created IOTDB-828:
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Summary: Support Fill in raw data query
Key: IOTDB-828
URL: https://issues.apache.org/jira/browse/IOTDB-828
Project: Apache IoTDB
Issue Type: New Feature
Components: Core/Engine
Reporter: Jialin Qiao
In some cases, the collected data belongs to different manufacturing batch, the
manufacturing batch is stored as a field and only inserted when it changes.
When querying multiple series with the batch, some null will occurs. The
following case contains two batch data.
time, s1, batch
1, 1, 1
2, 2, null
3, 3, null
4, 4, 2
5, 5, null
6, 6, null
In this case, we could support filling the null after aligning by time.
time, s1, batch
1, 1, 1
2, 2, 1
3, 3, 1
4, 4, 2
5, 5, 2
6, 6, 2
The related sql: select s1, batch from xxx fill()
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