Zhihao Shen created IOTDB-6319:
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Summary: Append time column at the end of input columns in
mappable UDTF
Key: IOTDB-6319
URL: https://issues.apache.org/jira/browse/IOTDB-6319
Project: Apache IoTDB
Issue Type: New Feature
Reporter: Zhihao Shen
Assignee: Zhihao Shen
For single row interface, you can call {{row.getTime()}} to get the timestamp
value of current row.
@Overridepublic Object transform(Row row) throws Exception { return
row.getTime();
}
For batch interface, {*}the last column is the time column{*}, use
{{.getLongs()}} to acquire the timestamp values of all rows.
@Overridepublic void transform(Column[] columns, ColumnBuilder builder) throws
Exception { long[] timestamps = columns[columns.size() - 1].getLongs(); int
count = columns[0].getPositionCount(); for (int i = 0; i < count; i++) {
builder.writeLong(timestamps[i]);
}
}
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