Jialin Qiao created IOTDB-4386:
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Summary: Support a time series pattern matching UDF
Key: IOTDB-4386
URL: https://issues.apache.org/jira/browse/IOTDB-4386
Project: Apache IoTDB
Issue Type: New Feature
Reporter: Jialin Qiao
In some cases, users have a series that represents a typical physical
phenomenon, and they want to see if a series contains a sub-series that has the
same pattern as the given series.
Some pattern-matching methods could be integrated into the built-in UDFs.
The function looks like:
select pattern_matching(s1, "1:2, 2:1, 3:2") from root.sg.d1 , the given series
is in "time:value" format, which represents a "v" pattern.
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