nPath Range-Matching Example | Teradata Vantage - nPath Range-Matching Example: Use OVERLAPPING Mode - Analytics Database

Input

The input table is aggregate_clicks, from LAG and LEAD Expressions Example: No Alias for Input Query.

SQL-MapReduce Call

SELECT * FROM nPath (
  ON aggregate_clicks PARTITION BY sessionid ORDER BY clicktime
  USING
  Mode (OVERLAPPING)
  Pattern ('A.A')
  Symbols (TRUE AS A)
  Result (
    FIRST (sessionid OF A) AS sessionid,
    ACCUMULATE (pagetype OF A) AS path
  )
) AS dt ORDER BY dt.sessionid;

nPath Range-Matching Example Output