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
sessionid | path |
---|---|
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [home, home] |
1 | [checkout, home] |
1 | [page1, checkout] |
1 | [home1, page1] |
1 | [home, home1] |
1 | [home, home] |
1 | [home, home] |
1 | [page1, home] |
1 | [home1, page1] |
1 | [home, home1] |
1 | [page1, home] |
1 | [home1, page1] |
1 | [home, home1] |
2 | [home, home] |
2 | [checkout, home] |
2 | [checkout, checkout] |
... | ... |