Snowflake Query/task gets canceled cause of timelimit - performance

Question

I set up a code, to load Data from Google Analytics from a raw GA table to an adapted table, that offers more insights.
Somehow the Task is not running inside the defined time limit of 3600 seconds.
So the task is getting canceled and no data is loaded.
"Statement reached its statement or warehouse timeout of 3,600 second(s) and was canceled."
Then I load it in a manual way by using a fixed Clause: WHERE gae."DAY"='2020-03-31' instead of
WHERE gae."DAY">=CuRRENT_DATE-1. It takes still much time but works in the end.
How can I make this query faster? Or anyway, solve my problem.
CREATE OR REPLACE TASK dm."Website"."x009_002_all_GA_events"
WAREHOUSE = marketing_wh
SCHEDULE = 'USING CRON 26 5 * * * Europe/Berlin'
AS
merge into DM."Website".ALL_GA_EVENTS_CLEAN target --DM."Website".ALL_GA_EVENTS target
using (
SELECT
GAEVENTACTION AS GAEVENTACTION,
GAEVENTCATEGORY AS GAEVENTCATEGORY,
"DAY" AS Datum,
DEVICE_TYPE AS Device,
EVENT_COUNT AS EventCount,
GAUNIQUEEVENTS AS Uniqueevents,
EVENT_VALUE AS eventvalue,
LABELS AS labelz,
URL AS urlz,
--split_part(LABELS,'/_',2) AS "HITSTAMP",
CASE WHEN split_part(LABELS,'/_',2) IS NOT NULL THEN TRY_CAST(split_part(LABELS,'/_',2) AS timestamp) ELSE NULL END AS "HITSTAMP",
split_part(LABELS,'/_',3) AS EVENT_INFO,
split_part(LABELS,'/_',1) AS "SESSIONID",
CASE
WHEN CONTAINS (URL, '/checkout/')=TRUE THEN split_part(URL,'/',3)
WHEN CONTAINS (URL, '/auto/')=TRUE THEN split_part(split_part(URL,'/',3),'?',1)
WHEN CONTAINS (URL, '/angebote/')=TRUE THEN split_part(URL,'/',3)
ELSE 'no vehicle'
END AS vehicleID,
rank() over (partition BY "SESSIONID" order by "HITSTAMP") as "RANK",
CASE
WHEN (GAEVENTACTION= ('pdp_flash_offer_request' )) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
WHEN (GAEVENTACTION= ('chat_started')) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
WHEN (GAEVENTACTION= ('Direct_checkout_send')) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
WHEN (GAEVENTACTION= ('pdp_offer_request')) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
WHEN (GAEVENTACTION= ('agent-requested')) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
WHEN (GAEVENTACTION= ('SERP_softlead_send')) THEN
CASE WHEN split_part(LABELS,'/_',2)=(SELECT min(split_part(t2.LABELS,'/_',2))
FROM "DL_Datatap"."PUBLIC"."GA_all_events" t2
WHERE split_part(t2.LABELS,'/_',1)=split_part(gae.LABELS,'/_',1) AND gae.GAEVENTACTION=t2.GAEVENTACTION)
THEN TRUE
ELSE FALSE
END
ELSE False
END AS "GOAL_EVENT"
FROM "DL_Datatap"."PUBLIC"."GA_all_events" gae
---WHERE gae."DAY"='2020-03-31'
WHERE gae."DAY">=CuRRENT_DATE-1
) SOURCE
ON target.SESSIONID=SOURCE."SESSIONID" AND target.HITSTAMP=SOURCE."HITSTAMP" AND target.EVENT_ACTION=SOURCE.GAEVENTACTION AND target."Date"=SOURCE.Datum
when NOT matched then INSERT (EVENT_ACTION, EVENT_CATEGORY, "Date", DEVICE, TOTAL_EVENTS, UNIQUE_EVENTS, EVENT_VALUE, EVENT_LABEL, URL, HITSTAMP, EVENT_INFO, SESSIONID, VEHICLEID, EVENT_SEQUENCE, GOAL_EVENT)
VALUES (SOURCE.GAEVENTACTION, SOURCE.GAEVENTCATEGORY, SOURCE.Datum, SOURCE.Device, SOURCE.eventcount, SOURCE.Uniqueevents, SOURCE. eventvalue, SOURCE.labelz, SOURCE.urlz, SOURCE."HITSTAMP", SOURCE.EVENT_INFO, SOURCE."SESSIONID", SOURCE.vehicleid, SOURCE."RANK", SOURCE."GOAL_EVENT"
)

Answer 1

You can increase the task timeout limit as a workaround:
CREATE OR REPLACE TASK dm."Website"."x009_002_all_GA_events"
WAREHOUSE = marketing_wh
SCHEDULE = 'USING CRON 26 5 * * * Europe/Berlin'
USER_TASK_TIMEOUT_MS = 86400000
AS
...
https://docs.snowflake.com/en/sql-reference/sql/create-task.html#optional-parameters
If you need help to tune your SQL, please submit a case to support. As they can see metadata of your tables, and execution plans of your previous runs, they can guide you to tune the query, cluster your target table etc..