posthog/ee/clickhouse/sql/retention/people_in_period.py

RETENTION_PEOPLE_PER_PERIOD_SQL = """
SELECT toString(person_id), count(person_id) appearance_count, groupArray(intervals_from_base) appearances FROM (
    SELECT DISTINCT
        datediff(%(period)s, {trunc_func}(toDateTime(%(start_date)s)), reference_event.event_date) as base_interval,
        datediff(%(period)s, reference_event.event_date, {trunc_func}(toDateTime(event_date))) as intervals_from_base,
        event.person_id
    FROM (
        SELECT
        timestamp AS event_date,
        pdi.person_id as person_id,
        e.uuid as uuid,
        e.event as event
        FROM events e join ({GET_TEAM_PERSON_DISTINCT_IDS}) pdi on e.distinct_id = pdi.distinct_id
        where toDateTime(e.timestamp) >= toDateTime(%(start_date)s) AND toDateTime(e.timestamp) <= toDateTime(%(end_date)s)
        AND e.team_id = %(team_id)s {returning_query} {filters}
    ) event
    JOIN (
        {first_event_sql}
    ) reference_event
        ON (event.person_id = reference_event.person_id)
    WHERE {trunc_func}(event.event_date) > {trunc_func}(reference_event.event_date)
    UNION ALL
    {first_event_default_sql}
) person_appearances
WHERE base_interval = 0
GROUP BY person_id
ORDER BY appearance_count DESC
LIMIT %(limit)s OFFSET %(offset)s
"""

REFERENCE_EVENT_PEOPLE_PER_PERIOD_SQL = """
SELECT DISTINCT
{trunc_func}(e.timestamp) as event_date,
pdi.person_id as person_id,
e.uuid as uuid,
e.event as event
from events e JOIN ({GET_TEAM_PERSON_DISTINCT_IDS}) pdi on e.distinct_id = pdi.distinct_id
where event_date = {trunc_func}(toDateTime(%(start_date)s))
AND e.team_id = %(team_id)s {target_query} {filters}
"""


DEFAULT_REFERENCE_EVENT_PEOPLE_PER_PERIOD_SQL = """
SELECT DISTINCT
0,
0,
pdi.person_id as person_id
from events e JOIN ({GET_TEAM_PERSON_DISTINCT_IDS}) pdi on e.distinct_id = pdi.distinct_id
where {trunc_func}(e.timestamp) = {trunc_func}(toDateTime(%(start_date)s))
AND e.team_id = %(team_id)s {target_query} {filters}
"""

REFERENCE_EVENT_UNIQUE_PEOPLE_PER_PERIOD_SQL = """
SELECT DISTINCT
min({trunc_func}(e.timestamp)) as event_date,
pdi.person_id as person_id,
argMin(e.uuid, {trunc_func}(e.timestamp)) as min_uuid,
argMin(e.event, {trunc_func}(e.timestamp)) as min_event
from events e JOIN ({GET_TEAM_PERSON_DISTINCT_IDS}) pdi on e.distinct_id = pdi.distinct_id
WHERE e.team_id = %(team_id)s {target_query} {filters}
GROUP BY person_id HAVING
event_date = {trunc_func}(toDateTime(%(start_date)s))
"""

DEFAULT_REFERENCE_EVENT_UNIQUE_PEOPLE_PER_PERIOD_SQL = """
SELECT DISTINCT
0,
0,
pdi.person_id as person_id
from events e JOIN ({GET_TEAM_PERSON_DISTINCT_IDS}) pdi on e.distinct_id = pdi.distinct_id
WHERE e.team_id = %(team_id)s {target_query} {filters}
GROUP BY person_id HAVING
min({trunc_func}(e.timestamp)) = {trunc_func}(toDateTime(%(start_date)s))
"""