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Code Issues Releases Activity

perf: Speed up persons batch export (#26183)

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timgl 2024-11-14 08:52:42 +00:00 committed by GitHub
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2 changed files with 125 additions and 43 deletions
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139
posthog/batch_exports/sql.py
View File

@ -2,62 +2,133 @@ from django.conf import settings
CREATE_PERSONS_BATCH_EXPORT_VIEW = f"""
CREATE OR REPLACE VIEW persons_batch_export ON CLUSTER {settings.CLICKHOUSE_CLUSTER} AS (
with new_persons as (
select
id,
max(version) as version,
argMax(_timestamp, person.version) AS _timestamp2
from
person
where
team_id = {{team_id:Int64}}
and id in (
select
id
from
person
where
team_id = {{team_id:Int64}}
and _timestamp >= {{interval_start:DateTime64}}
AND _timestamp < {{interval_end:DateTime64}}
)
group by
id
having
(
_timestamp2 >= {{interval_start:DateTime64}}
AND _timestamp2 < {{interval_end:DateTime64}}
)
),
new_distinct_ids as (
SELECT
pd.team_id AS team_id,
argMax(person_id, person_distinct_id2.version) as person_id
from
person_distinct_id2
where
team_id = {{team_id:Int64}}
and distinct_id in (
select
distinct_id
from
person_distinct_id2
where
team_id = {{team_id:Int64}}
and _timestamp >= {{interval_start:DateTime64}}
AND _timestamp < {{interval_end:DateTime64}}
)
group by
distinct_id
having
(
argMax(_timestamp, person_distinct_id2.version) >= {{interval_start:DateTime64}}
AND argMax(_timestamp, person_distinct_id2.version) < {{interval_end:DateTime64}}
)
),
all_new_persons as (
select
id,
version
from
new_persons
UNION
ALL
select
id,
max(version)
from
person
where
team_id = {{team_id:Int64}}
and id in new_distinct_ids
group by
id
)
select
p.team_id AS team_id,
pd.distinct_id AS distinct_id,
toString(p.id) AS person_id,
p.properties AS properties,
pd.version AS person_distinct_id_version,
p.version AS person_version,
multiIf(
(pd._timestamp >= {{interval_start:DateTime64}} AND pd._timestamp < {{interval_end:DateTime64}})
AND NOT (p._timestamp >= {{interval_start:DateTime64}} AND p._timestamp < {{interval_end:DateTime64}}),
(
pd._timestamp >= {{interval_start:DateTime64}}
AND pd._timestamp < {{interval_end:DateTime64}}
)
AND NOT (
p._timestamp >= {{interval_start:DateTime64}}
AND p._timestamp < {{interval_end:DateTime64}}
),
pd._timestamp,
(p._timestamp >= {{interval_start:DateTime64}} AND p._timestamp < {{interval_end:DateTime64}})
AND NOT (pd._timestamp >= {{interval_start:DateTime64}} AND pd._timestamp < {{interval_end:DateTime64}}),
(
p._timestamp >= {{interval_start:DateTime64}}
AND p._timestamp < {{interval_end:DateTime64}}
)
AND NOT (
pd._timestamp >= {{interval_start:DateTime64}}
AND pd._timestamp < {{interval_end:DateTime64}}
),
p._timestamp,
least(p._timestamp, pd._timestamp)
) AS _inserted_at
FROM (
from
person p
INNER JOIN (
SELECT
team_id,
distinct_id,
max(version) AS version,
argMax(person_id, person_distinct_id2.version) AS person_id,
argMax(person_id, person_distinct_id2.version) AS person_id2,
argMax(_timestamp, person_distinct_id2.version) AS _timestamp
FROM
person_distinct_id2
PREWHERE
team_id = {{team_id:Int64}}
GROUP BY
team_id,
distinct_id
) AS pd
INNER JOIN (
SELECT
team_id,
id,
max(version) AS version,
argMax(properties, person.version) AS properties,
argMax(_timestamp, person.version) AS _timestamp
FROM
person
PREWHERE
team_id = {{team_id:Int64}}
GROUP BY
team_id,
id
) AS p ON p.id = pd.person_id AND p.team_id = pd.team_id
WHERE
pd.team_id = {{team_id:Int64}}
AND p.team_id = {{team_id:Int64}}
AND (
(pd._timestamp >= {{interval_start:DateTime64}} AND pd._timestamp < {{interval_end:DateTime64}})
OR (p._timestamp >= {{interval_start:DateTime64}} AND p._timestamp < {{interval_end:DateTime64}})
team_id = {{team_id:Int64}}
and person_id IN (
select
id
from
all_new_persons
)
GROUP BY
distinct_id
) AS pd ON p.id = pd.person_id2
where
team_id = {{team_id:Int64}}
and (id, version) in all_new_persons
ORDER BY
_inserted_at
)
"""
CREATE_PERSONS_BATCH_EXPORT_VIEW_BACKFILL = f"""

11
posthog/clickhouse/migrations/0085_update_person_batch_exports_query_for_performance.py Normal file
View File

@ -0,0 +1,11 @@
from posthog.batch_exports.sql import (
CREATE_PERSONS_BATCH_EXPORT_VIEW,
)
from posthog.clickhouse.client.migration_tools import run_sql_with_exceptions
operations = map(
run_sql_with_exceptions,
[
CREATE_PERSONS_BATCH_EXPORT_VIEW,
],
)