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feat: Add projection on inserted_at #17466

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merged 4 commits into from
Oct 6, 2023
Merged

feat: Add projection on inserted_at #17466

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ebaf242
feat: Add projection on inserted_at
tomasfarias Jul 25, 2023
fb00333
chore: Bump migration
tomasfarias Sep 15, 2023
4a62a8c
refactor: Only materialize latest partition
tomasfarias Sep 26, 2023
4102d4b
chore: Materialize projection on 202310
tomasfarias Oct 6, 2023
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22 changes: 22 additions & 0 deletions posthog/clickhouse/migrations/0049_add_inserted_at_projection.py
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Original file line number Diff line number Diff line change
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from posthog.clickhouse.client.migration_tools import run_sql_with_exceptions
from posthog.settings import CLICKHOUSE_CLUSTER

ADD_PROJECTION_SQL = """
ALTER TABLE sharded_events
ON CLUSTER '{cluster}'
ADD PROJECTION events_inserted_at_projection (
SELECT * ORDER BY (team_id, inserted_at, event, cityHash64(distinct_id), cityHash64(uuid))
);
"""

MATERIALIZE_PROJECTION_SQL = """
ALTER TABLE sharded_events
ON CLUSTER '{cluster}'
MATERIALIZE PROJECTION events_inserted_at_projection
IN PARTITION '202309';
"""

operations = [
run_sql_with_exceptions(ADD_PROJECTION_SQL.format(cluster=CLICKHOUSE_CLUSTER)),
run_sql_with_exceptions(MATERIALIZE_PROJECTION_SQL.format(cluster=CLICKHOUSE_CLUSTER)),
]