Skip to content

perf: replace NOT IN with LEFT ANTI JOIN in activityRelations snapshot merger #4143

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
epipav wants to merge 2 commits into
base: main
Choose a base branch
from
+11 −6
Open

perf: replace NOT IN with LEFT ANTI JOIN in activityRelations snapshot merger #4143

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
c5546be
perf: replace NOT IN with LEFT ANTI JOIN in activityRelations snapsho…
epipav May 21, 2026
b42bb63
Merge branch 'main' into fix/optimize-activityRelations-merger-copy-pipe
epipav May 26, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 11 additions & 6 deletions services/libs/tinybird/pipes/activityRelations_snapshot_merger_copy.pipe
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,12 +14,17 @@ SQL >
(
Select max(snapshotId)::DateTime from activityRelations_enriched_deduplicated_ds
) as maxSnapshotID
SELECT * REPLACE (maxSnapshotID::DateTime + interval 1 day AS snapshotId)
FROM activityRelations_enriched_deduplicated_ds
where
snapshotId = maxSnapshotID
and (segmentId, timestamp, type, platform, channel, sourceId)
NOT IN (SELECT segmentId, timestamp, type, platform, channel, sourceId FROM realtime_snapshot)
SELECT h.* REPLACE (maxSnapshotID::DateTime + interval 1 day AS snapshotId)
FROM activityRelations_enriched_deduplicated_ds h
LEFT ANTI JOIN realtime_snapshot r
ON h.segmentId = r.segmentId
AND h.timestamp = r.timestamp
AND h.type = r.type
AND h.platform = r.platform
AND h.channel = r.channel
AND h.sourceId = r.sourceId
WHERE h.snapshotId = maxSnapshotID
SETTINGS join_algorithm = 'grace_hash'

NODE merged_snapshots
SQL >
Expand Down
Loading