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refactor session replays to be per visit. sessions persist too long resulting in low-quality recordings

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Francis Cao
2026-03-03 22:59:25 -08:00
parent b2d45613b5
commit 0e1d6cef6b
26 changed files with 248 additions and 83 deletions
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db/clickhouse/migrations/10_add_session_recording.sql
+2 -1
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@@ -4,6 +4,7 @@ CREATE TABLE umami.session_replay
replay_id UUID,
website_id UUID,
session_id UUID,
visit_id UUID,
chunk_index UInt32,
events String CODEC(ZSTD(3)),
event_count UInt32,
@@ -13,5 +14,5 @@ CREATE TABLE umami.session_replay
)
ENGINE = MergeTree()
PARTITION BY toYYYYMM(created_at)
ORDER BY (replay_id, website_id, session_id, chunk_index)
ORDER BY (replay_id, website_id, session_id, visit_id, chunk_index)
SETTINGS index_granularity = 8192;
db/clickhouse/schema.sql
+2 -1
View File
@@ -361,6 +361,7 @@ CREATE TABLE umami.session_replay
replay_id UUID,
website_id UUID,
session_id UUID,
visit_id UUID,
chunk_index UInt32,
events String CODEC(ZSTD(3)),
event_count UInt32,
@@ -370,5 +371,5 @@ CREATE TABLE umami.session_replay
)
ENGINE = MergeTree()
PARTITION BY toYYYYMM(created_at)
ORDER BY (replay_id, website_id, session_id, chunk_index)
ORDER BY (replay_id, website_id, session_id, visit_id, chunk_index)
SETTINGS index_granularity = 8192;