42 lines
1.5 KiB
Cheetah
42 lines
1.5 KiB
Cheetah
-- Retention Cohort -- of users whose first `initial_event` lands on day D,
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-- what share triggered `return_event` on day D+k for k in 1..Periods.
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--
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-- Required parameters (clickhouse.Named):
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-- workspace_id : String
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-- from : DateTime64(3,'UTC')
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-- to : DateTime64(3,'UTC')
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-- initial_event : String
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-- return_event : String
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--
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-- Template inputs:
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-- .Outer : []{ RIndex int; OffsetDay int; Last bool }
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-- One entry per follow-up day. RIndex is the position in the retention()
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-- output array; OffsetDay is the day delta from the cohort day.
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SELECT
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cohort_day,
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countIf(arrayElement(r, 1)) AS cohort_size,
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{{- range $p := .Outer }}
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countIf(arrayElement(r, {{ $p.RIndex }})) AS retained_d{{ $p.OffsetDay }}{{ if not $p.Last }},{{ end }}
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{{- end }}
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FROM (
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SELECT
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user_id,
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toDate(min(if(event = {initial_event:String}, timestamp, NULL))) AS cohort_day,
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retention(
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event = {initial_event:String} AND toDate(timestamp) = cohort_day,
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{{- range $p := .Outer }}
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event = {return_event:String} AND toDate(timestamp) = addDays(cohort_day, {{ $p.OffsetDay }}){{ if not $p.Last }},{{ end }}
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{{- end }}
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) AS r
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FROM events_track
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WHERE workspace_id = {workspace_id:String}
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AND received_at >= {from:DateTime64(3,'UTC')}
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AND received_at < {to:DateTime64(3,'UTC')}
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AND user_id != ''
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AND event IN ({initial_event:String}, {return_event:String})
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GROUP BY user_id
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HAVING cohort_day IS NOT NULL
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)
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GROUP BY cohort_day
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ORDER BY cohort_day
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