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Update retention model sql query (#24249)

shrike
Matt Jankowski 2023-03-25 19:37:57 -04:00 committed by GitHub
parent 9bda933740
commit e63524f457
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1 changed files with 42 additions and 32 deletions
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74
app/lib/admin/metrics/retention.rb
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@ -42,38 +42,7 @@ class Admin::Metrics::Retention
end
def perform_query
sql = <<-SQL.squish
SELECT axis.*, (
WITH new_users AS (
SELECT users.id
FROM users
WHERE date_trunc($3, users.created_at)::date = axis.cohort_period
),
retained_users AS (
SELECT users.id
FROM users
INNER JOIN new_users on new_users.id = users.id
WHERE date_trunc($3, users.current_sign_in_at) >= axis.retention_period
)
SELECT ARRAY[count(*), (count(*))::float / (SELECT GREATEST(count(*), 1) FROM new_users)] AS retention_value_and_rate
FROM retained_users
)
FROM (
WITH cohort_periods AS (
SELECT generate_series(date_trunc($3, $1::timestamp)::date, date_trunc($3, $2::timestamp)::date, ('1 ' || $3)::interval) AS cohort_period
),
retention_periods AS (
SELECT cohort_period AS retention_period FROM cohort_periods
)
SELECT *
FROM cohort_periods, retention_periods
WHERE retention_period >= cohort_period
) as axis
SQL
rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at], [nil, @frequency]])
rows.each_with_object([]) do |row, arr|
report_rows.each_with_object([]) do |row, arr|
current_cohort = arr.last
if current_cohort.nil? || current_cohort.period != row['cohort_period']
@ -90,4 +59,45 @@ class Admin::Metrics::Retention
)
end
end
def report_rows
ActiveRecord::Base.connection.select_all(sanitized_sql_string)
end
def sanitized_sql_string
ActiveRecord::Base.sanitize_sql_array(
[sql_query_string, { start_at: @start_at, end_at: @end_at, frequency: @frequency }]
)
end
def sql_query_string
<<~SQL.squish
SELECT axis.*, (
WITH new_users AS (
SELECT users.id
FROM users
WHERE date_trunc(:frequency, users.created_at)::date = axis.cohort_period
),
retained_users AS (
SELECT users.id
FROM users
INNER JOIN new_users on new_users.id = users.id
WHERE date_trunc(:frequency, users.current_sign_in_at) >= axis.retention_period
)
SELECT ARRAY[count(*), (count(*))::float / (SELECT GREATEST(count(*), 1) FROM new_users)] AS retention_value_and_rate
FROM retained_users
)
FROM (
WITH cohort_periods AS (
SELECT generate_series(date_trunc(:frequency, :start_at::timestamp)::date, date_trunc(:frequency, :end_at::timestamp)::date, ('1 ' || :frequency)::interval) AS cohort_period
),
retention_periods AS (
SELECT cohort_period AS retention_period FROM cohort_periods
)
SELECT *
FROM cohort_periods, retention_periods
WHERE retention_period >= cohort_period
) as axis
SQL
end
end