Refactor get-campaigns query
The get-campaigns query was doing two direct joins with the campaign_views and link_clicks tables (that have very large number of relationships) to get the view and click counts. Now the campaigns are selected first in a CTE and their views and counts are aggregated in two more CTEs, and the whole thing is then aggregated to produce the final results.
This commit is contained in:
parent
1fd3a3bada
commit
01b43b992f
40
queries.sql
40
queries.sql
|
@ -255,19 +255,33 @@ INSERT INTO campaign_lists (campaign_id, list_id, list_name)
|
|||
-- name: get-campaigns
|
||||
-- Here, 'lists' is returned as an aggregated JSON array from campaign_lists because
|
||||
-- the list reference may have been deleted.
|
||||
SELECT campaigns.*, COUNT(campaign_views.campaign_id) AS views, COUNT(link_clicks.campaign_id) AS clicks, (
|
||||
SELECT COALESCE(ARRAY_TO_JSON(ARRAY_AGG(l)), '[]') FROM (
|
||||
SELECT COALESCE(campaign_lists.list_id, 0) AS id,
|
||||
campaign_lists.list_name AS name
|
||||
FROM campaign_lists WHERE campaign_lists.campaign_id = campaigns.id
|
||||
) l
|
||||
) AS lists
|
||||
FROM campaigns
|
||||
LEFT JOIN campaign_views ON (campaign_views.campaign_id = campaigns.id)
|
||||
LEFT JOIN link_clicks ON (link_clicks.campaign_id = campaigns.id)
|
||||
WHERE ($1 = 0 OR id = $1) AND status=(CASE WHEN $2 != '' THEN $2::campaign_status ELSE status END)
|
||||
GROUP BY campaigns.id
|
||||
ORDER BY created_at DESC OFFSET $3 LIMIT $4;
|
||||
WITH camps AS (
|
||||
SELECT campaigns.*, (
|
||||
SELECT COALESCE(ARRAY_TO_JSON(ARRAY_AGG(l)), '[]') FROM (
|
||||
SELECT COALESCE(campaign_lists.list_id, 0) AS id,
|
||||
campaign_lists.list_name AS name
|
||||
FROM campaign_lists WHERE campaign_lists.campaign_id = campaigns.id
|
||||
) l
|
||||
) AS lists
|
||||
FROM campaigns
|
||||
WHERE ($1 = 0 OR id = $1) AND status=(CASE WHEN $2 != '' THEN $2::campaign_status ELSE status END)
|
||||
ORDER BY created_at DESC OFFSET $3 LIMIT $4
|
||||
), views AS (
|
||||
SELECT campaign_id, COUNT(campaign_id) as num FROM campaign_views
|
||||
WHERE campaign_id = ANY(SELECT id FROM camps)
|
||||
GROUP BY campaign_id
|
||||
),
|
||||
clicks AS (
|
||||
SELECT campaign_id, COUNT(campaign_id) as num FROM link_clicks
|
||||
WHERE campaign_id = ANY(SELECT id FROM camps)
|
||||
GROUP BY campaign_id
|
||||
)
|
||||
SELECT *,
|
||||
COALESCE(v.num, 0) AS views,
|
||||
COALESCE(c.num, 0) AS clicks
|
||||
FROM camps
|
||||
LEFT JOIN views AS v ON (v.campaign_id = camps.id)
|
||||
LEFT JOIN clicks AS c ON (c.campaign_id = camps.id);
|
||||
|
||||
-- name: get-campaign-for-preview
|
||||
SELECT campaigns.*, COALESCE(templates.body, (SELECT body FROM templates WHERE is_default = true LIMIT 1)) AS template_body,
|
||||
|
|
Loading…
Reference in New Issue