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Refactor opt-in subscriber selection queries

This commit is contained in:
Kailash Nadh 2020-02-03 13:09:11 +05:30
parent ea302d11b7
commit a2d21a8bf0
1 changed files with 23 additions and 6 deletions
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29
queries.sql
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@ -456,12 +456,18 @@ counts AS (
FROM camps FROM camps
LEFT JOIN campLists ON (campLists.campaign_id = camps.id) LEFT JOIN campLists ON (campLists.campaign_id = camps.id)
LEFT JOIN subscriber_lists ON ( LEFT JOIN subscriber_lists ON (
subscriber_lists.status != 'unsubscribed' AND
subscriber_lists.list_id = campLists.list_id AND subscriber_lists.list_id = campLists.list_id AND
(CASE
-- For optin campaigns, only e-mail 'unconfirmed' subscribers belonging to 'double' optin lists.
WHEN camps.type = 'optin' THEN subscriber_lists.status = 'unconfirmed' AND campLists.optin = 'double'
-- For double opt-in lists, consider only 'confirmed' subscriptions. For single opt-ins, -- For regular campaigns with double optin lists, only e-mail 'confirmed' subscribers.
-- any status except for 'unsubscribed' (already excluded above) works. WHEN campLists.optin = 'double' THEN subscriber_lists.status = 'confirmed'
(CASE WHEN campLists.optin = 'double' THEN subscriber_lists.status = 'confirmed' ELSE true END)
-- For regular campaigns with non-double optin lists, e-mail everyone
-- except unsubscribed subscribers.
ELSE subscriber_lists.status != 'unsubscribed'
END)
) )
GROUP BY camps.id GROUP BY camps.id
), ),
@ -482,7 +488,7 @@ SELECT * FROM camps;
-- (last_subscriber_id). Every fetch updates the checkpoint and the sent count, which means -- (last_subscriber_id). Every fetch updates the checkpoint and the sent count, which means
-- every fetch returns a new batch of subscribers until all rows are exhausted. -- every fetch returns a new batch of subscribers until all rows are exhausted.
WITH camps AS ( WITH camps AS (
SELECT last_subscriber_id, max_subscriber_id SELECT last_subscriber_id, max_subscriber_id, type
FROM campaigns FROM campaigns
WHERE id=$1 AND status='running' WHERE id=$1 AND status='running'
), ),
@ -499,7 +505,18 @@ subs AS (
INNER JOIN subscribers ON ( INNER JOIN subscribers ON (
subscribers.status != 'blacklisted' AND subscribers.status != 'blacklisted' AND
subscribers.id = subscriber_lists.subscriber_id AND subscribers.id = subscriber_lists.subscriber_id AND
(CASE WHEN campLists.optin = 'double' THEN subscriber_lists.status = 'confirmed' ELSE true END)
(CASE
-- For optin campaigns, only e-mail 'unconfirmed' subscribers.
WHEN (SELECT type FROM camps) = 'optin' THEN subscriber_lists.status = 'unconfirmed' AND campLists.optin = 'double'
-- For regular campaigns with double optin lists, only e-mail 'confirmed' subscribers.
WHEN campLists.optin = 'double' THEN subscriber_lists.status = 'confirmed'
-- For regular campaigns with non-double optin lists, e-mail everyone
-- except unsubscribed subscribers.
ELSE subscriber_lists.status != 'unsubscribed'
END)
) )
WHERE subscriber_lists.status != 'unsubscribed' AND WHERE subscriber_lists.status != 'unsubscribed' AND
id > (SELECT last_subscriber_id FROM camps) AND id > (SELECT last_subscriber_id FROM camps) AND