mirrors/lemmy
1
0
Fork 0
mirror of https://github.com/LemmyNet/lemmy.git synced 2024-06-01 19:42:08 +00:00
Code Issues Projects Releases Wiki Activity

move LEFT JOIN post to inner query

Browse source
This commit is contained in:
Dull Bananas 2024-05-07 22:19:47 +00:00
parent 989350e277
commit fddb5846ef
1 changed files with 9 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
crates/db_schema/replaceable_schema/triggers.sql
View file

@ -158,18 +158,19 @@ WITH post_diff AS (
ORDER BY published DESC LIMIT 1))
FROM (
SELECT
(comment).post_id,
post.id AS post_id,
coalesce(sum(count_diff), 0) AS comments,
-- Old rows are excluded using `count_diff = 1`
max((comment).published) FILTER (WHERE count_diff = 1) AS newest_comment_time,
array_agg(((comment).creator_id, (comment).published)) FILTER (WHERE count_diff = 1) AS comments_array
array_agg(((comment).creator_id, (comment).published)) FILTER (WHERE count_diff = 1) AS comments_array,
r.is_counted (post.*) AS include_in_community_aggregates
FROM
select_old_and_new_rows AS old_and_new_rows
WHERE
r.is_counted (comment)
GROUP BY
(comment).post_id) AS diff
LEFT JOIN post ON post.id = diff.post_id
LEFT JOIN post ON post.id = (comment).post_id
WHERE
r.is_counted (comment)
GROUP BY
post.id) AS diff
WHERE
a.post_id = diff.post_id
AND (diff.comments,
@ -189,7 +190,7 @@ WITH post_diff AS (
RETURNING
a.community_id,
diff.comments,
r.is_counted (post.*) AS include_in_community_aggregates)
diff.include_in_community_aggregates)
UPDATE
community_aggregates AS a
SET