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fix(coderd): sort pinned chats first in GetChats pagination (#24222)

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The GetChats SQL query ordered by (updated_at, id) DESC with no
pin_order awareness. A pinned chat with an old updated_at could
land on page 2+ and be invisible in the sidebar's Pinned section.

Add a 4-column ORDER BY: pinned-first flag DESC, negated pin_order
DESC, updated_at DESC, id DESC. The negation trick keeps all sort
columns DESC so the cursor tuple < comparison still works. Update
the after_id cursor clause to match the expanded sort key.

Fix the false handler comment claiming PinChatByID bumps updated_at.
This commit is contained in:
Mathias Fredriksson
2026-04-10 20:13:19 +03:00
committed by GitHub
parent b68c14dd04
commit a62ead8588
7 changed files with 223 additions and 31 deletions
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coderd/database/dump.sql
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@@ -3791,8 +3791,6 @@ CREATE INDEX idx_chats_last_model_config_id ON chats USING btree (last_model_con
CREATE INDEX idx_chats_owner ON chats USING btree (owner_id);
CREATE INDEX idx_chats_owner_updated_id ON chats USING btree (owner_id, updated_at DESC, id DESC);
CREATE INDEX idx_chats_parent_chat_id ON chats USING btree (parent_chat_id);
CREATE INDEX idx_chats_pending ON chats USING btree (status) WHERE (status = 'pending'::chat_status);