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feat(coderd/database): add chat_context_resources table (#26430)

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Adds chat_context_resources: a per-chat pinned copy of the agent context
resources a chat is hydrated against. The agent-side table
(workspace_agent_context_resources) is last-writer-wins with no history,
so a chat copies its resources at hydration/refresh to keep a stable view
while the agent drifts.

Schema foundation only (no queries/dbauthz/prepareGeneration/SDK yet).
chat_id FK ON DELETE CASCADE for cleanup parity; no agent FK so the pin
survives agent replacement; PK (chat_id, source); reuses the 000522 enum
types.
This commit is contained in:
Kyle Carberry
2026-06-16 14:28:57 -07:00
committed by GitHub
parent 3e68dd304a
commit 53a6459ecd
10 changed files with 182 additions and 6 deletions
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coderd/database/queries.sql.go
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+1 -2
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@@ -6697,8 +6697,7 @@ type DeleteOldChatsParams struct {
// Deletes chats that have been archived for longer than the given
// threshold. Active (non-archived) chats are never deleted.
// Related chat_messages, chat_diff_statuses, and
// chat_queued_messages are removed via ON DELETE CASCADE.
// All chat-scoped child tables are removed via ON DELETE CASCADE.
// Parent/root references on child chats are SET NULL.
func (q *sqlQuerier) DeleteOldChats(ctx context.Context, arg DeleteOldChatsParams) (int64, error) {
result, err := q.db.ExecContext(ctx, deleteOldChats, arg.BeforeTime, arg.LimitCount)