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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/foreign_key_constraint.go
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@@ -14,6 +14,7 @@ const (
ForeignKeyAPIKeysUserIDUUID ForeignKeyConstraint = "api_keys_user_id_uuid_fkey" // ALTER TABLE ONLY api_keys ADD CONSTRAINT api_keys_user_id_uuid_fkey FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;
ForeignKeyBoundarySessionsOwnerID ForeignKeyConstraint = "boundary_sessions_owner_id_fkey" // ALTER TABLE ONLY boundary_sessions ADD CONSTRAINT boundary_sessions_owner_id_fkey FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE SET NULL;
ForeignKeyBoundarySessionsWorkspaceAgentID ForeignKeyConstraint = "boundary_sessions_workspace_agent_id_fkey" // ALTER TABLE ONLY boundary_sessions ADD CONSTRAINT boundary_sessions_workspace_agent_id_fkey FOREIGN KEY (workspace_agent_id) REFERENCES workspace_agents(id);
ForeignKeyChatContextResourcesChatID ForeignKeyConstraint = "chat_context_resources_chat_id_fkey" // ALTER TABLE ONLY chat_context_resources ADD CONSTRAINT chat_context_resources_chat_id_fkey FOREIGN KEY (chat_id) REFERENCES chats(id) ON DELETE CASCADE;
ForeignKeyChatDebugRunsChatID ForeignKeyConstraint = "chat_debug_runs_chat_id_fkey" // ALTER TABLE ONLY chat_debug_runs ADD CONSTRAINT chat_debug_runs_chat_id_fkey FOREIGN KEY (chat_id) REFERENCES chats(id) ON DELETE CASCADE;
ForeignKeyChatDebugStepsChatID ForeignKeyConstraint = "chat_debug_steps_chat_id_fkey" // ALTER TABLE ONLY chat_debug_steps ADD CONSTRAINT chat_debug_steps_chat_id_fkey FOREIGN KEY (chat_id) REFERENCES chats(id) ON DELETE CASCADE;
ForeignKeyChatDiffStatusesChatID ForeignKeyConstraint = "chat_diff_statuses_chat_id_fkey" // ALTER TABLE ONLY chat_diff_statuses ADD CONSTRAINT chat_diff_statuses_chat_id_fkey FOREIGN KEY (chat_id) REFERENCES chats(id) ON DELETE CASCADE;