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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/unique_constraint.go
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@@ -21,6 +21,7 @@ const (
UniqueBoundaryLogsPkey UniqueConstraint = "boundary_logs_pkey" // ALTER TABLE ONLY boundary_logs ADD CONSTRAINT boundary_logs_pkey PRIMARY KEY (id);
UniqueBoundarySessionsPkey UniqueConstraint = "boundary_sessions_pkey" // ALTER TABLE ONLY boundary_sessions ADD CONSTRAINT boundary_sessions_pkey PRIMARY KEY (id);
UniqueBoundaryUsageStatsPkey UniqueConstraint = "boundary_usage_stats_pkey" // ALTER TABLE ONLY boundary_usage_stats ADD CONSTRAINT boundary_usage_stats_pkey PRIMARY KEY (replica_id);
UniqueChatContextResourcesPkey UniqueConstraint = "chat_context_resources_pkey" // ALTER TABLE ONLY chat_context_resources ADD CONSTRAINT chat_context_resources_pkey PRIMARY KEY (chat_id, source);
UniqueChatDebugRunsPkey UniqueConstraint = "chat_debug_runs_pkey" // ALTER TABLE ONLY chat_debug_runs ADD CONSTRAINT chat_debug_runs_pkey PRIMARY KEY (id);
UniqueChatDebugStepsPkey UniqueConstraint = "chat_debug_steps_pkey" // ALTER TABLE ONLY chat_debug_steps ADD CONSTRAINT chat_debug_steps_pkey PRIMARY KEY (id);
UniqueChatDiffStatusesPkey UniqueConstraint = "chat_diff_statuses_pkey" // ALTER TABLE ONLY chat_diff_statuses ADD CONSTRAINT chat_diff_statuses_pkey PRIMARY KEY (chat_id);