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refactor: drop chat_model_configs provider column (#26877)

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The provider type already lives authoritatively in ai_providers.type,
reachable on every active row through ai_provider_id, which the
chat_model_configs_ai_provider_required_when_active CHECK makes
mandatory. The stored provider string was a denormalized copy the system
kept in sync with a startup backfill and no longer needs.

Every surface now derives provider type from the linked ai_providers
row. Telemetry is the one exception: it keeps emitting provider, now
sourced from ai_providers.type via a JOIN, so the BigQuery column and the
Nexus dashboards that read it are unaffected. The experimental HTTP/SDK
response drops provider and makes ai_provider_id required, since those
endpoints return only active configs; consumers resolve provider type
from ai_provider_id and the AI providers listing.

This ships in a single release with no compatibility window: production
reads the table via SELECT *, so a pre-drop binary fails config reads the
moment the column is gone. Operators must scale to zero before upgrading,
and there is no rollback.

Closes CODAGT-599
This commit is contained in:
Mathias Fredriksson
2026-07-01 15:59:55 +03:00
committed by GitHub
parent cf75dd0f46
commit 047c47495b
92 changed files with 1072 additions and 1197 deletions
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coderd/database/dump.sql
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@@ -1909,7 +1909,6 @@ ALTER SEQUENCE chat_messages_id_seq OWNED BY chat_messages.id;
CREATE TABLE chat_model_configs (
id uuid DEFAULT gen_random_uuid() NOT NULL,
provider text NOT NULL,
model text NOT NULL,
display_name text DEFAULT ''::text NOT NULL,
created_by uuid,
@@ -4625,10 +4624,6 @@ CREATE INDEX idx_chat_model_configs_ai_provider_id ON chat_model_configs USING b
CREATE INDEX idx_chat_model_configs_enabled ON chat_model_configs USING btree (enabled);
CREATE INDEX idx_chat_model_configs_provider ON chat_model_configs USING btree (provider);
CREATE INDEX idx_chat_model_configs_provider_model ON chat_model_configs USING btree (provider, model);
CREATE UNIQUE INDEX idx_chat_model_configs_single_default ON chat_model_configs USING btree ((1)) WHERE ((is_default = true) AND (deleted = false));
CREATE INDEX idx_chat_queued_messages_chat_id ON chat_queued_messages USING btree (chat_id);