feat(ql3): establish 3.0 incubation baseline

back/migrations/postgresql/pg-0001-schema-capability.ts

@@ -0,0 +1,28 @@
+import { definePostgresSqlMigration } from './sqlMigration';
+
+export const POSTGRESQL_SCHEMA_CAPABILITY_TABLE = 'schema_capabilities';
+
+export const pg0001SchemaCapabilityMigration = definePostgresSqlMigration({
+  id: 'pg-0001-schema-capability',
+  statements: [
+    `
+CREATE TABLE "ql3"."${POSTGRESQL_SCHEMA_CAPABILITY_TABLE}" (
+  contract_name varchar(64) PRIMARY KEY,
+  contract_version integer NOT NULL
+    CONSTRAINT ql3_schema_capabilities_version_check
+    CHECK (contract_version >= 0),
+  migration_id varchar(128) NOT NULL,
+  capabilities jsonb NOT NULL
+    CONSTRAINT ql3_schema_capabilities_payload_check
+    CHECK (jsonb_typeof(capabilities) = 'object'),
+  updated_at_ms bigint NOT NULL
+    CONSTRAINT ql3_schema_capabilities_updated_at_check
+    CHECK (updated_at_ms >= 0),
+  CONSTRAINT ql3_schema_capabilities_migration_fk
+    FOREIGN KEY (migration_id)
+    REFERENCES "ql3"."schema_migrations" (migration_id)
+    DEFERRABLE INITIALLY DEFERRED
+)
+    `.trim(),
+  ],
+});