ALTER TABLE "instructor_curriculum_settings"
  ADD COLUMN "group_id" UUID;

ALTER TABLE "instructor_curriculum_settings"
  ADD CONSTRAINT "instructor_curriculum_settings_group_id_fkey"
  FOREIGN KEY ("group_id")
  REFERENCES "student_groups"("id")
  ON DELETE CASCADE
  ON UPDATE CASCADE;

DROP INDEX IF EXISTS "instructor_curriculum_settings_organization_name_key";

CREATE UNIQUE INDEX "instructor_curriculum_settings_organization_default_key"
  ON "instructor_curriculum_settings"("organization_name")
  WHERE "group_id" IS NULL;

CREATE UNIQUE INDEX "instructor_curriculum_settings_organization_group_key"
  ON "instructor_curriculum_settings"("organization_name", "group_id")
  WHERE "group_id" IS NOT NULL;

CREATE INDEX "instructor_curriculum_settings_organization_name_idx"
  ON "instructor_curriculum_settings"("organization_name");

CREATE INDEX "instructor_curriculum_settings_group_id_idx"
  ON "instructor_curriculum_settings"("group_id");