CREATE TABLE IF NOT EXISTS "groups" ( "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL, "user_id" uuid, "email" text NOT NULL, "name" text NOT NULL, CONSTRAINT "groups_email_unique" UNIQUE("email") ); --> statement-breakpoint CREATE TABLE IF NOT EXISTS "letters" ( "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL, "sender" text NOT NULL, "content" text NOT NULL, "group_id" uuid NOT NULL, "date_created" date DEFAULT now() NOT NULL ); --> statement-breakpoint CREATE TABLE IF NOT EXISTS "sources" ( "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL, "group_id" uuid NOT NULL, "name" text NOT NULL, "is_confirmed" boolean DEFAULT false NOT NULL ); --> statement-breakpoint ALTER TABLE "pods" DROP CONSTRAINT "pods_user_id_users_id_fk"; --> statement-breakpoint ALTER TABLE "pods" ADD COLUMN "group_id" uuid;--> statement-breakpoint DO $$ BEGIN ALTER TABLE "pods" ADD CONSTRAINT "pods_group_id_groups_id_fk" FOREIGN KEY ("group_id") REFERENCES "groups"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint DO $$ BEGIN ALTER TABLE "pods" ADD CONSTRAINT "pods_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint DO $$ BEGIN ALTER TABLE "groups" ADD CONSTRAINT "groups_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint DO $$ BEGIN ALTER TABLE "letters" ADD CONSTRAINT "letters_group_id_groups_id_fk" FOREIGN KEY ("group_id") REFERENCES "groups"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint DO $$ BEGIN ALTER TABLE "sources" ADD CONSTRAINT "sources_group_id_groups_id_fk" FOREIGN KEY ("group_id") REFERENCES "groups"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$;