change relation

prisma/migrations/20221012204442_change_relation/migration.sql

@@ -0,0 +1,31 @@
+/*
+  Warnings:
+
+  - The primary key for the `Booking` table will be changed. If it partially fails, the table could be left without primary key constraint.
+  - You are about to drop the column `billId` on the `Booking` table. All the data in the column will be lost.
+  - The `id` column on the `Booking` table would be dropped and recreated. This will lead to data loss if there is data in the column.
+  - A unique constraint covering the columns `[bookingId]` on the table `Bill` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `bookingId` to the `Bill` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- DropForeignKey
+ALTER TABLE "Booking" DROP CONSTRAINT "Booking_billId_fkey";
+
+-- DropIndex
+DROP INDEX "Booking_billId_key";
+
+-- AlterTable
+ALTER TABLE "Bill" ADD COLUMN     "bookingId" INTEGER NOT NULL;
+
+-- AlterTable
+ALTER TABLE "Booking" DROP CONSTRAINT "Booking_pkey",
+DROP COLUMN "billId",
+DROP COLUMN "id",
+ADD COLUMN     "id" SERIAL NOT NULL,
+ADD CONSTRAINT "Booking_pkey" PRIMARY KEY ("id");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Bill_bookingId_key" ON "Bill"("bookingId");
+
+-- AddForeignKey
+ALTER TABLE "Bill" ADD CONSTRAINT "Bill_bookingId_fkey" FOREIGN KEY ("bookingId") REFERENCES "Booking"("id") ON DELETE RESTRICT ON UPDATE CASCADE;