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80 lines
3.4 KiB
SQL
80 lines
3.4 KiB
SQL
-- AlterTable
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ALTER TABLE "CourseBooking" ADD COLUMN "discountAmount" INTEGER,
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ADD COLUMN "discountCodeId" TEXT;
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-- CreateTable
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CREATE TABLE "DiscountCode" (
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"id" TEXT NOT NULL,
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"businessId" TEXT NOT NULL,
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"code" TEXT NOT NULL,
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"type" TEXT NOT NULL,
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"value" INTEGER NOT NULL,
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"scope" TEXT NOT NULL,
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"courseIds" TEXT[],
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"maxRedemptions" INTEGER,
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"redeemedCount" INTEGER NOT NULL DEFAULT 0,
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"startsAt" TIMESTAMP(3),
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"expiresAt" TIMESTAMP(3),
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"isActive" BOOLEAN NOT NULL DEFAULT true,
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"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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"updatedAt" TIMESTAMP(3) NOT NULL,
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CONSTRAINT "DiscountCode_pkey" PRIMARY KEY ("id")
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);
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-- CreateTable
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CREATE TABLE "DiscountRedemption" (
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"id" TEXT NOT NULL,
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"discountCodeId" TEXT NOT NULL,
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"userId" TEXT NOT NULL,
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"bookingId" TEXT NOT NULL,
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"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT "DiscountRedemption_pkey" PRIMARY KEY ("id")
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);
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-- CreateIndex
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CREATE INDEX "DiscountCode_businessId_idx" ON "DiscountCode"("businessId");
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-- CreateIndex
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CREATE UNIQUE INDEX "DiscountCode_businessId_code_key" ON "DiscountCode"("businessId", "code");
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-- CreateIndex
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CREATE UNIQUE INDEX "DiscountRedemption_bookingId_key" ON "DiscountRedemption"("bookingId");
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-- CreateIndex
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CREATE INDEX "DiscountRedemption_discountCodeId_idx" ON "DiscountRedemption"("discountCodeId");
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-- CreateIndex
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CREATE INDEX "DiscountRedemption_userId_idx" ON "DiscountRedemption"("userId");
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-- CreateIndex
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CREATE UNIQUE INDEX "DiscountRedemption_discountCodeId_userId_key" ON "DiscountRedemption"("discountCodeId", "userId");
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-- CreateIndex
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CREATE INDEX "CourseBooking_discountCodeId_idx" ON "CourseBooking"("discountCodeId");
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-- AddForeignKey
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-- Bewusst OHNE CONCURRENTLY/NOT VALID: Postgres erlaubt CREATE INDEX
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-- CONCURRENTLY nie innerhalb einer Transaktion, `prisma migrate dev` führt
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-- aber jede Migration transaktional gegen eine Shadow-Database aus - dort
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-- würde CONCURRENTLY hart fehlschlagen und dauerhaft JEDE künftige
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-- `migrate dev`-Ausführung blockieren (nicht nur diese eine Migration), weil
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-- die Shadow-DB alle Migrationen der Reihe nach durchspielt. Der Trade-off
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-- ist hier vertretbar: CourseBooking existiert zu diesem Zeitpunkt zwar
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-- schon, aber discountCodeId ist eine brandneue Spalte ohne bestehende
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-- Nicht-NULL-Werte - Index-Build und FK-Validierung laufen daher in
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-- Sekundenbruchteilen, unabhängig von der Zeilenzahl der Tabelle.
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ALTER TABLE "CourseBooking" ADD CONSTRAINT "CourseBooking_discountCodeId_fkey" FOREIGN KEY ("discountCodeId") REFERENCES "DiscountCode"("id") ON DELETE SET NULL ON UPDATE CASCADE;
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-- AddForeignKey
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ALTER TABLE "DiscountCode" ADD CONSTRAINT "DiscountCode_businessId_fkey" FOREIGN KEY ("businessId") REFERENCES "Business"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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-- AddForeignKey
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ALTER TABLE "DiscountRedemption" ADD CONSTRAINT "DiscountRedemption_discountCodeId_fkey" FOREIGN KEY ("discountCodeId") REFERENCES "DiscountCode"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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-- AddForeignKey
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ALTER TABLE "DiscountRedemption" ADD CONSTRAINT "DiscountRedemption_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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-- AddForeignKey
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ALTER TABLE "DiscountRedemption" ADD CONSTRAINT "DiscountRedemption_bookingId_fkey" FOREIGN KEY ("bookingId") REFERENCES "CourseBooking"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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