add prisma migration

db/postgresql/migrations/02_add_event_data/migration.sql

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+-- AlterTable
+ALTER TABLE "event" ADD COLUMN "event_name" VARCHAR(50);
+
+-- CreateTable
+CREATE TABLE "event_data" (
+    "event_data_id" SERIAL NOT NULL,
+    "event_id" INTEGER NOT NULL,
+    "event_data" JSONB NOT NULL,
+
+    CONSTRAINT "event_data_pkey" PRIMARY KEY ("event_data_id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "event_data_event_id_key" ON "event_data"("event_id");
+
+-- AddForeignKey
+ALTER TABLE "event_data" ADD CONSTRAINT "event_data_event_id_fkey" FOREIGN KEY ("event_id") REFERENCES "event"("event_id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- RenameIndex
+ALTER INDEX "account.username_unique" RENAME TO "account_username_key";
+
+-- RenameIndex
+ALTER INDEX "session.session_uuid_unique" RENAME TO "session_session_uuid_key";
+
+-- RenameIndex
+ALTER INDEX "website.share_id_unique" RENAME TO "website_share_id_key";
+
+-- RenameIndex
+ALTER INDEX "website.website_uuid_unique" RENAME TO "website_website_uuid_key";
+
+/*
+  Warnings:
+
+  - You are about to drop the column `event_type` on the `event` table. All the data in the column will be lost.
+  - You are about to drop the column `event_value` on the `event` table. All the data in the column will be lost.
+
+*/
+-- Populate event_name
+update event
+set "event_name" = event.event_value || '-' || event.event_type;
+
+--Set event_name not null
+ALTER TABLE "event" ALTER COLUMN "event_name" SET NOT NULL;
+
+-- Drop old columns
+ALTER TABLE "event" DROP COLUMN "event_type",
+DROP COLUMN "event_value";