Adds migration to create milestones table and unique index for syncs. (…

…#131)

prisma/migrations/20230828202641_add_index_and_milestone/migration.sql

@@ -0,0 +1,28 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[githubUserId,linearUserId,githubRepoId,linearTeamId]` on the table `syncs` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateTable
+CREATE TABLE "milestones" (
+    "id" TEXT NOT NULL,
+    "milestoneId" INTEGER NOT NULL,
+    "cycleId" TEXT NOT NULL,
+    "githubRepoId" INTEGER NOT NULL,
+    "linearTeamId" TEXT NOT NULL,
+
+    CONSTRAINT "milestones_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "milestones_milestoneId_githubRepoId_cycleId_linearTeamId_key" ON "milestones"("milestoneId", "githubRepoId", "cycleId", "linearTeamId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "syncs_githubUserId_linearUserId_githubRepoId_linearTeamId_key" ON "syncs"("githubUserId", "linearUserId", "githubRepoId", "linearTeamId");
+
+-- AddForeignKey
+ALTER TABLE "milestones" ADD CONSTRAINT "milestones_githubRepoId_fkey" FOREIGN KEY ("githubRepoId") REFERENCES "github_repos"("repoId") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "milestones" ADD CONSTRAINT "milestones_linearTeamId_fkey" FOREIGN KEY ("linearTeamId") REFERENCES "linear_teams"("teamId") ON DELETE RESTRICT ON UPDATE CASCADE;