-- CreateTable
CREATE TABLE "prompt_history" (
    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
    "workspaceId" INTEGER NOT NULL,
    "prompt" TEXT NOT NULL,
    "modifiedBy" INTEGER,
    "modifiedAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT "prompt_history_workspaceId_fkey" FOREIGN KEY ("workspaceId") REFERENCES "workspaces" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "prompt_history_modifiedBy_fkey" FOREIGN KEY ("modifiedBy") REFERENCES "users" ("id") ON DELETE SET NULL ON UPDATE CASCADE
);

-- CreateIndex
CREATE INDEX "prompt_history_workspaceId_idx" ON "prompt_history"("workspaceId");