diff --git a/lib/index.d.ts b/lib/index.d.ts
index 044d2ff..669a025 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -14,7 +14,9 @@ type RemoveFirstParam<T> = T extends (first: any, ...rest: infer P) => infer R ?
 export interface Relation {
     type: "REL";
     table: keyof Tables;
+    default?: string;
     nullable?: boolean;
+    unique?: boolean;
 }
 export interface Column {
     type: DataType;
diff --git a/lib/index.js b/lib/index.js
index 5ef442a..f547df5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -5,25 +5,20 @@ export class BunORM {
     tables;
     db;
     createTable = (table, opts) => (typeof this.db.run(`CREATE TABLE IF NOT EXISTS ${table} ('id' INTEGER PRIMARY KEY AUTOINCREMENT,${Object.entries(opts.columns)
-        .filter(([_, opts]) => opts.type !== "REL")
         .map(([col, opts]) => [
         `'${col}'`,
-        opts.type === "JSON" ? "TEXT" : opts.type,
+        opts.type === "JSON"
+            ? "TEXT"
+            : opts.type === "REL"
+                ? "INTEGER"
+                : opts.type,
         opts.default && `DEFAULT ${opts.default}`,
         opts.unique && "UNIQUE",
         !opts.nullable && "NOT NULL",
     ]
         .filter((x) => !!x)
         .join(" "))
-        .join()}${Object.entries(opts.columns).filter(([_, opts]) => opts.type === "REL").length
-        ? "," +
-            Object.entries(opts.columns)
-                .filter(([_, opts]) => opts.type === "REL")
-                .map(([col, opts]) => [`'${col}' INTEGER`, !opts.nullable && "NOT NULL"]
-                .filter((x) => !!x)
-                .join(" "))
-                .join()
-        : ""},'updatedAt' DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,'createdAt' DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL${Object.entries(opts.columns).filter(([_, opts]) => opts.type === "REL").length
+        .join()},'updatedAt' DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,'createdAt' DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL${Object.entries(opts.columns).filter(([_, opts]) => opts.type === "REL").length
         ? "," +
             Object.entries(opts.columns)
                 .filter(([_, opts]) => opts.type === "REL")