feat: add default to created_at and updated_at

migrations/init.sql

@@ -2,21 +2,21 @@ CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
 
 CREATE TYPE valid_status AS ENUM ('TODO', 'DOING', 'DONE');
 
-CREATE TABLE tasks(
+CREATE TABLE IF NOT EXISTS tasks(
   id uuid DEFAULT uuid_generate_v4(),
   content VARCHAR(50),
   status valid_status,
-  created_at TIMESTAMP,
-  updated_at TIMESTAMP,
+  created_at TIMESTAMP DEFAULT NOW(),
+  updated_at TIMESTAMP DEFAULT NOW(),
   deleted_at TIMESTAMP
 );
 
-CREATE TABLE users(
+CREATE TABLE IF NOT EXISTS users(
   id uuid DEFAULT uuid_generate_v4(),
   email VARCHAR(255) UNIQUE NOT NULL,
   password VARCHAR(255) NOT NULL,
   is_verified BOOLEAN DEFAULT false,
-  created_at TIMESTAMP,
-  updated_at TIMESTAMP,
+  created_at TIMESTAMP DEFAULT NOW(),
+  updated_at TIMESTAMP DEFAULT NOW(),
   deleted_at TIMESTAMP
 );