-- 프로젝트 테이블 생성
CREATE TABLE IF NOT EXISTS projects (
    id SERIAL PRIMARY KEY,
    job_no VARCHAR(50) UNIQUE NOT NULL,
    project_name VARCHAR(200) NOT NULL,
    created_by_id INTEGER REFERENCES users(id),
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    is_active BOOLEAN DEFAULT TRUE
);

-- 인덱스 생성
CREATE INDEX IF NOT EXISTS idx_projects_job_no ON projects(job_no);
CREATE INDEX IF NOT EXISTS idx_projects_created_by_id ON projects(created_by_id);
CREATE INDEX IF NOT EXISTS idx_projects_is_active ON projects(is_active);