関連ワード:  add column to existing table postgresql    add foreign key column to existing table postgresql    add primary key column to existing table postgresql    add auto increment column to existing table postgresql    add identity column to existing table postgres    add serial column to existing table postgres    add id column to existing table postgres    add column alter table postgresql    add multiple columns to existing table postgres    postgresql add column to existing table with default value  
結果 : add column to existing table postgresql