関連ワード:  postgres create new column with default value    postgres create column with default value    postgres create boolean column with default value    postgres add a column with default value    postgres add column with default value not null    postgres add column with default value null    postgres add column with default value performance    postgresql add a column with default value    postgresql create table column with default value    psql add column with default value  
結果 : postgres create new column with default value