関連ワード:  alter table modify column postgres type    alter table update column type postgres    alter table change column type postgres example    alter table modify column datatype in postgresql    alter table change column type psql    alter table modify column data type postgresql example    postgres alter table change column type not null    postgres alter table change column type default value    postgres alter table change column type using    postgres alter table change column type to serial  
結果 : alter table modify column postgres type