関連ワード:  alter table postgresql change column type    postgresql alter table change column type to timestamp with timezone    postgresql alter table change column type varchar length    postgresql alter table change column type serial    postgresql alter table change column type not null    postgresql alter table change column type to date    psql alter table change column type    postgres alter table change column type not null    postgres alter table change column type default value    alter table change column type postgres example  
結果 : alter table postgresql change column type