Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Erwin Brandstetter escribi:
>> If I want to change the default order of two columns of a table, can I
>> just manipulate the values in
>> pg_catalog.pg_attribute.attnum?
> It works -- as long as the table is empty.
And as long as you have no views, foreign keys, indexes, defaults,
rules, etc etc etc referencing the columns.
Short answer is don't even think of trying it.
regards, tom lane