Re: Missing doc on expression format for ALTER TABLE

Josh Berkus <josh@agliodbs.com> writes:
> ... nowhere in this file (or anywhere else that I can tell) is the syntax for
> the USING expression defined.

Hm?  It says

    ALTER [ COLUMN ] column TYPE type [ USING expression ]

Surely you're not expecting it to repeat the complete syntax for
<expression>.

            regards, tom lane