"Phil Endecott" <spam_from_postgresql_general(at)chezphil(dot)org> writes:
> - Can anyone offer a list of which commands are compatible with
> PQexecParams and which aren't?
Plannable queries can take parameters: SELECT/INSERT/UPDATE/DELETE.
Utility commands (which is everything else) don't do any expression
evaluation and thus can't deal with parameters.
> - Is this likely to change any time soon?
No.
regards, tom lane