It's rumoured that Hiroshi Inoue once said: > Tom Lane wrote: >> >> "Dave Page" <[EMAIL PROTECTED]> writes: >> > No, but with them we can avoid cluttering the wire protocol with >> > fields for all this, and the JDBC required data. With 2 numeric >> > columns (attrelid, attnum), any application/interface can query the >> > system catalogs easily for whatever extra info they like. >> >> This is my feeling also. We shouldn't try to guess in the protocol >> exactly what set of information will be wanted by a frontend; we >> should just provide the catalog keys needed to look up whatever is >> wanted. > > Does looking up by the catalog keys take no cost ?
Obviously there is cost, but doing a lookup only on demand, has got to be cheaper in the long run than including the entire column definition in the message whether it's wanted or not? Regards, Dave. ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
