On Mon, 2008-06-23 at 15:13 +0200, Pavel Stehule wrote: > this patch enhance current syntax of CREATE FUNCTION statement. It > allows creating functions with variable number of arguments. This > version is different than last my patches. It doesn't need patching > PL. Basic idea is transformation of real arguments (related to > declared variadic argument) to array. All changes are mostly in > parser.
Something for the TODO. An added thought with regard to variadic functions: when we have them, we should be able to parse/transform repeated operator sequences into a call to a variadic function, if it exists. e.g. w || x || y || z can be transformed into a call to concat_variadic(w, x, y, z) This can then be made to perform better than concat(concat(concat(w, x), y), z) which would involve lots of wasted memory copies. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-patches mailing list (pgsql-patches@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-patches
