2012/2/1 Tom Lane <t...@sss.pgh.pa.us>: > Pavel Stehule <pavel.steh...@gmail.com> writes: >> I looked to sources and I found a some useful routines for people who >> write extensions and probably PL too. > >> There are datum_compute_size and datum_write from range_types.c. These >> routines can be used in PL libs and maybe in other places. > >> Should be these routines moved to varlena.c and be public? > > Why? It is not common for types to contain other types, and it > certainly isn't likely to happen without needing lots of other > infrastructure --- the existing examples are arrays, records, and > rangetypes, and all of those come with lots of baggage. And there > are a number of choices in those functions that are pretty specific to > rangetypes, as illustrated by the fact that they're not already sharing > code with either arrays or records.
For example I can use this code in my implementation of set of enum (enumset datatype) because I have to wrap a array sometimes (I reuse a array infrastructure). In orafce I can use this code for serialisation and deserialisation Datums - it is used more times there Pavel > > regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers