Tom Lane <t...@sss.pgh.pa.us> wrote: > ITAGAKI Takahiro <itagaki.takah...@oss.ntt.co.jp> writes: > > - Are there any limitations in casting to anyelement? > > It's a no-op ... probably we shouldn't even let you do it, if the > lack of an error leaves room for such misinterpretation as this. > anyelement and friends are placeholders for use in function > declarations, not real types that it makes sense to cast to.
I hope anyelement could be used in cast because casts are supported by almost programming languages where template or generics are available. Moreover, we can cast to anyelement if we use C functions; using oid of anyelement in runtime and querying an associated cast function from system catalog. Regards, --- ITAGAKI Takahiro NTT Open Source Software Center -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
