Joey Adams wrote: > Forwarding because the mailing list rejected the original message.
Yes, I am seeing email failures to the 'core' email list. --------------------------------------------------------------------------- > > ---------- Forwarded message ---------- > From: Joey Adams <joeyadams3.14...@gmail.com> > Date: Tue, Jul 19, 2011 at 11:23 PM > Subject: Re: Initial Review: JSON contrib modul was: Re: [HACKERS] > Another swing at JSON > To: Alvaro Herrera <alvhe...@commandprompt.com> > Cc: Florian Pflug <f...@phlo.org>, Tom Lane <t...@sss.pgh.pa.us>, Robert > Haas <robertmh...@gmail.com>, Bernd Helmle <maili...@oopsware.de>, > Dimitri Fontaine <dimi...@2ndquadrant.fr>, David Fetter > <da...@fetter.org>, Josh Berkus <j...@agliodbs.com>, Pg Hackers > <pgsql-hackers@postgresql.org> > > > On Tue, Jul 19, 2011 at 10:01 PM, Alvaro Herrera > <alvhe...@commandprompt.com> wrote: > > Would it work to have a separate entry point into mbutils.c that lets > > you cache the conversion proc caller-side? > > That sounds like a really good idea. ?There's still the overhead of > calling the proc, but I imagine it's a lot less than looking it up. > > > I think the main problem is > > determining the byte length of each source character beforehand. > > I'm not sure what you mean. ?The idea is to convert the \uXXXX escape > to UTF-8 with unicode_to_utf8 (the length of the resulting UTF-8 > sequence is easy to compute), call the conversion proc to get the > null-terminated database-encoded character, then append the result to > whatever StringInfo the string is going into. > > The only question mark is how big the destination buffer will need to > be. ?The maximum number of bytes per char in any supported encoding is > 4, but is it possible for one Unicode character to turn into multiple > "character"s in the database encoding? > > While we're at it, should we provide the same capability to the SQL > parser? ?Namely, the ability to use \uXXXX escapes above U+007F when > the server encoding is not UTF-8? > > - Joey > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
