Re: XML ouput for psql

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Hannu Krosing wrote:
> I think you should force conversion to something standard, try using
> automatic conversion to some known client encoding.

I've thought about this some more, and the only thing I can think
about doing without being too heavy-handed is to change the encoding
to "US-ASCII" whenever someone enters "XML" mode if the encoding is set
to "SQL-ASCII". Perhaps with a warning.

"The character set most commonly use in the Internet and used especially in
protocol standards is US-ASCII, this is strongly encouraged."
http://www.iana.org/assignments/character-sets

On the other hand, SQLX seems to lean toward a strict unicode encoding
(see my reply to Peter Eisentraut for more on that).

> Run "select oid,typname from pg_type;" first if run in xml mode and
> store the oid/columnname pairs.

I realize that I could run a SQL query against pg_type to grab the info,
but I was hoping there was an internal function similar to PQtype which
would return the information.

> you could also store the result in ~/.psql for faster access
> later on and manually clear it if new types are defined

Not only does pg_type has literally hundreds of entries, but there is no
way to guarantee that these are correct at the time when the query is
run, so I don't think this is viable.

- --
Greg Sabino Mullane greg@turnstep.com
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