Re: [PATCHES] libpq type system 0.9a - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PATCHES] libpq type system 0.9a
Date
Msg-id 21866.1207760895@sss.pgh.pa.us
Whole thread Raw
In response to Re: [PATCHES] libpq type system 0.9a  (Andrew Chernow <ac@esilo.com>)
Responses Re: [PATCHES] libpq type system 0.9a  (Andrew Chernow <ac@esilo.com>)
Re: [PATCHES] libpq type system 0.9a  (Andrew Chernow <ac@esilo.com>)
List pgsql-hackers
Andrew Chernow <ac@esilo.com> writes:
>>> What parts of PGconn/PGresult do you need to touch that aren't exposed
>>> already?

> Don't need direct access to PGconn at all.

Oh, good, that makes things much easier.

> Also, we basically need write access to every member inside a result 
> object ... since we create our own for arrays and composites by copying 
> the standard result members over.

Hmm.  I guess it wouldn't be completely out of the question to expose
the contents of PGresult as part of libpq's API.  We haven't changed it
often, and it's hard to imagine a change that wouldn't be associated
with a major-version change anyhow.  We could do some things to make it
a bit more bulletproof too, like change cmdStatus from fixed-size array
to pointer to allocated space so that CMDSTATUS_LEN doesn't become
part of the API.

Alternatively, we could keep it opaque and expose a bunch of manipulator
routines, but that might be a lot more cumbersome than it's worth.
        regards, tom lane


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