Re: construct_array() use with PQexec with binary data

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Kenneth Marshall <ktm(at)rice(dot)edu>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: construct_array() use with PQexec with binary data
Date: 2010-05-06 00:58:56
Message-ID: 2380.1273107536@sss.pgh.pa.us
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Kenneth Marshall <ktm(at)rice(dot)edu> writes:
> I am working on adapting a regular PQexec() call to use binary
> transmission of the parameters. One of the parameters is an
> array of BIGINT. Looking in include/utils/array.h, it appears
> that construct_array() will do exactly what I need to get an
> array to pass in with the PQexec() call. Is there a library
> that includes that functionality? Or do I need to cobble it
> together from the various pieces of code? Thank you for any
> help.

libpq does not provide any functionality for manipulating binary
data --- it just sends and receives it. You might care to look at
http://libpqtypes.esilo.com/
which offers a lot of higher-level functionality in this area.

regards, tom lane

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