Re: Add \i option to bring in the specified file as a quoted literal

Piotr Marcinczyk escribió:

> <varlistentry>
> + <term><literal>\ib <replaceable class="parameter">filename</replaceable> [ <replaceable class="parameter">quote_string</replaceable> ] </literal></term>
> + <listitem>
> + <para>
> + The <literal>\ib</> command appends content of file <literal>filename</literal>
> + to current query buffer. If parameter <literal>quote_string</literal>
> + is not set, no quotation is used. If it is set, content of file will be
> + quoted by <literal>quote_string</literal> enclosed in <literal>$</literal>.
> + </para>
> + </listitem>
> + </varlistentry>

Doesn't this quoting thing seem like a usability problem? I mean,
there's no way you can possibly know what string to use unless you first
verify the contents of the file yourself. I think this is something
that should be done automatically by psql.

But, really, having to read stuff and transform into a quoted literal
seems wrong to me. I would like something that would read into a client
variable that can later be used as a positional parameter to a
parametrized query, so

\ib homer ~/photos/homer.jpg
insert into people (name, photo) values ('Homer', :homer);

and have psql turn that into

PQexecParams("insert into people (name, photo) values ('homer', $1)",
some_array_with_homer);

so that no quoting needs to happen anywhere.

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Álvaro Herrera http://www.2ndQuadrant.com/
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