Re: Storing small image files

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От Karl Denninger
Тема Re: Storing small image files
Дата
Msg-id 518BD1CF.3070305@denninger.net
обсуждение исходный текст
Ответ на Re: Storing small image files  (Alvaro Herrera <alvherre@2ndquadrant.com>)
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On 5/9/2013 11:34 AM, Alvaro Herrera wrote:
Karl Denninger escribió:

To encode:


write_conn = Postgresql communication channel in your software that is
open to write to the table

char    *out;
size_t    out_length, badge_length;

badge_length = function-to-get-length-of(badge_binary_data);  /* You
have to know how long it is */

out = PQescapeByteaConn(write_conn, badge_binary_data, badge_length,
&out_length); /* Convert */

That function allocates the required memory for the conversion.
I think you're better off with PQexecParams() so that you don't have to
encode the image at all; just load it in memory and use it as a
parameter.

Yeah, you can go that route too.

--
Karl Denninger
karl@denninger.net
Cuda Systems LLC

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