Re: [GENERAL] DISPLAYING BLOBS/images/text
От | Gilles Darold |
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Тема | Re: [GENERAL] DISPLAYING BLOBS/images/text |
Дата | |
Msg-id | 36A8837A.7D9201AB@neptune.fr обсуждение исходный текст |
Ответ на | DISPLAYING BLOBS/images/text ("Martin Wong" <martin@minook.com.sg>) |
Список | pgsql-general |
Hi, You can use the lo_open() - lo_read() - lo_write() - lo_seek() C like functions that allow to read, write and more directly into your blobs and so display data on the fly... This is already in the documentation - PostgreSQL Programmer's Guide - Chapter 15. Large Objects. Martin Wong wrote: > Dear all, > > I have a pgsql database table packed with images and another one packed with > text files, all blobs. I have a script in perl which first extracts the > images/text via the lo_export into a temp directory on my server and then > it'll display the contents of the file on an HTML page passing HTML headers > inbetween. > > it seems to work fine but it is an extra overhead when it creates a tmp > file. How can this be cached? Or can it be directed directly to the web page > instead of having to go through another step of createing a temp file. > > What do you all say? > > Thanks
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