Re: Picture with Postgres and Delphi
От | Jonathan Bartlett |
---|---|
Тема | Re: Picture with Postgres and Delphi |
Дата | |
Msg-id | Pine.GSU.4.44.0309102044200.16039-100000@eskimo.com обсуждение исходный текст |
Ответ на | Re: Picture with Postgres and Delphi (Guy Fraser <guy@incentre.net>) |
Список | pgsql-general |
> What is the size limit of bytea, I thought it was 8K? No limit > How do you dump your database when you have bytea, do you need to do a > binary dump? Just dump it normally. > What are you using to insert the binary data? Depends. For php, I use pg_escape_bytea, and just use it as an in-query string value. For perl, I use bind_param with SQL_BINARY. Jon > > Thank you in advance. > > Guy > > Jonathan Bartlett wrote: > > >>For the education of me and maybe others too, why was > >>that? i.e. what problems did you run into, that bytea avoids? > >> > >> > >> > > > >Compared to the filesystem, bytea provides data integrity. > > > >Bytea gives you remote access, which you can cache if needed. > > > >Bytea gives you the same permissions as anything else in Postgres, so you > >don't have to worry about that separately. > > > >Compared to BLOBs, bytea's are just simpler. You can select them with a > >single statement, you don't have to worry about leaving unreferenced > >BLOBs, and, after 4 billion inserts, byteas are still meaningful while > >BLOBs might not be. (due to OID problems). > > > >Jon > > > > > > > > > >>__________________________________ > >>Do you Yahoo!? > >>Yahoo! SiteBuilder - Free, easy-to-use web site design software > >>http://sitebuilder.yahoo.com > >> > >> > >> > > > > > >---------------------------(end of broadcast)--------------------------- > >TIP 5: Have you checked our extensive FAQ? > > > > http://www.postgresql.org/docs/faqs/FAQ.html > > > > > > > > > > -- > Guy Fraser > Network Administrator > The Internet Centre > 780-450-6787 , 1-888-450-6787 > > There is a fine line between genius and lunacy, fear not, walk the > line with pride. Not all things will end up as you wanted, but you > will certainly discover things the meek and timid will miss out on. > > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org >
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