Re: bytea

Thanks for all the answers everybody, but I need to know also an answer
to the other question:

Does the bytea make its own files automatically for large objects?

Also, how about backups with tables having bytea columns.?

Jonathan Bartlett wrote:

>>Also, if I wanted to put a *.pdf file in a bytea column, what functions
>>do I use to escape any characters in it?
>>
>>
>
>What programming language are you using?
>
>In Perl, you do something like:
>
>$sth->bind_param(1, $file_data, DBI::SQL_BINARY); #DBI::SQL_BINARY is
>deprecated, but it works
>
>In php you do:
>
>$file_data = pg_escape_bytea($file_data);
>
>$db->query("insert into blah(blahh) values ('${file_data}'::bytea);
>
>To retrieve the info in Perl, it's just a regular fetchrow()
>
>my ($file_data) = $sth->fetchrow();
>
>In php, you have to run stripcslashes() on the data.
>
>list($file_data) = $query->fetchrow();
>$file_data = stripcslashes($file_data);
>
>Jon
>
>
>
>
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