Обсуждение: Best way to store files inside db

I am looking for some help/advice.  We need to store some files inside
postgres (at least it has been requested of us).  What is the best way
to do this?  Right now, the files are all human readable text files, but
that could change.

I could store the contents of the human readable files in a text field,
but I believe the requester would really like the real file to be stored
as close to unmodified as possible.

How can I do this?  I am thinking to store unmodified, I'll have to use
a bytea field.  However, how do I tell the database to insert a file
(say "c:\test.txt") into the table?

Thanks for any help/pointer.

Chris

Chris Hoover wrote:
> I am looking for some help/advice.  We need to store some files inside
> postgres (at least it has been requested of us).  What is the best way
> to do this?  Right now, the files are all human readable text files, but
> that could change.

It depends on the size of the files. If the files are all reasonably
small then bytea is a fine solution. However if you are going to be
storing 5 meg PDF or some such thing I would suggest Large Objects.

> How can I do this?  I am thinking to store unmodified, I'll have to use
> a bytea field.  However, how do I tell the database to insert a file
> (say "c:\test.txt") into the table?


http://www.postgresql.org/docs/8.0/interactive/largeobjects.html

ALl the language APIs have similar functions.


Sincerely,

Joshua D. Drake



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