On Jun 12, 2009, at 11:53 AM, Yaroslav Tykhiy wrote:
I cannot but ask the community a related question here: Can such
design, that is, storing quite large objects of varying size in a
PostgreSQL database, be a good idea in the first place? I used to
believe that what RDBMS were really
DimitryASuplatov wrote:
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
I cannot but ask the community a related question here: Can such
design, that is, storing quite large objects of varying
Yaroslav Tykhiy wrote:
DimitryASuplatov wrote:
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
I cannot but ask the community a related question here: Can such design,
that is, storing quite
2009/6/6 DimitryASuplatov gene...@gmail.com:
Hello,
I am very new to postgresql database. I`ve used a little of MySql
previously.
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
That means
This is a recurring debate and there are pros and cons for both sides.
It usually comes down to whether you need transactional guarantees for
these large objects.
There are also practical concerns. Transfering these large objects
over a single database tcp connection limits the application
If I had an admin roaming through my document server deleting document files
out from under my database, that's a problem I would solve very
quickly--with a completely non-technical solution.
After all, what's to prevent such a person from deleting pgsql data files???
--
Scott Ribe
Scott Ribe wrote:
If I had an admin roaming through my document server deleting document files
out from under my database, that's a problem I would solve very
quickly--with a completely non-technical solution.
After all, what's to prevent such a person from deleting pgsql data files???
Yea,
On Friday 12 June 2009, Greg Stark gsst...@mit.edu wrote:
Also, it makes backups a pain since it's a lot easier to back up a
file system than a database. But that gets back to whether you need
transactional guarantees. The reason it's a pain to back up a database
is precisely because it needs
It's far easier to backup and restore a database than millions of small
files. Small files = random disk I/O. The real downside is the CPU time
involved in storing and retrieving the files. If it isn't a show stopper,
then putting them in the database makes all kinds of sense.
On the
On Friday 12 June 2009, Scott Ribe scott_r...@killerbytes.com wrote:
It's far easier to backup and restore a database than millions of small
files. Small files = random disk I/O. The real downside is the CPU time
involved in storing and retrieving the files. If it isn't a show
stopper,
On Fri, 2009-06-12 at 19:53 +1000, Yaroslav Tykhiy wrote:
DimitryASuplatov wrote:
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
I cannot but ask the community a related question here:
On Fri, 2009-06-12 at 09:07 -0700, Alan Hodgson wrote:
On Friday 12 June 2009, Scott Ribe scott_r...@killerbytes.com wrote:
It's far easier to backup and restore a database than millions of small
files. Small files = random disk I/O.
That depends on how you're backing up.
If you want to
DimitryASuplatov wrote:
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
That means that I need two functions. First - grab file from the
directory, store it in the database and delete from the disk;
* DimitryASuplatov:
I`ve also worked out how to do this simply from bash
./bin/psql mypdb EOF
insert into pdb values ('`cat /file/name`');
EOF
This doesn't work if the file contains embedded ' characters (and
backslashes and NULs are also problematic). You will also get errors
if the file
1/ Is it possible?
2/ Could you give me some quick tips on how to manage it from the start
so that I knew what to look for in the manual?
Not sure how much you know about programming, but easiest will probably
be to have a small application. Here is some code in the Npgsql library
Hi,
Le 6 juin 09 à 12:41, DimitryASuplatov a écrit :
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
The following article deals specifically with files containing XML but
goes as far as
Hello,
I am very new to postgresql database. I`ve used a little of MySql
previously.
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
That means that I need two functions. First - grab file from the
On Saturday 6. June 2009, DimitryASuplatov wrote:
Hello,
I am very new to postgresql database. I`ve used a little of MySql
previously.
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
That means that
On 06/06/2009 11:41, DimitryASuplatov wrote:
My task is to store a lot (10^5) of small ( 10 MB) text files in the
database with the ability to restore them back to the hard drive on
demand.
That means that I need two functions. First - grab file from the
directory, store it in the database
On 06/06/2009 14:37, DimitryASuplatov wrote:
But then comes the problem because the only command I found to read in
the file content is COPY but the following command would not work
Yes, this wont work here - COPY is intended for reading an entire table
to or from a disk file, not a single
Thank you very much.
I`ve also worked out how to do this simply from bash
./bin/psql mypdb EOF
insert into pdb values ('`cat /file/name`');
EOF
SDA
On Sat, 2009-06-06 at 16:32 +0100, Raymond O'Donnell wrote:
On 06/06/2009 14:37, DimitryASuplatov wrote:
But then comes the problem because
Thank you for answering.
I`ve read a manual and now I have a more advanced question.
1/ I`ve created a table in the database
mypdb=# create table pdb(
index int,
filename text,
filecontent text
);
2/ Then I want to read a file into it
First I insert metainfo
mypdb=# insert into pdb (index ,
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