I have some data in the form of a matrix of doubles (~2 million
rows, ~400 columns) that I would like to store in a Pg table,
along with the associated table of metadata (same number of rows,
~30 columns, almost all text). This is large enough to make
working with it from flat files unwieldy.
Greetings!
I'm looking for tools/resources/ideas for making pg_dump's output
compatible with SQLite v. 3.1.3.
Ideally, I'd love to be able to do something like this (Unix):
% rm -f mydatabase.db
% pg_dump --no-owner --inserts mydatabase | pg_dump2sqlite3 | sqlite3
mydatabase.db
...where
On Thu, Jul 31, 2014 at 3:19 PM, Rob Sargent robjsarg...@gmail.com wrote:
Wouldn't this be a problem only if new subn() could/would re-use an id?
if new sub() generates a unique id, there would be no chance of two subn
entries having the same id.
I'd thought that the ids of the sub_k tables
On Thu, Jul 31, 2014 at 3:52 PM, Kevin Grittner kgri...@ymail.com wrote:
This goes beyond the capabilities of declarative constraints to
enforce. You can enforce it using triggers, but you need to handle
race conditions, which is not easy with MVCC behavior (where reads
don't block anything
I want to implement something akin to OO inheritance among DB tables. The
idea is to define some superclass table, e.g.:
CREATE TABLE super (
super_id INT PRIMARY KEY,
...
-- other columns
);
CREATE TABLE sub_1 (
super_id INT PRIMARY KEY,
:
On Fri, Jul 04, 2014 at 09:24:31AM -0400, Kynn Jones wrote:
I'm looking for a way to implement pseudorandom primary keys in the range
10..99.
The randomization scheme does not need to be cryptographically strong.
As
long as it is not easy to figure out in a few minutes it's good
I'm looking for a way to implement pseudorandom primary keys in the range
10..99.
The randomization scheme does not need to be cryptographically strong. As
long as it is not easy to figure out in a few minutes it's good enough.
My starting point for this is the following earlier message
On Fri, Jul 4, 2014 at 10:13 AM, hubert depesz lubaczewski dep...@gmail.com
wrote:
How many rows do you plan on having in this table?
Currently, only around 10K, but there's expectation that the number will
grow. It's hard to predict how much, hence the generous extra space.
Why this
, Jerry Sievers gsiever...@comcast.net
wrote:
Kynn Jones kyn...@gmail.com writes:
How does one define the most limited role/user possible in PostgreSQL?
Ideally, this role would not be able to do *anything* at all. In
particular, this role would not be able to query meta-information about
On Tue, Jul 1, 2014 at 12:36 PM, Francisco Olarte fola...@peoplecall.com
wrote:
Without seeing your actual commands, it's difficult to know about the
schema stuff...
Well, the actual commands is what the original question was asking for,
since I really don't know how to do any of this (I find
On Tue, Jul 1, 2014 at 1:28 PM, David G Johnston david.g.johns...@gmail.com
wrote:
The first rule regarding PostgreSQL permissions is that everything is
forbidden unless allowed - via GRANT. REVOKE simply undoes whatever has
been granted; it does not put up a block to prevent inheritance of
How does one define the most limited role/user possible in PostgreSQL?
Ideally, this role would not be able to do *anything* at all. In
particular, this role would not be able to query meta-information about
existing tables, functions, etc. with backslash commands such as \dt, \df.
(Of course,
Thank you all for your comments and suggestions!
~kj
I want to code a Perl function (part of a Perl library) for determining the
existence of a particular database (in a given host/port).
One way would be to just attempt making a connection to it, trapping any
errors upon failure (with eval), or discarding the connection upon success.
This
I would like to replicate the following Unix pipe within a Perl script,
perhaps using DBD::Pg:
% pg_dump -Z9 -Fc -U DB_USER FROM_DB | pg_restore -v -d TO_DB -p
SSH_TUNNEL_PORT -h localhost -U DB_USER
Of course, I can try to use Perl's system, and the like, to run this pipe
verbatim, but I this
On Mon, May 10, 2010 at 1:33 PM, Greg Sabino Mullane g...@turnstep.comwrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
I would like to replicate the following Unix pipe within a Perl script,
perhaps using DBD::Pg:
% pg_dump -Z9 -Fc -U DB_USER FROM_DB | pg_restore -v -d
On Mon, May 10, 2010 at 2:59 PM, Joshua D. Drake j...@commandprompt.comwrote:
On Mon, 2010-05-10 at 17:33 +, Greg Sabino Mullane wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
I would like to replicate the following Unix pipe within a Perl script,
perhaps using
I have a table X with some column K consisting of whitespace-separated
words. Is there some SELECT query that will list all these words (for the
entire table) so that there's one word per row in the returned table? E.g.
If the table X is
K
-
foo bar baz
quux
On Tue, Jan 19, 2010 at 4:49 PM, Andy Colson a...@squeakycode.net wrote:
On 1/19/2010 3:39 PM, Andy Colson wrote:
On 1/19/2010 3:23 PM, Kynn Jones wrote:
I have a Perl CGI script (using DBD::Pg) that interfaces with a
server-side Pg database. I'm looking for general
guidelines/tools
I have a Perl CGI script (using DBD::Pg) that interfaces with a server-side
Pg database. I'm looking for general guidelines/tools/strategies that will
help me guard against SQL injection attacks.
Any pointers/suggestions would be much appreciated.
~K
On Tue, Nov 3, 2009 at 2:39 PM, Steve Atkins st...@blighty.com wrote:
Rather, use the pg_config you find in the path to get the include directory
(or the compiler flags) or use App::Info::RDBMS::PostgreSQL or as a last
resort $POSTGRES_HOME.
pg_config did the trick. Thanks!
Kynn
I'm trying to automate an installation of a collection of Perl modules,
which requires determining the path to the correct libpq_fe.h file.
My original implementation of the Makefile.PL file for this installation set
this path as the first valid path that it could extract from the output of
the
Thanks!
kynn
On Tue, Oct 27, 2009 at 4:02 PM, Richard Huxton d...@archonet.com wrote:
Kynn Jones wrote:
How can I list the permissions of a given user/role for a specific
relation/view/index, etc.?
From psql use \dp tablename
Using plain SQL, the closest I can think
Thank you all.
Thanks again!
Kynn
I've noticed that the dumps generated by pg_dump set the parameter
default_with_oids to true in various places (separated by setting it back to
false in-between).
This happens even for databases whose creation and maintenance did not
involve any explicit setting of this parameter.
The
How can I list the permissions of a given user/role for a specific
relation/view/index, etc.?
Thanks!
Kynn
I am porting some code from Perl to Python; in the Perl original I use
either DBI::do or a rickety home-built module to pass multiple SQL
statements (as one single block of SQL) to the Pg server. The typical usage
is something like this:
$dbh-do( EOSQL );
ALTER TABLE $xn OWNER TO xdev;
GRANT ALL
On Sat, Oct 10, 2009 at 4:14 PM, Adrian Klaver akla...@comcast.net wrote:
On Saturday 10 October 2009 12:27:39 pm Adrian Klaver wrote:
On Saturday 10 October 2009 12:09:29 pm Kynn Jones wrote:
I am porting some code from Perl to Python; in the Perl original I use
either DBI::do
I have two Linux servers that are pretty similar to each other, and both are
running PostgreSQL servers, but in one server a certain Perl script succeeds
in connecting to the localhost server whereas in the other one the same
script fails. The error on the second server is of the form
Thank you all! Someone else in our team found the problem (a missing user
in the failing server).
k
I need to compile some code that uses libpq. For this I need to determine
the directories to use for the header and library files.
The machine I'm using has multiple copies of the files libpq-fe.h and
libpq.a. How can I determine which one of all these copies are the ones
that correspond to the
On Mon, Apr 27, 2009 at 11:10 AM, Martijn van Oosterhout
klep...@svana.orgwrote:
On Mon, Apr 27, 2009 at 10:51:45AM -0400, Kynn Jones wrote:
I need to compile some code that uses libpq. For this I need to
determine
the directories to use for the header and library files.
The machine
On Mon, Apr 13, 2009 at 4:54 PM, Scott Marlowe scott.marl...@gmail.comwrote:
On Mon, Apr 13, 2009 at 2:01 PM, Kynn Jones kyn...@gmail.com wrote:
When I try to run
% psql
as the postgres user, I get the error
psql: FATAL: no pg_hba.conf entry for host [local], user postgres,
database
On Tue, Apr 14, 2009 at 12:22 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Kynn Jones kyn...@gmail.com writes:
On Mon, Apr 13, 2009 at 4:54 PM, Scott Marlowe scott.marl...@gmail.com
wrote:
On Mon, Apr 13, 2009 at 2:01 PM, Kynn Jones kyn...@gmail.com wrote:
as the postgres user, I get the error
On Tue, Apr 14, 2009 at 2:53 PM, Alvaro Herrera
alvhe...@commandprompt.comwrote:
Kynn Jones escribió:
Is there a general way to get positive confirmation that a particular
pg_hba.conf has been re-read upon bouncing the server with
SHOW hba_file;
That's handy. Thanks!
Kynn
When I try to run
% psql
as the postgres user, I get the error
psql: FATAL: no pg_hba.conf entry for host [local], user postgres,
database postgres, SSL off
I don't understand this error, since the pg_hba.conf file includes the line:
local all all ident sameuser
What could explain this
On Wed, Mar 18, 2009 at 3:57 PM, Greg Sabino Mullane g...@turnstep.comwrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
I'm trying to use Perl's DBD::Pg module to import a file as a large
object.
For this I'm using the following:
my $oid = $dbh-func( /absolute/path/to/file,
I'm trying to use Perl's DBD::Pg module to import a file as a large object.
For this I'm using the following:
my $oid = $dbh-func( /absolute/path/to/file, 'lo_import' );
When I do this, a new record is added to pg_largeobject, with a
proper-looking non-null loid, but the data field remains
I have a C program that reads a large binary file, and uses the read
information plus some user-supplied arguments to generate an in-memory data
structure that is used during the remainder of the program's execution. I
would like to adapt this code so that it gets the original binary data from
a
On Sun, Mar 15, 2009 at 5:06 PM, John R Pierce pie...@hogranch.com wrote:
Kynn Jones wrote:
I have a C program that reads a large binary file, and uses the read
information plus some user-supplied arguments to generate an in-memory data
structure that is used during the remainder
Is there a reliable way to find out the (Unix) PID associated with a
database handle generated by Perl DBI's database connection?
TIA!
Kynn
Thank you all. From your replies I was able to figure out what I needed:
\set ECHO queries
Kynn
On Wed, Dec 3, 2008 at 7:14 PM, Kynn Jones [EMAIL PROTECTED] wrote:
Hi. I have a collection of SQL statements stored in a file that I run
periodically via cron. Running this script takes a bit
Hi. I have a collection of SQL statements stored in a file that I run
periodically via cron. Running this script takes a bit too long, even for
a cron job, and I would like to profile it.
I learned from Andreas Kretschmer (in another thread, in the
pgsql-performance list) about the \timing
Suppose I have two table X and Y and I want to compute the ratio of the
number of rows in X and the number of rows in Y. What would be the SQL I
could type into a psql session to get this number?
This is an example of the recurring problem of performing arithmetic using
the result of various
Thanks for all your suggestions!
Kynn
Suppose I have a table T that has, among its columns, the fields X and Y,
where Y is an integer, and multiple rows with the same value of X are
possible. I want to select the rows corresponding to the greatest values of
Y for each value of X. E.g. suppose that T is
X Y Z
a 1 eenie
a 3 meenie
a
Thank you all!
Kynn
Hi!
If I try something like
ALTER TABLE foo
ADD CONSTRAINT foo_unique_xy
UNIQUE ( UPPER( x ), UPPER( y ) );
...I get a syntax error
ERROR: syntax error at or near (
LINE 3: UNIQUE ( UPPER( x ), UPPER( y ) );
Is there a way to do this?
TIA!
Kynn
Hi. I have a database that is created and populated by a Perl script.
(FWIW, the size of this database is about 12GB, according to
pg_database_size()).
If, right after the database is built, I connect to it and manually run
VACUUM ANALYZE, I get the warning
NOTICE: max_fsm_relations(1000)
How can I find the limits (if any) on things such as the maximum number of
tables, views, indices, columns-per-table, size of database, etc.?
(At the moment I'm particularly interested any limits that my exist on the
numbers of tables and views that may exist in any one database.)
TIA!
Kynn
On Mon, Jun 23, 2008 at 2:21 PM, Steve Atkins [EMAIL PROTECTED] wrote:
In real use you're unlikely to hit any limits, theoretical or practical,
but if you start to use a silly number of tables and so on you're likely to
hit performance issues eventually. I'm not sure where that threshold
On Wed, Jun 18, 2008 at 4:08 PM, Scott Marlowe [EMAIL PROTECTED]
wrote:
On Wed, Jun 18, 2008 at 1:48 PM, Kynn Jones [EMAIL PROTECTED] wrote:
What's the simplest way to copy a table from one database to another one
running on the same server?
Easiest way to me:
pg_dump -t tablename
What's the simplest way to copy a table from one database to another one
running on the same server?
TIA!
Kynn
Hi. I'm trying to automate the updating of a database. This entails
creating the new database from scratch (which takes a long time), under a
different name, say mydb_tmp, and once this new database is ready, doing a
hot swap, i.e. renaming the existing database to something like
mydb_20080613
When I try to run pg_restore (as the postgres superuser), it appears to
freeze after printing the following:
pg_restore -U yours_truly -d somedb /path/to/somedb.dmp
pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 24; 1255 365299855
Suppose table X has two columns: class (TEXT) and size (INT). I want a
listing showing the (up to) 5 largest values of size for each value of
class (for some values of class the total number of available records
may be less than 5).
What would be the simplest way to achieve such a listing? It
On Fri, Mar 14, 2008 at 7:12 PM, Tom Lane [EMAIL PROTECTED] wrote:
Kynn Jones [EMAIL PROTECTED] writes:
Initially I didn't know what our max_locks_per_transaction was (nor even
a
typical value for it), but in light of the procedure's failure after
3500
iterations, I figured
Tom, Albe,
Thanks for the client_min_messages pointer; it did the trick.
On Sun, Mar 16, 2008 at 2:53 PM, Scott Marlowe [EMAIL PROTECTED]
wrote:
If you start postgresql from the pg_ctl command line and it's set to
log to stdout, then continue to use that terminal for psql afterwards,
you
Tom, Alvaro:
Thank you much for the clarification. It's back to the drawing board for
me!
Kynn
On Mon, Mar 17, 2008 at 10:55 AM, Tom Lane [EMAIL PROTECTED] wrote:
Kynn Jones [EMAIL PROTECTED] writes:
I'm leaning towards the re-design option, primarily because I really
don't
really
I was running an SQL file in psql (via \i) and I noticed that the execution
had been stuck at a particular place for a few hours, which was far longer
than expected.
So I killed the processing of the file (with Ctrl-C), vacuumed everything I
could think of and tried again.
The same thing
Hi!
How does one silence NOTICE and WARNING messages in psql? I've tried \set
QUIET on, \set VERBOSITY terse, and even \o /dev/null, but I still get them!
TIA!
Kynn
I've written a PL/pgSQL function that is supposed to create a whole bunch
(~4000) tables:
CREATE OR REPLACE FUNCTION create_tables () RETURNS void
AS $$
DECLARE
_s RECORD;
_t TEXT;
BEGIN
DROP TABLE IF EXISTS base CASCADE;
CREATE TABLE base ( /* omit lengthy definition */ );
FOR _s IN
On Tue, Mar 11, 2008 at 5:28 PM, Tom Lane [EMAIL PROTECTED] wrote:
Kynn Jones [EMAIL PROTECTED] writes:
If one can set up this insert operation so that it happens automatically
whenever a new connection is made, I'd like to learn how it's done.
For manual psql sessions, you can put some
On Tue, Mar 11, 2008 at 4:51 PM, Andrej Ricnik-Bay [EMAIL PROTECTED]
wrote:
On 12/03/2008, Kynn Jones [EMAIL PROTECTED] wrote:
Of course I may not have quite
understood how that this procedure adds useful definitions,
mostly subs, to Perl's main package. This needs to be done
for each
On Tue, Mar 11, 2008 at 7:17 AM, Sam Mason [EMAIL PROTECTED] wrote:
I'm not quite sure if this would help your use case, but a few editors
allow you to send blocks of text to other processes. For example, under
Emacs I can hit Ctrl+C twice and it will grab the current paragraph
and send it
On Tue, Mar 11, 2008 at 10:10 AM, Gurjeet Singh [EMAIL PROTECTED]
wrote:
The SQL standard, and Postgres, allow you to nest comments; some
commercial RDBMS' do not provide this, and hence people think it's not
possible in SQL.
Ah! Finally I see what Martin was getting at in his reply.
Well,
On Mon, Mar 10, 2008 at 12:28 PM, Craig Ringer [EMAIL PROTECTED]
wrote:
Personally I use vim to comment out small blocks. However, this is
rarely required as I break my SQL up into logical chunks in separate
files.
I should get into that habit in any case. Thanks for pointing it out.
Kynn
On Mon, Mar 10, 2008 at 7:47 PM, Alban Hertroys
[EMAIL PROTECTED] wrote:
You can't define triggers on system tables.
Oh, well... :-/ Thanks for the reality check!
If not, is there some other way to set up a trigger that
Oops. I guess a cut-and-paste error in my original message must
Hi! When it comes to programming SQL, my newbie approach is to write my
code in a file test.sql, which I test from within psql by using
my_db= \i /some/path/test.sql
...and (once I'm satisfied with the code) copy and paste it to a different
file that has the SQL I've written so far for the
Hi! I want to set up a trigger (somehow) that, whenever someone connects
database my_db, will fire and thereby run a stored PLPERL procedure
perl_setup() in the new connection's environment. (BTW, this procedure adds
useful definitions, mostly subs, to Perl's main package. This needs to be
done
In a recent post I mentioned that I had a PLPERL procedure that
...adds useful definitions, mostly subs, to Perl's main package.
I thought this claim needs further clarification, since the docs for PLPERL
include a warning that may give readers the impression that defining Perl
functions within
I just ran VACUUM ANALYZE and got this warning I've never seen before:
WARNING: relation public.some_big_table contains more than
max_fsm_pages pages with useful free space
HINT: Consider compacting this relation or increasing the configuration
parameter max_fsm_pages.
What does the hint mean
Suppose I have two tables, A and B, with k(A) and k(B) columns respectively,
and let's assume to begin with that they have the same number of rows r(A) =
r(B) = r.
What's the simplest way to produce a table C having r rows and k(A) + k(B)
columns, and whose i-th row consists of the k(A) columns of
On Wed, Feb 27, 2008 at 7:39 AM, Kynn Jones [EMAIL PROTECTED] wrote:
Suppose I have two tables, A and B, with k(A) and k(B) columns
respectively, and let's assume to begin with that they have the same number
of rows r(A) = r(B) = r.
What's the simplest way to produce a table C having r rows
(Sorry for asking so many questions!)
What techniques can one use to monitor the progress of a stored procedure?
Specifically, how can I get the procedure to print a progress indicator
message to the screen every once in a while?
I have a stored procedure that has been running for a very long
Is there a simple way to copy a table from one database to another without
generating an intermediate dump file?
TIA!
Kynn
On Sun, Feb 24, 2008 at 7:08 PM, Erik Jones [EMAIL PROTECTED] wrote:
There was an article that covered this in the Postgres Online Journal
(
http://www.postgresonline.com/journal/index.php?/categories/6-pl-programming).
Basically, do this:
CREATE OR REPLACE FUNCTION foo(text, text)
Suppose that stored procedure foo has the signature:
foo( text, text ) RETURNS SETOF text
Also, I have some table bar, and that column bar.baz is of type text.
Now, I'd like to run something like
SELECT foo( frobozz, baz ) FROM bar;
If I try this psql complains that I'm trying to execute
On Fri, Feb 22, 2008 at 6:51 PM, Steve Atkins [EMAIL PROTECTED] wrote:
On Feb 22, 2008, at 3:40 PM, Kynn Jones wrote:
Hi. Suppose I have a database that contains a meta table that
holds the names of other the tables in the database, keyed by human-
readable but longish strings. I would
On Fri, Feb 22, 2008 at 8:12 PM, Greg Stark [EMAIL PROTECTED] wrote:
You could use hashtext() which is Postgres's internal hash function.
Awesome!
There's some possibility it could change in future versions of Postgres
though.
I can live with that, especially if all that changes is the
Hi!
Does PostgreSQL expose its hash function? I need a fast way to hash a
string to a short code using characters in the set [A-Za-z0-9_]. (I'm not
sure yet how long this code needs to be, but I think even something as short
as length 2 may be enough.)
TIA!
Kynn
Hi. Suppose I have a database that contains a meta table that holds the
names of other the tables in the database, keyed by human-readable but
longish strings. I would like to write queries that first compute the
names of some tables (i.e. by looking them up in meta table), and after
that they
Hi. I've written a Unix shell (zsh) script to streamline the process of
duplicating a database. At the heart of this script I have the following
pipeline:
pg_dump -U $OWNER -Fc $FROM | pg_restore -U $OWNER -d $TO
As far as the shell is concerned, this pipeline fails, due to three errors
I have two classes of objects, A and B, where B is just a special case
of A. (I.e., to describe a B-type object I need to specify the same
fields as for an A-type object, plus a whole bunch additional fields
specific to B alone.) Furthermore, there's a third class T that is in
a many-to-one
On 11/5/07, andy [EMAIL PROTECTED] wrote:
Hey, I was just thinking about this... instead of disabling the FK's,
what about adding a temp table where you could COPY into, then fire off
a bunch of update's to setup the id fields, etc, etc, then do an Insert
into realtable select * from
Hi, everyone.
Is there a standard way to disable a table foreign-key constraint temporarily?
I thought that this would be a fairly common thing to want to do, but
I only found this snippet online:
-- to disable
UPDATE pg_class SET reltriggers=0 WHERE relname = 'your_table';
-- to re-enable
On 11/5/07, Erik Jones [EMAIL PROTECTED] wrote:
On Nov 5, 2007, at 10:50 AM, Kynn Jones wrote:
Is there a standard way to disable a table foreign-key constraint
temporarily?
I thought that this would be a fairly common thing to want to do...
Can you explain what it is you're actually
On 11/5/07, Erik Jones [EMAIL PROTECTED] wrote:
...see about redefining the foreign key
as being deferrable...
Yep, that'll do it. Thanks!
kj
---(end of broadcast)---
TIP 3: Have you checked our extensive FAQ?
So... not really an answer (other than I used a stored proc)
Actually, I'm interested in your solution.
Just to make sure I understood what you did: you bulk-populated (i.e.
with $dbh-do('COPY...'), $dbh-pg_putline(...), $dbh-pg_endcopy) the
referring tables, with their fkey constraints
Hi. This is a recurrent problem that I have not been able to find a
good solution for. I have large database that needs to be built from
scratch roughly once every month. I use a Perl script to do this.
The tables are very large, so I avoid as much as possible using
in-memory data structures,
On 10/19/07, Gregory Stark [EMAIL PROTECTED] wrote:
Kynn Jones [EMAIL PROTECTED] writes:
CREATE OR REPLACE FUNCTION canonicalize( anyelement, anyelement )
RETURNS anyarray AS
$$
BEGIN
IF $1 $2 THEN RETURN ARRAY[ $1, $2 ];
ELSERETURN ARRAY[ $2, $1 ];
END
This is a follow-up to a question I asked earlier.
On 10/19/07, Gregory Stark [EMAIL PROTECTED] wrote:
What you need is:
CREATE UNIQUE INDEX foo_uniq_x_y on foo (canonicalize(x,y));
LOCATION: base_yyerror, scan.l:795
OK, now, what if instead of this
- ALTER TABLE foo ADD CONSTRAINT
I have a table used to store information about pairs of items. This
information is independent of the order of the two items in the pair,
so having two records
X Y info
Y X info
in the table would be redundant. But as far as I can tell, this
situation would not violate
I understand that in some cases (e.g. when add_missing_from is true),
Pg will modifiy some SQL input before running it. Is there a way to
get Pg to print out the SQL it will actually execute? Is it possible
to get to *just* print out this SQL without actually executing it?
TIA!
kj
I'd like to set some config parameter temporarily; i.e. so that the
new setting is active, say, only during the execution of the next SQL
statement. This is the best I've come up with:
-- first, save the original setting of the parameter
CREATE TEMP TABLE save_config AS
SELECT setting FROM
I'm hoping to get some advice on a design question I'm grappling with.
I have a database now that in many respects may be regarded as an
collection of a few hundred much smaller parallel databases, all
having the same schema. What I mean by this is that, as far as the
intended use of this
Thank you very much for your replies. Given the differences in the
opinions expressed, I thought I would describe the database briefly.
The purpose of the database is basically translation of terms.
Imagine a collection of disjoint sets A, B, C, ...
Now imagine that for each element of a set
On 7/6/07, Stephen Frost [EMAIL PROTECTED] wrote:
* Kynn Jones ([EMAIL PROTECTED]) wrote:
Hi! I am in the process of writing a PostgreSQL lexer/parser in Perl,
because everything else I've found in this area is too buggy. I'm
basing this lexer/parser on the lexer and parser encoded
Hi! I am in the process of writing a PostgreSQL lexer/parser in Perl,
because everything else I've found in this area is too buggy. I'm
basing this lexer/parser on the lexer and parser encoded respectively
in scan.l and gram.y under src/backend/parser.
I'm looking for a solid collection of
I'm trying to install PostgreSQL on my Mac laptop.
I used MacPorts for the first stage of the installation. I did the
following:
% sudo port install postresql82 +perl +python
This took quite a while to complete, but it ran without a hitch.
From that point on I followed the instructions given
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