In my opinion (without looking at the code), if you have a grouping-function
or ORDER BY or GROUP BY clause, then yes, the whole query has to be executed
to show the first row of the result-set. But if the query doesn't have any
of these clauses, then the DB has the ability to send back the first
On Fri, Feb 29, 2008 at 02:53:05PM +0530, Gurjeet Singh wrote:
In my opinion (without looking at the code), if you have a grouping-function
or ORDER BY or GROUP BY clause, then yes, the whole query has to be executed
to show the first row of the result-set. But if the query doesn't have any
of
On Fri, Feb 29, 2008 at 3:55 PM, Martijn van Oosterhout [EMAIL PROTECTED]
wrote:
On Fri, Feb 29, 2008 at 02:53:05PM +0530, Gurjeet Singh wrote:
In my opinion (without looking at the code), if you have a
grouping-function
or ORDER BY or GROUP BY clause, then yes, the whole query has to be
On Fri, Feb 29, 2008 at 05:28:29PM +0530, Gurjeet Singh wrote:
On Fri, Feb 29, 2008 at 3:55 PM, Martijn van Oosterhout [EMAIL PROTECTED]
wrote:
Except if you have an index on the column you're ordering by. Then the
server can really return the first row quickly.
Quickly for sure... but I
On Fri, Feb 29, 2008 at 7:20 PM, Sam Mason [EMAIL PROTECTED] wrote:
On Fri, Feb 29, 2008 at 05:28:29PM +0530, Gurjeet Singh wrote:
On Fri, Feb 29, 2008 at 3:55 PM, Martijn van Oosterhout
[EMAIL PROTECTED] wrote:
Except if you have an index on the column you're ordering by. Then the
When one uses LIMIT, as in LIMIT 1, is the entire query executed on the server
side, but only one record returned?
PostgreSQL 7.4.19 on i686-redhat-linux-gnu, compiled by GCC gcc (GCC) 3.4.6
On Thu, Feb 28, 2008 at 3:20 PM, Terry Lee Tucker [EMAIL PROTECTED] wrote:
When one uses LIMIT, as in LIMIT 1, is the entire query executed on the server
side, but only one record returned?
ú : 1999N430ú 0:01
¼ : Re: [GENERAL] LIMIT QUESTION
Chris Bitmead ha scritto:
Only PostgreSQL 6.5 Beta supports LIMIT.
I've an elementary question. What's wrong with the following :
dbtest= select * from testusers limit 10;
ERROR: parser: parse error at or near "10&
] [EMAIL PROTECTED]
ú : 1999N430ú 0:01
¼ : Re: [GENERAL] LIMIT QUESTION
This works in 6.4.2:
set QUERY_LIMIT TO '10'; or
set QUERY_LIMIT = '10';
On Thu, 29 Apr 1999, [iso-8859-1] José Soares wrote:
Use SET QUERY_LIMT TO 10;
this should work in 6.4.2
This is from the Tutorial for version 6.4 of PostgreSQL.
SET - Set run-time parameters for session
SET variable { TO | = } { 'value' | DEFAULT }
SET TIME ZONE { 'timezone' | LOCAL };
QUERY_LIMIT
Sets the number of rows returned by a query.
Value
Maximum number of rows
Martin Wong ha scritto:
Sorry for the previous posting. The following worked.
BTW, this affects just this database or throughout the entire postgresql
server?
Only current_session;
And, how does one reset this variable to max?
RESET QUERY_LIMIT;
-Original Message-
·ol : José Soares [EMAIL PROTECTED]
¶æ : Chris Bitmead [EMAIL PROTECTED]
CC : Martin Wong [EMAIL PROTECTED]; [EMAIL PROTECTED]
[EMAIL PROTECTED]
ú : 1999N430ú 0:01
¼ : Re: [GENERAL] LIMIT QUESTION
Chris Bitmead ha scritto:
Only PostgreSQL 6.5
Hi,
I've an elementary question. What's wrong with the following :
dbtest= select * from testusers limit 10;
ERROR: parser: parse error at or near "10"
dbtest= select version();
version
-
PostgreSQL 6.4.2 on i586-pc-linux-gnu,
I think "limit" is new with version 6.5.
-Original Message-
From: Martin Wong [SMTP:[EMAIL PROTECTED]]
Sent: Wednesday, April 28, 1999 8:07 PM
To: [EMAIL PROTECTED]
Subject: [GENERAL] LIMIT QUESTION
Hi,
Only PostgreSQL 6.5 Beta supports LIMIT.
I've an elementary question. What's wrong with the following :
dbtest= select * from testusers limit 10;
ERROR: parser: parse error at or near "10"
dbtest= select version();
version
-
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