On 14 Oct 2011, at 13:58, Alexander Farber wrote:
> Hi Alban and others -
>
> On Fri, Oct 14, 2011 at 1:34 PM, Alban Hertroys wrote:
>> Anyway, I think you get the sequential scans because the UNION requires to
>> sort all the data from both tables to guarantee that the results are unique
>> (
Hi Alban and others -
On Fri, Oct 14, 2011 at 1:34 PM, Alban Hertroys wrote:
> Anyway, I think you get the sequential scans because the UNION requires to
> sort all the data from both tables to guarantee that the results are unique
> (hence that long Sort Key at the 7th line of explain output).
On 14 Oct 2011, at 11:14, Alexander Farber wrote:
> I've added 3 new indices on both tables:
>
>
> quincy=> \d quincynoreset
> Table "public.quincynoreset"
> Column|Type | Modifiers
> -+-+---
> apps
2011/10/14 Alexander Farber :
> Thank you -
>
> On Fri, Oct 14, 2011 at 11:30 AM, Pavel Stehule
> wrote:
>> you should to use a DECLARE statement
>> http://www.postgresql.org/docs/9.1/interactive/sql-declare.html
>> and fetch statement
>> http://www.postgresql.org/docs/9.1/interactive/sql-fetch.h
Thank you -
On Fri, Oct 14, 2011 at 11:30 AM, Pavel Stehule wrote:
> you should to use a DECLARE statement
> http://www.postgresql.org/docs/9.1/interactive/sql-declare.html
> and fetch statement
> http://www.postgresql.org/docs/9.1/interactive/sql-fetch.html
I've managed to create a cursor
and c
Hello
you should to use a DECLARE statement
http://www.postgresql.org/docs/9.1/interactive/sql-declare.html
and fetch statement
http://www.postgresql.org/docs/9.1/interactive/sql-fetch.html
Regards
Pavel Stehule
2011/10/14 Alexander Farber :
> I've also tried opening cursor:
>
> quincy=> op
I've also tried opening cursor:
quincy=> open ref for select to_char(qdatetime, '-MM-DD') as
QDATETIME,ID,NAME,CATEGORY,APPSVERSION,OSVERSION,DETAILS,DEVINFO from
quincyview where qdatetime <= now() order by QDATETIME desc ;
ERROR: syntax error at or near "open"
LINE 1: open ref for select to
Hello Bill and others,
On Thu, Oct 13, 2011 at 4:09 PM, Bill Moran wrote:
> In response to Alexander Farber :
>> I use PostgreSQL 8.4.7 on CentOS 6.0 / 64 bit machine
>> with Quad-Core AMD Opteron(tm) Processor 2352 and
>> 16 GB RAM and use it for 1 PHP script - which selects
>> and displays data
In response to Alexander Farber :
> Hello,
>
> I use PostgreSQL 8.4.7 on CentOS 6.0 / 64 bit machine
> with Quad-Core AMD Opteron(tm) Processor 2352 and
> 16 GB RAM and use it for 1 PHP script - which selects
> and displays data in jQuery DataTables (i.e. an
> HTML-table which can be viewed page
On Oct 13, 2011, at 9:41, Alexander Farber wrote:
>
> Does anybody please have an idea,
> how to speed up my select statements?
>
Create one or more indexes.
David J.
Hello,
I use PostgreSQL 8.4.7 on CentOS 6.0 / 64 bit machine
with Quad-Core AMD Opteron(tm) Processor 2352 and
16 GB RAM and use it for 1 PHP script - which selects
and displays data in jQuery DataTables (i.e. an
HTML-table which can be viewed page by page).
I select records from 1 view which uni
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