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by: Pedro Alves |
last post by:
Hi. I'm having some trouble on the use of indexes.
The querys below are exactly the same but refer to different months.
One case uses indexes, the other doesn't.
Is there anything I can do? Increasing index mem size?
Query 2 hash 9105 entries matching the given conditions
Query 2 hash 9248 entries matching the given conditions
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by: George Essig |
last post by:
I have installed tsearch2 and have noticed that the gist index used to do searches grows and grows
as I update rows, delete rows, or run VACUUM FULL ANALYZE. Below are some details:
PostgreSQL 7.4RC1
Red Hat 9
Table "public.series"
Column | Type | Modifiers
---------------+-------------------+--------------------------------------------------------
id | integer | not null...
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by: Hervé Piedvache |
last post by:
Hi,
I have may be a stupid question, but I'm a little surprised with some explains
I have, using date fields ...
I would like to understand exactly when index are used ...
I'm using PostgresQL 7.4.1
I have a table with 351 000 records.
I have about 300 to 600 new records by day
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by: mike |
last post by:
Hey all,
I'm using PostgreSQL 7.3.4.
I have a query that isn't using a particular index, and I'm wondering why.
The query is:
select i.ItemID, d.Extension from ITEM i, SHARING s, DOCUMENT d where
i.ItemID = d.ItemID AND s.ItemID = i.DomainID AND s.UserIDOfSharee = 12
|
by: Peter Lindquist |
last post by:
I had a fun issue this morning, and now I'm wondering if I violated a
rule I didn't know about. Any insight would be much appreciated. All
operations involving this particular table may be assumed to have
functioned normally before today.
bash-2.05a$ cat PG_VERSION
7.3
Last night, we added 'index_t_payment_param' to this table. payment_id
is not a unique entry, hence the composite primary key, and I've since
|
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by: Henrik Steffen |
last post by:
hello all,
on my master-db-server i'm running postgres 7.4.1,
and I have got two slave-servers running postgres 7.4.2
running the following query on the master-server (7.4.1) delivers:
explain analyze select * from foo where bar like '0101%' and foobar like
'top%';
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by: Dan Ruthers |
last post by:
Hi, I have read in this list and elsewhere the problem with indexes and big int.
Still, I have an index that is used or not, depending of the parameter value used in the query.
I am using PostgreSQL 7.4.3 on Linux RH ES3.
Here's the table:
test=> \d dmaildatum
Table "public.dmaildatum"
Column | Type | Modifiers
----------------+-----------------------------+-----------
id | bigint ...
|
by: Miquel van Smoorenburg |
last post by:
I have a database with a btree index on the 'removed' field,
which is of type 'date'. However it isn't being used:
techdb2=> explain select * from lines where removed > CURRENT_DATE;
QUERY PLAN
------------------------------------------------------------
Seq Scan on lines (cost=0.00..243.47 rows=2189 width=324)
Filter: (removed > ('now'::text)::date)
(2 rows)
|
by: Brian Blais |
last post by:
Hello,
I am just learning Python, and my first somewhat significant project is now available at
http://web.bryant.edu/~bblais/python/vac.tgz
What is it?
Vacuum World is a simple simulation environment used to introduce some concepts in
Artificial Intelligence (Norvig, 2002), but can also be used as a simple introduction
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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