MySQL :: MySQL Forums :: Optimizer & Parser

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which is better filesort or temporary?

3,634

amit bhat

06/09/2008 06:24AM

Re: which is better filesort or temporary?

2,314

KimSeong Loh

06/09/2008 06:22PM

Re: which is better filesort or temporary?

2,311

amit bhat

06/13/2008 03:55AM

Re: which is better filesort or temporary?

2,156

Rick James

09/26/2008 11:50PM

Automatic creation and inserting to a new table = database or application level?

3,532

Eddie Jr. Panes

07/23/2008 08:02AM

Re: Automatic creation and inserting to a new table = database or application level?

2,194

Rick James

09/26/2008 11:47PM

inner join on range criteria: unable to use index?

10,205

Joseph Fisk

08/11/2008 04:34PM

Re: inner join on range criteria: unable to use index?

3,647

Joseph Fisk

08/12/2008 12:52PM

Re: inner join on range criteria: unable to use index?

2,987

Rick James

09/26/2008 11:38PM

Re: inner join on range criteria: unable to use index?

3,618

KimSeong Loh

08/11/2008 05:56PM

Re: inner join on range criteria: unable to use index?

3,681

Joseph Fisk

08/11/2008 06:04PM

Re: inner join on range criteria: unable to use index?

3,505

KimSeong Loh

08/12/2008 01:38AM

Re: inner join on range criteria: unable to use index?

3,168

Joseph Fisk

08/12/2008 09:30AM

Re: inner join on range criteria: unable to use index?

3,113

KimSeong Loh

08/12/2008 07:11PM

Aplication running clow

3,964

Agus Himalaya

08/28/2008 09:17PM

Re: Aplication running clow

2,201

Rick James

09/26/2008 11:22PM

QUERY OPTIMIZATION FOR UNION ALL IN MYSQL 4.1.22

8,791

aswini nayak

09/03/2008 03:30AM

Re: QUERY OPTIMIZATION FOR UNION ALL IN MYSQL 4.1.22

2,713

Rick James

09/26/2008 11:20PM

Question about EXPLAIN output

3,260

eli cohen

09/19/2008 02:47PM

Re: Question about EXPLAIN output

2,117

KimSeong Loh

09/19/2008 09:40PM

java.sql.SQLException: maxBlockcount [5] reached!

3,042

Holger Thiel

09/15/2008 02:52AM

Please help? another newbie substring problem

3,339

Gregg Rene

09/10/2008 09:52AM

Re: Please help? another newbie substring problem

2,074

KimSeong Loh

09/11/2008 06:06PM

UNIONs faster than simple joins

12,448

Michael B Allen

09/04/2008 10:12AM

Re: UNIONs faster than simple ORs

2,985

Rick James

09/06/2008 10:44PM

Re: UNIONs faster than simple ORs

3,159

Michael B Allen

09/09/2008 12:16PM

Optimize a query fetching huge data

6,063

Radhika Mehta

04/16/2008 01:21AM

Re: Optimize a query fetching huge data

2,905

Rick James

09/01/2008 12:02AM

Re: Optimize a query fetching huge data

2,766

Anil Pathak

07/22/2008 03:33AM

single sweep multi join in combination with where

5,640

Mert Sonsuz

07/27/2008 07:03AM

Re: single sweep multi join in combination with where

2,272

Rick James

08/31/2008 11:57PM

Using Filesort and Temporary... Help?

3,488

Adam Bratt

08/28/2008 12:36AM

Re: Using Filesort and Temporary... Help?

2,410

Rick James

08/31/2008 11:52PM

long time processing long query

6,159

Some One

05/22/2008 12:52PM

Re: long time processing long query

2,606

Some One

05/25/2008 08:09AM

Re: long time processing long query

2,326

Rick James

08/31/2008 11:44PM

Please help me optimize this query

3,018

Robert Kern

07/28/2008 05:23PM

Re: Please help me optimize this query

1,993

Rick James

08/31/2008 11:40PM

Query - delay 20 segs

4,832

Ricardo Takemura

08/04/2008 06:25AM

Re: Query - delay 20 segs

2,399

Rick James

08/31/2008 11:31PM

Re: Query - delay 20 segs

2,422

Ricardo Takemura

08/04/2008 06:26AM

index selection

6,272

Jordi Prats

08/07/2008 06:01AM

Re: index selection

2,532

KimSeong Loh

08/07/2008 07:07PM

Re: index selection

2,574

Shlomi Noach

08/30/2008 11:48AM

Re: index selection

2,401

Rick James

08/31/2008 11:16PM

Prevent DISTINCT from using temporary tables

13,157

Eric Lyons

08/25/2008 09:07PM

Re: Prevent DISTINCT from using temporary tables

6,617

Shlomi Noach

08/30/2008 11:42AM

Adding current entry to previous with join

3,597

Kevin Regan

07/29/2008 06:50PM

Re: Adding current entry to previous with join

2,204

KimSeong Loh

07/29/2008 07:31PM

Re: Adding current entry to previous with join

2,135

Kevin Regan

07/30/2008 01:05AM

log-queries-not-using-indexes and "Using index" in the Extra col of Explain

4,656

MFTree MFTree

07/28/2008 01:10PM

Jabar Query

2,930

zain alam

07/16/2008 12:01AM

Query long time

3,562

Sahid Ferdjaoui

07/08/2008 02:25AM

Re: Query long time

2,217

KimSeong Loh

07/08/2008 04:33AM

Re: Query long time

2,254

Sahid Ferdjaoui

07/08/2008 05:39AM

substr, update, index wont like each other

7,883

Pavan Kumar

05/15/2008 12:58PM

Re: substr, update, index wont like each other

2,908

Lars Johansson

05/17/2008 10:56PM

what's the use of mysql optimizer_search_depth

5,585

Gavin Zhang

05/12/2008 01:24AM

Re: what's the use of mysql optimizer_search_depth

2,985

KimSeong Loh

05/12/2008 03:02AM

Re: what's the use of mysql optimizer_search_depth

2,792

Gavin Zhang

05/12/2008 01:25AM

Optimized join - is CONCAT optimized ?

4,341

S F

05/12/2008 02:50AM

Re: Optimized join - is CONCAT optimized ?

2,391

KimSeong Loh

05/12/2008 03:02AM

is index have expired time?

3,641

Alpha Centauri

05/05/2008 11:19AM

Re: is index have expired time?

2,263

Alpha Centauri

05/09/2008 12:24PM

Re: is index have expired time?

2,240

KimSeong Loh

05/09/2008 05:01PM

Como aumento el maximo de conusltas permitidas de mysql?

3,026

Luis Ernesto Castillo

05/05/2008 11:18AM

query cache & Using temporary

3,976

Tsvetomir Denev

05/02/2008 09:51AM

Re: query cache & Using temporary

2,488

Tsvetomir Denev

05/02/2008 03:35PM

This is strange

3,456

brian clarke

01/29/2008 05:27AM

Re: This is strange

2,241

hieu ngoc

04/04/2008 12:35AM

How to optimize an ORDER BY query using a range to avoid any filesorts

12,226

Faury Rodriguez

10/14/2007 12:57PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

3,761

sukh gill

03/28/2008 10:57PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

7,312

KimSeong Loh

10/14/2007 05:44PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

5,142

Faury Rodriguez

10/14/2007 11:21PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

4,934

KimSeong Loh

10/15/2007 02:18AM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

4,686

Faury Rodriguez

10/15/2007 03:44AM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

4,531

KimSeong Loh

10/15/2007 04:22PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

4,523

Faury Rodriguez

10/24/2007 02:27PM

Re: How to optimize an ORDER BY query using a range to avoid any filesorts

4,283

KimSeong Loh

10/24/2007 04:35PM

Profiler not present in MySql 5.0.56-log ?

4,020

Benjamin Fonze

03/28/2008 07:34AM

The 7 seconds query

3,318

Tobias Marx

03/24/2008 05:50AM

Re: The 7 seconds query

2,297

Tobias Marx

03/24/2008 06:20AM

find next lowest value in lookup table?

6,015

Matthias Fripp

03/21/2008 06:03PM

Flush

5,750

Wayne Lee

03/18/2008 02:19AM

Re: Flush

2,438

KimSeong Loh

03/18/2008 04:15PM

Please help to optimize slow running query

3,526

sus moh

03/07/2008 12:40AM

Re: Please help to optimize slow running query

2,414

Björn Steinbrink

03/16/2008 06:31AM

Indexes and bit functions?

2,975

Victor Svetogor

03/14/2008 03:08AM

Query not returning all rows.. system Variables

5,030

Anna Sobiepanek

03/12/2008 09:29AM

Re: Query not returning all rows.. system Variables

2,408

Anna Sobiepanek

03/12/2008 12:12PM

performence monitor and analyzing tool

3,662

Dan Echo

01/13/2008 06:06PM

Re: performence monitor and analyzing tool

2,315

Marek Podmaka

03/12/2008 09:57AM

Another question about index's

3,178

Daniel Silva

01/05/2008 06:35PM

Re: Another question about index's

2,201

Marek Podmaka

03/12/2008 09:55AM

Searching for a user across two tables taking 23 seconds

3,418

Tom Beharrell

11/05/2007 04:24PM

Re: Searching for a user across two tables taking 23 seconds

2,189

Marek Podmaka

03/12/2008 09:49AM

performance issue on simple table access via primary key

3,658

Maggie Pong

12/11/2007 12:42AM

Re: performance issue on simple table access via primary key

2,372

Marek Podmaka

03/12/2008 09:44AM

Problem using LIKE with FORCE INDEX...

8,075

Jonathan Segura Castro

02/04/2008 11:02AM

Re: Problem using LIKE with FORCE INDEX...

4,217

Faury Rodriguez

02/04/2008 05:08PM

Re: Problem using LIKE with FORCE INDEX...

3,572

Chaitanya Jakhadi

02/06/2008 02:34AM

Re: Problem using LIKE with FORCE INDEX...

3,442

KimSeong Loh

02/13/2008 01:19AM

Re: Problem using LIKE with FORCE INDEX...

3,409

Marek Podmaka

03/12/2008 09:40AM

Many Table Scanned instead of One table.

3,364

Don Thompson

02/15/2008 10:36AM

Re: Many Table Scanned instead of One table.

2,206

Marek Podmaka

03/12/2008 09:37AM

selects with multiple categories

3,970

Marek Podmaka

03/12/2008 09:28AM

Help Optimizing Query

3,587

Matt Clements

02/15/2008 06:52PM

Re: Help Optimizing Query

2,285

e h

02/21/2008 07:50PM

Re: Help Optimizing Query

2,342

Ryan Lowe

02/17/2008 09:13PM

How to optimize this query?

3,289

Andrea Buccella

02/18/2008 05:46AM

Double COUNT & Double LEFT JOIN

16,079

Olexandr Novosad

06/01/2007 04:56AM

Re: Clustring

3,358

zafar hussain

02/13/2008 05:14AM

Query optimization on INSERT ... SELECT ... SUBSTR

11,080

Jess Mann

01/25/2008 12:29PM

Re: Query optimization on INSERT ... SELECT ... SUBSTR

3,255

Björn Steinbrink

02/11/2008 12:03AM

Re: Query optimization on INSERT ... SELECT ... SUBSTR

3,171

Jess Mann

02/09/2008 05:25PM

Static (non correlated) sub-query instead of a join

5,983

Dewey Gaedcke

01/12/2008 08:43AM

Re: Static (non correlated) sub-query instead of a join

2,683

Dewey Gaedcke

01/14/2008 04:15PM

is there a way to block backup privileges

3,345

Raymond Davis

12/27/2007 10:40AM

Re: is there a way to block backup privileges

2,210

Ryan Lowe

01/10/2008 10:46AM

45 million row table - Two BETWEENs not using a composite index optimally

5,156

Tasman Hayes

08/06/2007 12:42AM

Re: 45 million row table - Two BETWEENs not using a composite index optimally

2,572

wes mahler

12/22/2007 10:54AM

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