MySQL :: MySQL Forums :: Optimizer & Parser

New Topic

Pages:

1 2 3 4 5

...

19 »

Subject

Views

Written By

Posted

Sticky: MySQL 8.0: Hash Join and EXPLAIN ANALYZE (1 Posts)

520

Edwin Desouza

10/01/2019 05:40PM

Sticky: MySQL 8.0: One Giant Leap For SQL (1 Posts)

866

Edwin Desouza

04/25/2018 10:16AM

Sticky: Unofficial MySQL 8.0 Optimizer Guide (1 Posts)

1,163

Edwin Desouza

02/13/2017 04:16PM

Sticky: MySQL 8.0: Window Functions (1 Posts)

1,024

Edwin Desouza

02/04/2017 08:57PM

Sticky: MySQL 8.0: CTEs (1 Posts)

1,437

Edwin Desouza

10/18/2016 09:38AM

Sticky: MySQL 8.0: Optimizer & Parser (1 Posts)

1,556

Edwin Desouza

09/13/2016 10:54AM

Sticky: MySQL Performance Tuning (1 Posts)

2,183

Edwin Desouza

07/06/2015 10:37AM

Sticky: MySQL Parser (1 Posts)

3,140

Edwin Desouza

04/03/2014 03:31PM

Sticky: MySQL Optimizer: Features in MySQL 5.7 (1 Posts)

4,336

Edwin Desouza

12/18/2012 11:38AM

Sticky: MySQL EXPLAIN (1 Posts)

4,808

Edwin Desouza

07/10/2012 10:32AM

Sticky: MySQL Optimizer: Blogs (1 Posts)

10,613

Edwin DeSouza

04/28/2007 06:20PM

Need help with getting rid of filesort

Marvin Herbold

06/23/2022 01:53PM

Re: Need help with getting rid of filesort

Peter Brawley

06/24/2022 09:59AM

Startup was very slow

426

Charles Rodrigues Rimiru

01/27/2022 07:53AM

Re: Startup was very slow

Peter Brawley

02/28/2022 11:14AM

Re: Startup was very slow

Charles Rodrigues Rimiru

03/02/2022 08:58AM

Re: Startup was very slow

Peter Brawley

03/02/2022 10:58AM

Re: Startup was very slow

Charles Rodrigues Rimiru

03/02/2022 01:57PM

MySQL 8.0 EXPLAIN ANALYZE

Edwin Desouza

02/27/2022 10:37PM

Optimizer in 8.0 in some cases not materializing subquery

258

Benjamin Peikes

01/24/2022 03:37PM

Re: Optimizer in 8.0 in some cases not materializing subquery

Peter Brawley

01/24/2022 04:45PM

Running sql in server is too much slower then laptop

248

Shanxiang MAO

10/25/2021 02:49AM

Re: Running sql in server is too much slower then laptop

Peter Brawley

10/25/2021 09:50AM

Re: Running sql in server is too much slower then laptop

Herems Jing

11/13/2021 07:59PM

Re: Running sql in server is too much slower then laptop

Peter Brawley

11/13/2021 09:21PM

Query optimization on LIKE

179

Sing Lau

10/04/2021 12:08PM

Re: Query optimization on LIKE

111

Peter Brawley

10/04/2021 01:08PM

Multi-valued index is not in possible keys when there is a subquery

212

Jinlin Yang

07/22/2021 07:18PM

Re: Multi-valued index is not in possible keys when there is a subquery

Peter Brawley

10/04/2021 12:55PM

Run ANALYZE TABLE — Do Not Rely on InnoDB's Automatic Recalculation of Statistics

250

Edwin Desouza

09/08/2021 09:52AM

MySQL: EXPLAINing the Different EXPLAINS

227

Edwin Desouza

08/19/2021 02:57PM

Disable caching in MYSQL for True performance testings?

332

Sing Lau

07/11/2021 02:47PM

Re: Disable caching in MYSQL for True performance testings?

145

Peter Brawley

07/11/2021 05:21PM

Documentation regarding operator precedence incorrect for LIKE, REGEXP, IN?

229

Justin Ng

06/12/2021 01:29PM

How to optimizate COUNT query with multiple LEFT JOIN

246

Ivan Stoqnov

06/01/2021 01:19AM

Re: How to optimizate COUNT query with multiple LEFT JOIN

123

Ivan Stoqnov

06/01/2021 01:31AM

Re: How to optimizate COUNT query with multiple LEFT JOIN

121

Peter Brawley

06/01/2021 12:19PM

Need help with tracing how identifiers are parsed; dot-reserved vs dot-space-reserved

242

Justin Ng

05/25/2021 05:28AM

Re: Need help with tracing how identifiers are parsed; dot-reserved vs dot-space-reserved

110

Justin Ng

05/25/2021 06:21AM

MySQL Invisible Column

323

Edwin Desouza

01/22/2021 01:48PM

mySQL 8 - view query not using outer predicate

378

Jack Crawford

01/11/2021 10:49AM

Re: mySQL 8 - view query not using outer predicate

172

Peter Brawley

01/11/2021 12:07PM

Re: mySQL 8 - view query not using outer predicate

199

Jack Crawford

01/11/2021 12:18PM

Re: mySQL 8 - view query not using outer predicate

177

Peter Brawley

01/11/2021 01:38PM

Re: mySQL 8 - view query not using outer predicate

168

Jack Crawford

01/11/2021 02:06PM

Re: mySQL 8 - view query not using outer predicate

166

Peter Brawley

01/11/2021 03:02PM

Re: mySQL 8 - view query not using outer predicate

173

Jack Crawford

01/11/2021 04:04PM

Re: mySQL 8 - view query not using outer predicate

190

Peter Brawley

01/11/2021 10:34PM

MySQL Comparing INTs and CHARs

334

Edwin Desouza

08/24/2020 02:56PM

MySQL 8.0 Indexes, Histograms, and Other Ways to Speed Up Your Queries

346

Edwin Desouza

08/04/2020 07:57PM

MySQL: Using SKIP LOCK For Queue Processing

516

Edwin Desouza

08/03/2020 10:00AM

MySQL 8.0: Modern approaches to replacing accumulation user-defined variable hacks, via Window functions and CTEs

392

Saverio Miroddi

06/16/2020 10:00AM

MySQL 8.0.20: Index-Level Optimizer Hints

410

Edwin Desouza

04/28/2020 09:04AM

Explain features

495

Michael Bialik

03/29/2020 01:29PM

Re: Explain features

258

Peter Brawley

03/29/2020 02:01PM

MySQL 8.0: using CTEs to generate Sequences/Ranges

391

Edwin Desouza

03/09/2020 01:23PM

MySQL 8.0: A must-know about NOT IN in SQL – more antijoin optimization

471

Edwin Desouza

02/28/2020 11:12AM

msqldump only one row per minute from a 5 row/minute database

428

Adrian C

02/22/2020 12:38PM

Re: msqldump only one row per minute from a 5 row/minute database

247

Peter Brawley

02/22/2020 01:46PM

MySQL 8.0: EXPLAIN ANALYZE

420

Edwin Desouza

02/14/2020 11:29PM

Explain command type "All" issue

460

Vipin PA

02/14/2020 03:20AM

Re: Explain command type "All" issue

252

Peter Brawley

02/14/2020 10:28AM

Re: Explain command type "All" issue

255

Edwin Desouza

02/14/2020 05:52PM

Introduction to MySQL 8.0 CTEs (Part 1+2)

468

Edwin Desouza

02/13/2020 12:02PM

MySQL 8.0: Hash Join

375

Edwin Desouza

02/09/2020 05:09PM

MySQL 8.0: Simple way to figure out why your recursive CTE is running away

394

Edwin Desouza

01/15/2020 06:06AM

optimizer seems to skip stored function call in where clause?

480

John LeSueur

01/08/2020 11:07AM

Re: optimizer seems to skip stored function call in where clause?

318

John LeSueur

01/08/2020 11:21AM

Re: optimizer seems to skip stored function call in where clause?

206

John LeSueur

01/08/2020 11:44AM

Re: optimizer seems to skip stored function call in where clause?

312

Peter Brawley

01/08/2020 01:11PM

MySQL 8.0: AntiJoin

454

Edwin Desouza

12/18/2019 07:54AM

MySQL 8.0: Hash Join

513

Edwin Desouza

11/13/2019 12:36PM

MySQL 8.0: Understanding Hash Joins

447

Edwin Desouza

10/30/2019 11:06AM

Explain Analyze in MySQL 8

484

Edwin Desouza

10/28/2019 05:00PM

optimizing searches using aggregate data in join

655

Matthew Lenz

10/21/2019 09:05AM

Re: optimizing searches using aggregate data in join

266

Peter Brawley

10/21/2019 11:37AM

MySQL 8.0: EXPLAIN ANALYZE

531

Edwin Desouza

10/17/2019 07:15AM

MySQL 8.0.18 Maintenance Release is Generally Available

541

Edwin Desouza

10/14/2019 01:06PM

Slow Query

881

Deepak Nirmul

06/21/2019 04:47AM

Re: Slow Query

384

Peter Brawley

06/21/2019 10:17AM

Re: Slow Query

369

Deepak Nirmul

06/24/2019 02:18AM

Re: Slow Query

323

Peter Brawley

06/24/2019 09:56AM

Re: Slow Query

331

Deepak Nirmul

06/24/2019 10:15AM

Re: Slow Query

361

Peter Brawley

06/24/2019 10:45AM

Re: Slow Query

336

Gopal venkat

09/04/2019 11:47AM

Gopal, please don't hijack threads

300

Peter Brawley

09/04/2019 02:32PM

Re: Slow Query

291

marimuthu B

09/06/2019 05:59AM

Re: Slow Query

353

Peter Brawley

09/06/2019 09:57AM

MySQL 8.0: Supporting all kinds of outer references in derived tables (lateral, or not)

474

Edwin Desouza

07/12/2019 11:13AM

setting an index for speed

609

Michael Peters

07/02/2019 04:56AM

Re: setting an index for speed

325

Peter Brawley

07/02/2019 12:29PM

Query optimization and indexing - Help needed

700

Pandit P

06/13/2019 06:41AM

Re: Query optimization and indexing - Help needed

322

Peter Brawley

06/13/2019 12:55PM

Re: Query optimization and indexing - Help needed

311

Pandit P

06/14/2019 12:01AM

Re: Query optimization and indexing - Help needed

333

Peter Brawley

06/14/2019 07:51AM

Is the query order guaranteed using Btree indexes and no ORDER BY

710

Ted Johnson

05/29/2019 02:12PM

Re: Is the query order guaranteed using Btree indexes and no ORDER BY

325

Peter Brawley

05/29/2019 03:00PM

Re: Is the query order guaranteed using Btree indexes and no ORDER BY

311

Ted Johnson

05/29/2019 04:41PM

CHECK constraints in MySQL

634

Edwin Desouza

05/14/2019 09:37AM

MySQL 8.0: Removal of implicit and explicit sorting for GROUP BY

591

Edwin Desouza

04/10/2019 09:14AM

Comparing two columns on big table

1,249

Krzysztof Wróblewski

03/21/2019 03:24PM

Re: Comparing two columns on big table

451

Peter Brawley

03/21/2019 04:24PM

help with this query

610

sha fendi

03/16/2019 09:17PM

Re: help with this query

354

Peter Brawley

03/17/2019 11:04AM

MySQL Functional Indexes

522

Edwin Desouza

03/14/2019 09:49AM

MySQL 8.0: Query analytics [CTEs, Window Functions]

536

Edwin Desouza

03/09/2019 11:04PM

MySQL 8.0: Improvements to ROLLUP

537

Edwin Desouza

03/05/2019 11:53AM

MySQL 8.0: Window Functions for JSON

525

Edwin Desouza

02/21/2019 11:08AM

This topic has been moved.: optimizing searches using aggregate data in join

Matthew Lenz

10/21/2019 11:06AM

This topic has been moved.: setting an index for speed

Michael Peters

07/02/2019 12:26PM

This topic has been moved.: Slow Query

Deepak Nirmul

06/21/2019 10:18AM

This topic has been moved.: help with this query

sha fendi

03/17/2019 11:05AM

Pages:

1 2 3 4 5

...

19 »

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.