Teaser For the Percona Live London 2014 Tutorial: "Query Optimization with MySQL 5.7 and MariaDB 10: even newer tricks" by DBAHire.com
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This is just a 9-slide teaser of the real tutorial slides that will be presented on Percona Live London 2014: https://www.percona.com/live/london-2014/sessions/query-optimization-mysql-57-and-mariadb-10-even-newer-tricks
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Teaser For the Percona Live London 2014 Tutorial: "Query Optimization with MySQL 5.7 and MariaDB 10: even newer tricks" by DBAHire.com
- 1. DBAHire.com Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks © 2014 DBAHIRE.COM Percona Live London 2014 dbahire.com/pluk14 1
- 2. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks © 2014 DBAHIRE.COM Agenda - 3 hours 2 1. Introduction 8. Subquery Optimization 2. Break (VM installation) 9. Fulltext Search 3. General Optimizer Improvements 10. GIS Improvements 4. Computed/Virtual Columns 11. Break 5. Query Rewrite Plugins 12. Query Profiling 6. SQL Mode Changes 13. Results and Conclusions 7. JOIN Optimization 14. Q&A
- 3. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks INTRODUCTION © 2014 DBAHIRE.COM 3
- 4. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks This is Me Fighting Bad Query Performance © 2014 DBAHIRE.COM • MySQL Consultant at DBAHire.com • Used to work for Oracle (MySQL), Percona • Loves MySQL query optimization and HA 4
- 5. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks © 2014 DBAHIRE.COM MySQL Versions • Oracle MySQL 5.6 (GA) almost 2 years old • MariaDB 10 over 7 months old • Several lab/alpha releases of MySQL 5.7 and MariaDB 10.1 with great new features – We will focus only on SQL-related ones – We will not perform formal benchmarks or comparisons 5
- 6. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks New Query Optimization Features • Index Condition Pushdown • Subquery Optimizations (materialization and semijoin) • IN-to-EXISTS • JOIN-to-WHERE • Multi-Range Read • Batched Key Access • Persistent InnoDB Statistics • EXPLAIN FORMAT=JSON • EXPLAIN INSERT/UPDATE/DELETE • Hash Join • New cost-based optimizer • Optimizer Trace • Filesort with a short LIMIT © 2014 DBAHIRE.COM • EXISTS-to-IN • EXPLAIN FOR CONNECTION • Faster eq_ref • Extended secondary keys • Histograms • Improved Spatial Indexes (GIS) • Histograms • Virtual columns • PERFORMANCE_SCHEMA improvements • Forced strict SQL mode; functional dependencies in GROUP BY • Query rewrite plugin • Configurable optimizer_search_depth 6
- 7. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks I Already Mentioned Some of Those Topics © 2014 DBAHIRE.COM One Year Ago • Check my presentation here: http://www.slideshare.net/jynus/query-optimization56 7
- 8. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks © 2014 DBAHIRE.COM Example Application • OSM Database is licensed under the Open DataBase License and is Copyright OpenStreetMap Contributors 8
- 9. Query Optimization With MySQL 5.7 and MariaDB 10: Even Newer Tricks 100+ slides at Percona Live London 2014 © 2014 DBAHIRE.COM You still have time to attend Percona Live London 2014 and my tutorial on Query Optimization Go to http://www.percona.com/ live/london-2014/ and register for tutorial day! 9