Sergey Petrunia
Lead Software Engineer, MySQL

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Sergey Petrunia is a member of MySQL Query Optimizer team. He has implemented query optimizer features like index_merge access, partition pruning, semi-join subquery optimizations, and numerous smaller improvements.

Sessions

Sergey Petrunia (MySQL)
Average rating: **...
(2.75, 4 ratings)
This is a query optimization troubleshooting roadmap, presented by one of the MySQL optimizer developers. First, we'll give an overview of available query execution strategies and how they are (or aren't) shown in the EXPLAIN output. Second, we'll show how one can find out what the optimizer got wrong. Third, we'll discuss what means one can use to make the optimizer pick the right query plan. Read more.

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O'Reilly Media MySQL/Sun Microsystems
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  • Calpont
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  • Facebook
  • HiT Software, Inc.
  • IBM
  • iDashboards
  • Oracle
  • Pentaho
  • R1Soft
  • Schooner Information Technology
  • SQLstream
  • Ticketmaster
  • Zmanda, Inc.
  • Linux Journal

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