</blockquote>No it doesn't. Write a terribly long query that takes many seconds to run, and look at the estimated execution plan come to you almost instantaneously. It is the query optimizer doing its ...

“SQL on everything” is the tagline associated with Presto, the query engine that was initially developed by Facebook to rapidly analyze massive amounts of data — particularly data that lay scattered ...

Microsoft has just added support for query hints to Azure SQL Database, giving database administrators a powerful tool to manage the performance of ISV application code. Here's how it works. Database ...

As a consultant whose job description includes putting out performance fires, I get to see a lot of problematic queries that can dramatically harm overall server performance and throughput. Wondering ...

Query optimisation in distributed database systems addresses the challenge of selecting an efficient execution plan across multiple networked nodes. Owing to the combinatorial explosion of possible ...

A federated SQL query execution engine created at Facebook, Presto brings interactive querying to all of your data — no matter where it resides Presto! It’s not only an incantation to excite your ...