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Chapter 4. Performance

In the previous three chapters, you have seen how to create new databases and tables. You have also seen a variety of ways to retrieve data. Inevitably, you will run into a performance problem. At some point, PostgreSQL won't process data as quickly as you would like. This chapter should prepare you for that situation—after reading this chapter, you'll have a good understanding of how PostgreSQL executes a query and what you can do to make queries run faster.


  

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