PostgreSQL

Chapter 11. Indexes
Prev	Up	Part II. The SQL Language	Home	Next

Chapter 11. Indexes

Table of Contents

11.1. Introduction

11.2. Index Types

11.3. Multicolumn Indexes

11.4. Indexes and ORDER BY

11.5. Combining Multiple Indexes

11.6. Unique Indexes

11.7. Indexes on Expressions

11.8. Partial Indexes

11.9. Index-Only Scans and Covering Indexes

11.10. Operator Classes and Operator Families

11.11. Indexes and Collations

11.12. Examining Index Usage

Indexes are a common way to enhance database performance. An index allows the database server to find and retrieve specific rows much faster than it could do without an index. But indexes also add overhead to the database system as a whole, so they should be used sensibly.

Prev	Up	Next
10.6. `SELECT` Output Columns	Home	11.1. Introduction

10.6. SELECT Output Columns

Home

11.1. Introduction

Submit correction

If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.