Full Text Search
  • References/Database/PostgreSQL/Full Text Search

Full Text Searching (or just text search) provides the capability to identify natural-language documents that satisfy a

2025-01-10 15:47:30
Internals//GiST Indexes: Built-in Operator Classes
  • References/Database/PostgreSQL/Internals/GiST Indexes

The core PostgreSQL distribution includes the GiST operator classes shown in Table 61-1. (Some of the optional

2025-01-10 15:47:30
Multicolumn Indexes
  • References/Database/PostgreSQL/Indexes

An index can be defined on more than one column of a table. For example, if you have a table of this form:

2025-01-10 15:47:30
pg_basebackup
  • References/Database/PostgreSQL/Applications

Namepg_basebackup -- take a base backup of a PostgreSQL cluster

2025-01-10 15:47:30
Internals//Physical Storage: Visibility Map
  • References/Database/PostgreSQL/Internals/Physical Storage

Each heap relation has a Visibility Map (VM) to keep track of which pages contain only tuples that are known to be visible to all active transactions; it also keeps track of

2025-01-10 15:47:30
Performance Tips: Controlling the Planner with Explicit JOIN Clauses
  • References/Database/PostgreSQL/Performance Tips

It is possible to control the query planner to some extent by using the explicit JOIN syntax. To see why this matters, we first need some background

2025-01-10 15:47:30
Acronyms
  • References/Database/PostgreSQL/Appendixes/Appendixes

This is a list of acronyms commonly used in the PostgreSQL documentation and in discussions about PostgreSQL

2025-01-10 15:47:30
WAL Internals
  • References/Database/PostgreSQL/Write-Ahead Log

WAL is automatically enabled; no action is required from the administrator except ensuring that the disk-space requirements for the

2025-01-10 15:47:30
Monitoring: Standard Unix Tools
  • References/Database/PostgreSQL/Monitoring

On most Unix platforms, PostgreSQL modifies its command title as reported by ps, so that individual server processes

2025-01-10 15:47:30
Catalogs: pg_timezone_abbrevs
  • References/Database/PostgreSQL/Internals: Catalogs

The view pg_timezone_abbrevs provides a list of time zone abbreviations that are currently recognized by the datetime input routines. The contents

2025-01-10 15:47:30