52.1. Overview

52.1. Overview
Prev	Up	Chapter 52. System Views	Home	Next

Table 52.1 lists the system views. More detailed documentation of each catalog follows below. Except where noted, all the views described here are read-only.

Table 52.1. System Views

View Name	Purpose
`pg_available_extensions`	available extensions
`pg_available_extension_versions`	available versions of extensions
`pg_backend_memory_contexts`	backend memory contexts
`pg_config`	compile-time configuration parameters
`pg_cursors`	open cursors
`pg_file_settings`	summary of configuration file contents
`pg_group`	groups of database users
`pg_hba_file_rules`	summary of client authentication configuration file contents
`pg_ident_file_mappings`	summary of client user name mapping configuration file contents
`pg_indexes`	indexes
`pg_locks`	locks currently held or awaited
`pg_matviews`	materialized views
`pg_policies`	policies
`pg_prepared_statements`	prepared statements
`pg_prepared_xacts`	prepared transactions
`pg_publication_tables`	publications and information of their associated tables
`pg_replication_origin_status`	information about replication origins, including replication progress
`pg_replication_slots`	replication slot information
`pg_roles`	database roles
`pg_rules`	rules
`pg_seclabels`	security labels
`pg_sequences`	sequences
`pg_settings`	parameter settings
`pg_shadow`	database users
`pg_shmem_allocations`	shared memory allocations
`pg_stats`	planner statistics
`pg_stats_ext`	extended planner statistics
`pg_stats_ext_exprs`	extended planner statistics for expressions
`pg_tables`	tables
`pg_timezone_abbrevs`	time zone abbreviations
`pg_timezone_names`	time zone names
`pg_user`	database users
`pg_user_mappings`	user mappings
`pg_views`	views
`pg_wait_events`	wait events

Prev	Up	Next
Chapter 52. System Views	Home	52.2. `pg_available_extensions`