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54.1. Overview

Table 54.1 lists the system views. More detailed documentation of each catalog follows below. Except where noted, all the views described here are read-only.

Table 54.1. 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

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Chapter 54. System Views

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54.2. pg_available_extensions

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