Table of Contents
pg_available_extensions
pg_available_extension_versions
pg_backend_memory_contexts
pg_config
pg_cursors
pg_file_settings
pg_group
pg_hba_file_rules
pg_ident_file_mappings
pg_indexes
pg_locks
pg_matviews
pg_policies
pg_prepared_statements
pg_prepared_xacts
pg_publication_tables
pg_replication_origin_status
pg_replication_slots
pg_roles
pg_rules
pg_seclabels
pg_sequences
pg_settings
pg_shadow
pg_shmem_allocations
pg_stats
pg_stats_ext
pg_stats_ext_exprs
pg_tables
pg_timezone_abbrevs
pg_timezone_names
pg_user
pg_user_mappings
pg_views
pg_wait_events
In addition to the system catalogs, PostgreSQL provides a number of built-in views. Some system views provide convenient access to some commonly used queries on the system catalogs. Other views provide access to internal server state.
The information schema (Chapter 35) provides an alternative set of views which overlap the functionality of the system views. Since the information schema is SQL-standard whereas the views described here are PostgreSQL-specific, it's usually better to use the information schema if it provides all the information you need.
Table 52.1 lists the system views described here. More detailed documentation of each view follows below. There are some additional views that provide access to accumulated statistics; they are described in Table 27.2.
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.