pg_catalog tables

Catalog NamePurpose
pg_aggregateaggregate functions
pg_amindex access methods
pg_amopaccess method operators
pg_amprocaccess method support procedures
pg_attrdefcolumn default values
pg_attributetable columns ("attributes")
pg_authidauthorization identifiers (roles)
pg_auth_membersauthorization identifier membership relationships
pg_autovacuumper-relation autovacuum configuration parameters
pg_castcasts (data type conversions)
pg_classtables, indexes, sequences, views ("relations")
pg_constraintcheck constraints, unique constraints, primary key constraints, foreign key constraints
pg_conversionencoding conversion information
pg_databasedatabases within this database cluster
pg_dependdependencies between database objects
pg_descriptiondescriptions or comments on database objects
pg_indexadditional index information
pg_inheritstable inheritance hierarchy
pg_languagelanguages for writing functions
pg_largeobjectlarge objects
pg_listenerasynchronous notification support
pg_namespaceschemas
pg_opclassindex access method operator classes
pg_operatoroperators
pg_pltemplatetemplate data for procedural languages
pg_procfunctions and procedures
pg_rewritequery rewrite rules
pg_shdependdependencies on shared objects
pg_shdescriptioncomments on shared objects
pg_statisticplanner statistics
pg_tablespacetablespaces within this database cluster
pg_triggertriggers
pg_typedata types
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