| autoinc | Functions for autoincrementing fields | - |
| amcheck | Functions for verifying relation integrity | - |
| bloom | Bloom access method - signature file-based index | - |
| bool_plperl | Transform between bool and plperl | - |
| btree_gin | Support for indexing common datatypes in GIN | - |
| btree_gist | Support for indexing common datatypes in GiST | - |
| citext | Data type for case-insensitive character strings | - |
| cube | Data type for multidimensional cubes | - |
| dict_int | Text search dictionary template for integers | - |
| dict_xsyn | Text search dictionary template for extended synonym processing | - |
| earthdistance | Calculate great-circle distances on the surface of the Earth | - |
| fuzzystrmatch | Determine similarities and distance between strings | - |
| hstore | Data type for storing sets of (key, value) pairs | - |
| hstore_plperl | Transform between hstore and plperl | - |
| insert_username | Functions for tracking who changed a table | - |
| intagg | Integer aggregator and enumerator (obsolete) | - |
| intarray | Functions, operators, and index support for 1-D arrays of integers | - |
| isn | Data types for international product numbering standards | - |
| jsonb_plperl | Transform between jsonb and plperl | - |
| lo | Large object maintenance | - |
| ltree | Data type for hierarchical tree-like structures | - |
| moddatetime | Functions for tracking last modification time | - |
| old_snapshot | Utilities in support of old_snapshot_threshold | - |
| pgcrypto | Cryptographic functions | - |
| pgrowlocks | Show row-level locking information | - |
| pgstattuple | Obtain tuple-level statistics | - |
| pg_freespacemap | Examine the free space map (FSM) | - |
| pg_prewarm | Prewarm relation data | - |
| pg_stat_statements | Track execution statistics of all SQL statements executed | For all services |
| pg_trgm | Text similarity measurement and index searching based on trigrams | - |
| pg_visibility | Examine the visibility map (VM) and page-level visibility info | - |
| plperl | PL/Perl procedural language | - |
| plpgsql | SQL procedural language | For all services |
| postgres_fdw | Foreign data wrappers | For all services |
| refint | Functions for implementing referential integrity (obsolete) | - |
| seg | Data type for representing line segments or floating-point intervals | - |
| sslinfo | Information about SSL certificates | - |
| tablefunc | Functions that manipulate whole tables, including crosstab | - |
| tcn | Trigger change notifications | - |
| tsm_system_rows | TABLESAMPLE method which accepts the number of rows as a limit | - |
| tsm_system_time | TABLESAMPLE method which accepts the time in milliseconds as a limit | - |
| unaccent | Text search dictionary that removes accents | - |
| uuid-ossp | Generate universally unique identifiers (UUIDs) | - |
