PostgreSQL available extensions in the community edition.
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postgreshelp=# select name, comment from pg_available_extensions ; name | comment --------------------+---------------------------------------------------------------------- plpgsql | PL/pgSQL procedural language add_ten_1 | Add ten to given number Nvlfunc | Oracle compatible nvl function cube | data type for multidimensional cubes nvlfunc | Oracle compatible nvl function file_fdw | foreign-data wrapper for flat file access btree_gist | support for indexing common datatypes in GiST fuzzystrmatch | determine similarities and distance between strings add_ten | Accept two values and add them pgstattuple | show tuple-level statistics plperl | PL/Perl procedural language pg_trgm | text similarity measurement and index searching based on trigrams btree_gin | support for indexing common datatypes in GIN pg_buffercache | examine the shared buffer cache intarray | functions, operators, and index support for 1-D arrays of integers pltclu | PL/TclU untrusted procedural language sslinfo | information about SSL certificates chkpass | data type for auto-encrypted passwords intagg | integer aggregator and enumerator (obsolete) seg | data type for representing line segments or floating-point intervals ltree_plpythonu | transform between ltree and plpythonu repmgr | Replication manager for PostgreSQL dblink | connect to other PostgreSQL databases from within a database timetravel | functions for implementing time travel amcheck | functions for verifying relation integrity plpythonu | PL/PythonU untrusted procedural language ltree | data type for hierarchical tree-like structures hstore_plpythonu | transform between hstore and plpythonu pageinspect | inspect the contents of database pages at a low level dict_xsyn | text search dictionary template for extended synonym processing autoinc | functions for autoincrementing fields prog | Demo Extension for Postgres Conference pgcrypto | cryptographic functions uuid-ossp | generate universally unique identifiers (UUIDs) citext | data type for case-insensitive character strings hstore_plperlu | transform between hstore and plperlu postgres_fdw | foreign-data wrapper for remote PostgreSQL servers bloom | bloom access method - signature file based index tablefunc | functions that manipulate whole tables, including crosstab tsm_system_time | TABLESAMPLE method which accepts time in milliseconds as a limit hstore | data type for storing sets of (key, value) pairs pgrowlocks | show row-level locking information insert_username | functions for tracking who changed a table pg_prewarm | prewarm relation data pltcl | PL/Tcl procedural language refint | functions for implementing referential integrity hstore_plpython2u | transform between hstore and plpython2u moddatetime | functions for tracking last modification time isn | data types for international product numbering standards add_cfun | add cfun plpython2u | PL/Python2U untrusted procedural language tcn | Triggered change notifications dict_int | text search dictionary template for integers lo | Large Object maintenance unaccent | text search dictionary that removes accents plperlu | PL/PerlU untrusted procedural language ltree_plpython2u | transform between ltree and plpython2u tsm_system_rows | TABLESAMPLE method which accepts number of rows as a limit demo | Demo Extension for Postgres Conference pg_freespacemap | examine the free space map (FSM) pg_stat_statements | track execution statistics of all SQL statements executed sum_fn | sum of two numbers earthdistance | calculate great-circle distances on the surface of the Earth adminpack | administrative functions for PostgreSQL pg_visibility | examine the visibility map (VM) and page-level visibility info hstore_plperl | transform between hstore and plperl xml2 | XPath querying and XSLT (67 rows) |
