unaccent is a text search dictionary that removes accents (diacritic signs) from lexemes. It's a filtering dictionary, which means its output

SQL is a strongly typed language. That is, every data item has an associated data type which determines its behavior and allowed usage.

Namecreatelang -- install a PostgreSQL procedural language

NameLOAD -- load a shared library file Synopsis

NameDROP AGGREGATE -- remove an aggregate function Synopsis

NameCREATE SEQUENCE -- define a new sequence generator Synopsis

The tsearch2 module provides backwards-compatible text search functionality for applications that used tsearch2

JSON data types are for storing JSON (JavaScript Object Notation) data, as specified in RFC 7159.

The catalog pg_shseclabel stores security labels on shared database objects. Security labels can be manipulated with the

The view pg_tables provides access to useful information about each table in the database.