The GIN interface has a high level of abstraction, requiring the access method implementer only to implement the semantics of the data type

NameCREATE OPERATOR FAMILY -- define a new operator family Synopsis

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

PostgreSQL implements table inheritance, which can be a useful tool for database designers. (SQL:1999 and later define a type inheritance feature

When using an external authentication system such as Ident or GSSAPI, the name of the operating system user that initiated the connection might not be the same as the database

The catalog pg_collation describes the available collations, which are essentially mappings from an SQL name to operating system locale categories

Before we proceed, you should understand the basic PostgreSQL system architecture. Understanding how the parts of PostgreSQL

The view pg_config describes the compile-time configuration parameters of the currently installed version of PostgreSQL

NameALTER OPERATOR -- change the definition of an operator Synopsis

Authentication failures and related problems generally manifest themselves through error messages like the following: