The PostgreSQL formatting functions provide a powerful set of tools for converting various data types (date/time, integer, floating point,

The pg_available_extension_versions view lists the specific extension versions that are available for installation. See also the

The catalog pg_proc stores information about functions (or procedures). See

NameCREATE TRANSFORM -- define a new transform Synopsis

NameDROP TYPE -- remove a data type Synopsis

This section describes functions for operating on sequence objects, also called sequence generators or just sequences. Sequence objects are special

NameALTER TRIGGER -- change the definition of a trigger Synopsis

The spi module provides several workable examples of using SPI and triggers. While these functions are of some value in their own right, they

NameALTER AGGREGATE -- change the definition of an aggregate function Synopsis

The catalog pg_cast stores data type conversion paths, both built-in and user-defined. It should be noted that