The pageinspect module provides functions that allow you to inspect the contents of database pages at a low level, which is useful for debugging

The isn module provides data types for the following international product numbering standards: EAN13, UPC, ISBN (books), ISMN (music), and ISSN

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

The sslinfo module provides information about the SSL certificate that the current client provided when connecting to

The pgstattuple module provides various functions to obtain tuple-level statistics. F

The pgrowlocks module provides a function to show row locking information for a specified table.

The pgcrypto module provides cryptographic functions for PostgreSQL.

The uuid-ossp module provides functions to generate universally unique identifiers (UUIDs) using one of several standard algorithms. There are

test_decoding is an example of a logical decoding output plugin. It doesn't do anything especially useful, but can serve as a starting point for

The tcn module provides a trigger function that notifies listeners of changes to any table on which it is attached. It must be used as an