The tsm_system_rows module provides the table sampling method SYSTEM_ROWS, which can be used in the

auth_delay causes the server to pause briefly before reporting authentication failure, to make brute-force attacks on database passwords more

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

The intarray module provides a number of useful functions and operators for manipulating null-free arrays of integers. There is also support for

This module implements the hstore data type for storing sets of key/value pairs within a single PostgreSQL value

The pg_visibility module provides a means for examining the visibility map (VM) and page-level visibility information. It also provides functions

Table C-1 lists all tokens that are key words in the SQL standard and in PostgreSQL 9.6.0. Background information can be found in Section 4

dict_int is an example of an add-on dictionary template for full-text search. The motivation for this example dictionary is to control the indexing

The earthdistance module provides two different approaches to calculating great circle distances on the surface of the Earth. The one described

This module implements a data type chkpass that is designed for storing encrypted passwords. Each password is automatically converted to encrypted