This extension provides additional window functions to PostgreSQL. Some of them provide SQL Standard functionality but without the SQL Standard grammar, others extend on the SQL Standard, and still others are novel and hopefully useful to someone.

repmgr is an open-source tool suite for managing replication and failover in a cluster of PostgreSQL servers. It enhances PostgreSQL's built-in hot-standby capabilities with tools to set up standby servers, monitor replication, and perform administrative tasks such as failover or manual switchover operations.

Safe and fast serialization alternative to [JSON.stringify][].

This is an alternative to the HSL (hue, saturation, lightness) colorspace which implements the idea of specifying a color by hue, saturation and lightness in a way that is compatible with how they are perceived by humans.

icu_ext is an extension to expose functionality from ICU to PostgreSQL applications.

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.