PGConf.de 2025 is the next iteration of the PostgreSQL Conference Germany. It takes place in the "Berlin Marriott Hotel" in ...

Devart, a recognized vendor of world-class data connectivity solutions for various data connection technologies and frameworks, released an updated version ...

The CERN PGDay builds on the experience of past PostgreSQL events at CERN and a newly establish collaboration with SwissPUG.

This release contains a few fixes from 17.1. For information about new features in major release 17, see Section E.3.

pg_restore — restore a PostgreSQL database from an archive file created by pg_dump Restore only the data, not the schema (data definitions). Table data, large objects, and sequence values are restored ...

RETURN with an expression terminates the function and returns the value of expression to the caller. This form is used for PL/pgSQL functions that do not return a set. In a function that returns a ...

As we saw in the previous section, the query planner needs to estimate the number of rows retrieved by a query in order to make good choices of query plans. This section provides a quick look at the ...

The first time a user-defined function in a particular loadable object file is called in a session, the dynamic loader loads that object file into memory so that the function can be called. The CREATE ...

CREATE FUNCTION defines a new function. CREATE OR REPLACE FUNCTION will either create a new function, or replace an existing definition. To be able to define a function, the user must have the USAGE ...

CREATE SUBSCRIPTION adds a new subscription for the current database. The subscription name must be distinct from the name of any existing subscription in the database. The subscription represents a ...

postmaster.opts A file recording the command-line options the server was last started with postmaster.pid A lock file recording the current postmaster process ID (PID), cluster data directory path, ...

Mathematical operators are provided for many PostgreSQL types. For types without standard mathematical conventions (e.g., date/time types) we describe the actual behavior in subsequent sections. Table ...