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 single fix from 12.21. For information about new features in major release 12, see Section E.23. This is expected to be the last PostgreSQL release in the 12.X series. Users ...

To provide native support for JSON data types within the SQL environment, PostgreSQL implements the SQL/JSON data model. This model comprises sequences of items. Each item can hold SQL scalar values, ...

Aggregate functions compute a single result from a set of input values. The built-in general-purpose aggregate functions are listed in Table 9.59 while statistical aggregates are in Table 9.60. The ...

ALTER TABLE changes the definition of an existing table. There are several subforms described below. Note that the lock level required may differ for each subform. An ACCESS EXCLUSIVE lock is acquired ...

When logging_collector is enabled, this parameter sets the file names of the created log files. The value is treated as a strftime pattern, so %-escapes can be used to specify time-varying file names.

If you have pattern matching needs that go beyond this, consider writing a user-defined function in Perl or Tcl. While most regular-expression searches can be executed very quickly, regular ...

The FROM clause derives a table from one or more other tables given in a comma-separated table reference list. When a table reference names a table that is the parent of a table inheritance hierarchy, ...

41.1.1. Advantages of Using PL/pgSQL ...

DROP TRIGGER removes an existing trigger definition. To execute this command, the current user must be the owner of the table for which the trigger is defined. Destroy the trigger if_dist_exists on ...