We're pleased to announce that we published the schedule of the PGDay/MED 2024 taking place in Naples, Italy, on December ...

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, ...

CREATE TABLE will create a new, initially empty table in the current database. The table will be owned by the user issuing the command. If a schema name is given (for example, CREATE TABLE ...

Peter Eisentraut (peter.eisentraut at enterprisedb.com) EDB Dresden, Germany Works on the build system, porting, documentation, and the internationalization effort, and codes many other improvements.

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.

Aggregate functions compute a single result from a set of input values. The built-in general-purpose aggregate functions are listed in Table 9.55 while statistical aggregates are in Table 9.56. The ...

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, ...

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 ...

For best optimization results, you should label your functions with the strictest volatility category that is valid for them. Another important example is that the current_timestamp family of ...

Customer example Consultancy and Support from 2ndQuadrant for online trading platform, tastyworks, boosted PostgreSQL performance by 400%. tastyworks CTO, Jordan von Kluck, has this to say about ...

ALTER LARGE OBJECT — change the definition of a large object ALTER MATERIALIZED VIEW — change the definition of a materialized view ALTER OPERATOR — change the definition of an operator ALTER OPERATOR ...

To initiate streaming replication, the frontend sends the replication parameter in the startup message. A Boolean value of true (or on, yes, 1) tells the backend to go into physical replication ...