pg_parameter

pg_parameter_status
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pg_parameter_status

pg_parameter_status — Get the value of a parameter from the database server

Synopsis

pg_parameter_status conn paramName

Description

pg_parameter_status returns the value of a PostgreSQL parameter as supplied by the server. Different releases of PostgreSQL may provide different parameters. As of PostgreSQL-8.1.4, the following parameters are available.

Parameter	Description	Example Value
client_encoding	Client's character set encoding	SQL_ASCII
DateStyle	Display format and rules for ambiguous date/time values	ISO, MDY
integer_datetimes	Date/times are integer based	off
is_superuser	Has superuser rights?	off
standard_conforming_strings	Backslash \ is literal in quoted strings	off
server_encoding	Server (database) character set encoding	SQL_ASCII
server_version	PostgreSQL server version	8.1.4
session_authorization	Username	guest
TimeZone	Time zone for displaying and interpreting time stamps	EST5EDT

Arguments

conn: The handle of the connection.
paramName: The name of the parameter to get. See above list.

Return Value

The value of the parameter, or an empty string if no such parameter was supplied by the database.

Notes

This command does not contact the database server. Parameters are supplied by the server at connection time (or possibly later) and saved by the interface until needed.

This command uses or emulates the PostgreSQL libpq function PQparameterStatus.

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