Chapter 40. libpq

Table of Contents

Control and Initialization

Database Connection Functions

Query Execution Functions

Fast Path

Asynchronous Notification

Functions Associated with the COPY Command

libpq Tracing Functions

User Authentication Functions

BUGS

Sample Programs

libpq is the application programming interface to Postgres. libpq is a set of library routines which allows client programs to pass queries to the Postgres backend server and to receive the results of these queries. This version of the documentation describes the C interface library. Three short programs are included at the end of this section to show how to write programs that use libpq. There are several examples of libpq applications in the following directories:

../src/test/regress
         ../src/test/examples
         ../src/bin/psql

Frontend programs which use libpq must include the header file libpq-fe.h and must link with the libpq library.