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.
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