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Installation

This section describes the installation steps.

Building binary module

Simply run make at the top of the source tree, then make install as an appropriate user. The PATH environment variable should be set properly to point to a PostgreSQL set of binaries:

$ tar xzvf pg_hint_plan-1.x.x.tar.gz
$ cd pg_hint_plan-1.x.x
$ make
$ su
$ make install

Installing from a binary package

On Debian and Ubuntu pg_hint_plan is available as a binary package from the pgdg (PostgreSQL Global Development Group) repository. Assuming you've already added the repository to apt sources, installing the package is as simple as:

sudo apt install postgresql-<postgres version>-pg-hint-plan

Please visit https://www.postgresql.org/download/linux/ if you need help at adding the repository.

Loading pg_hint_plan

pg_hint_plan does not require CREATE EXTENSION. Loading it with a LOAD command will activate it and of course you can load it globally by setting shared_preload_libraries in postgresql.conf. Or you might be interested in ALTER USER SET/ALTER DATABASE SET for automatic loading in specific sessions.

postgres=# LOAD 'pg_hint_plan';
LOAD

Run CREATE EXTENSION and SET pg_hint_plan.enable_hint_table TO on if you are planning to use the hint table.