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Summary

1. Linux Installation

You can install from packages or compile from source.

  • 1.1. Installing from DEB/RPM packages
  • 1.2. Compiling the extension from source

1.1. Installing from DEB/RPM packages

1.1.1. Install the package

# For example, Debian-like 64 bits:
sudo dpkg -i omnidb-plugin_2.14.0-debian-amd64.deb

# For example, for CentOS-like 64 bits:
sudo rpm -ivU omnidb-plugin_2.14.0-centos-amd64.rpm

1.1.2. Create a symlink

# Find the PostgreSQL version and path for $libdir and create a link to the specific library. For example:
sudo ln -s /opt/omnidb-plugin/omnidb_plugin_96.so /usr/lib/postgresql/9.6/lib/omnidb_plugin.so

1.1.3. Set shared_preload_libraries

nano /etc/postgresql/X.Y/main/postgresql.conf
    shared_preload_libraries = 'omnidb_plugin'

sudo systemctl restart postgresql

1.1.4. Post-installation steps

1.1.4.1. Create omnidb schema in your database (should be done by a superuser)

psql -d <database> -f debugger_schema.sql

1.1.4.2. Create sample functions (optional)

psql -d <database> -f sample_functions.sql

1.1.4.3. Next steps

Follow Post-installation steps in section 4.

1.2. Compiling the extension from source

1.2.1. Install headers for PostgreSQL and libpq

sudo apt install postgresql-server-dev-X.Y libpq-dev

1.2.2. Compile omnidb_plugin

make

1.2.3. Install omnidb_plugin

sudo make install

1.2.4. Set shared_preload_libraries

nano /etc/postgresql/X.Y/main/postgresql.conf
    shared_preload_libraries = 'omnidb_plugin'

sudo systemctl restart postgresql

1.2.5. Post-installation steps

1.2.5.1. Create omnidb_plugin extension (should be done by a superuser)

psql -d <database> -c 'CREATE EXTENSION omnidb_plugin'

1.2.5.2. Create sample functions (optional)

psql -d <database> -f sample_functions.sql

1.2.5.3. Next steps

Follow Post-installation steps in section 4.

2. Windows Installation

2.1. Downloading the plugin

Download the zip corresponding to your architecture from the website.

2.2. Installing the plugin

Move the omnidb_plugin.dll corresponding to your PostgreSQL version to the folder lib, which is inside the folder where PostgreSQL was installed.

2.3. Set shared_preload_libraries

Change the file PostgreSQL_directory/data/postgresql.conf, including the following line:

shared_preload_libraries = 'omnidb_plugin'

Then restart PostgreSQL.

2.4. Post-installation steps

2.4.1. Create omnidb schema in your database (should be done by a superuser)

psql -d <database> -f debugger_schema.sql

2.4.2. Create sample functions (optional)

psql -d <database> -f sample_functions.sql

2.4.3. Next steps

Follow Post-installation steps in section 4.

3. FreeBSD Installation

3.1. Downloading the plugin

Download the tar.gz corresponding to your architecture from the website.

wget --no-check-certificate https://omnidb.org/dist/2.14.0/omnidb-plugin_2.14.0-freebsd.tar.gz

3.1. Installing the plugin

Move the omnidb_plugin.so corresponding to your PostgreSQL version to the folder lib, which is inside the folder where PostgreSQL was installed.

tar -xzvf omnidb-plugin_2.14.0-freebsd.tar.gz
cp omnidb-plugin_2.14.0-freebsd/omnidb_plugin_10.so /usr/local/lib/postgresql/omnidb_plugin.so

3.3. Set shared_preload_libraries

Change the file PostgreSQL_directory/data/postgresql.conf, including the following line:

shared_preload_libraries = 'omnidb_plugin'

Then restart PostgreSQL.

3.4. Post-installation steps

3.4.1. Create omnidb schema in your database (should be done by a superuser)

psql -d <database> -f debugger_schema.sql

3.4.2. Create sample functions (optional)

psql -d <database> -f sample_functions.sql

3.4.3. Next steps

Follow Post-installation steps in section 4.

4. Post-installation steps ** REQUIRED **

4.1. Grant privileges to each database user that will debug functions (should be done by a superuser)

Every database user that uses the debugger needs access to the debugger control tables.

psql -d <database> -c 'GRANT ALL ON SCHEMA omnidb TO <user>; GRANT ALL ON ALL TABLES IN SCHEMA omnidb TO <user>;'

4.2. Enable local passwordless access to each database user that will debug functions

Every database user that uses the debugger needs local passwordless access to the database. This is because the database will create an additional local connection to perform debugging operations.

This can be done by adding a rule to pg_hba.conf or changing .pgpass of the postgres user.

4.2.1 pg_hba.conf

Add a rule similar to:

a) Linux:

# TYPE  DATABASE        USER            ADDRESS                 METHOD
local   all             <user>                                  trust

b) Windows:

# TYPE  DATABASE        USER            ADDRESS                 METHOD
host    all             <user>          127.0.0.1/32            trust

4.2.2 .pgpass

hostname:port:database:username:password

More information about how .pgpass works can be found here: https://www.postgresql.org/docs/10/static/libpq-pgpass.html

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