IvorySQL is advanced, fully featured, open source Oracle compatible PostgreSQL with a firm commitment to always remain 100% compatible and a Drop-in replacement of the latest PostgreSQL. IvorySQL adds a “compatible_db” toggle switch to switch between Oracle and PostgreSQL compatibility modes. One of the highlights of IvorySQL is PL/iSQL procedural language that supports oracle’s PL/SQL syntax and Oracle style Packages.

IvorySQL has imported and enhanced the Orafce extension to add support for numerous Oracle compatibility features including built-in PACKAGES, data types, and conversion functions

The IvorySQL project is released under the Apache 2 license and encourages all types of contributions. For IvorySQL community no contribution is too small, and we want to thank all our community contributors.

We are committed to following the principles of the open source way

We are committed to abiding by the principles of open-source ways and we strongly believe in building a healthy and inclusive community. We maintain that good ideas can come from anywhere, and the best ideas should win. Only by including diverse perspectives, we can reach the best decision. While the first version of IvorySQL is mainly focused on Oracle Compatibility features, going forward the future road map and feature set will be determined by the community in an open-source way.

Compiling from source

IvorySQL can be built on Linux, OSX, Unix and Windows platforms. This section describes the step to compile the source on the Linux based systems.

Getting the source

Clone the repository with either of the following command:

git clone https://github.com/IvorySQL/IvorySQL.git
git clone git@github.com:IvorySQL/IvorySQL.git

Requirements

To compile the IvorySQL from the source code, you have to ensure that prerequisite packages are available on the system.

• Required Packages The following software packages are required for building IvorySQL:

  • make - GNU make version 3.80 or newer
  • gcc - ISO/ANSI C compiler (at least C99-compliant). Recent versions of GCC are recommended.
  • libreadline - The GNU Readline library is used by default.
  • zlib - zlib compression library is used by default.
  • Flex - (Flex 2.5.31 or later)
  • Bison - (Bison 1.875 or later)

• Optional Packages The following packages are optional. They are not required in the default configuration, but they are needed when certain build options are enabled.

  • libperl - (Perl 5.8.3 or later) To build the server programming language PL/Perl. Perl library installation with the header files. libperl library must be a shared library
  • libpython - (Python 2.6 or later, Python 3.1 or later) To build the PL/Python server programming language. Python installation with the header files and the distutils module. libpython library must be a shared library.
  • Tcl - (Tcl 8.4 or later) To build the PL/Tcl procedural language.
  • Gettext API - (Tcl 8.4 or later) To enable Native Language Support (NLS), to display a program's messages in a language other than English.
  • OpenSSL - (1.0.1 or later) To support encrypted client connections.
  • LZ4 - To support compression of data.

Preparing System

Following are the minimal packages needed to build from source:

sudo yum install -y bison-devel readline-devel zlib-devel openssl-devel wget
sudo yum groupinstall -y 'Development Tools'

Installation Procedure

• Configuration The first step of the installation procedure is to configure the source tree for your system and choose the options you would like. This is done by running the configure script. For a default installation simply enter:

  ./configure

  The default configuration will build the server and utilities, as well as all client applications and interfaces that require only a C compiler. All files will be installed under /usr/local/pgsql by default. You can customize the build and installation process by supplying one or more command line options to configure see the details here

• Build To start the build, type either of:

  make
  make all
  

• Regression Tests To test the newly built server before you install it, you can run the regression tests at this point. type either of:

  make check
  make check-world
  

• Installation To install, enter:

  make install
  

Contributing to the IvorySQL

There are plenty of ways to contribute to IvorySQL. You can contribute by providing the documentation updates, by providing the translations for the documentation. If you have design skills you can contribute to the IvorySQL website project. Testing the IvorySQL and reporting issues or by issuing pull requests for bug fixes or new features or answering the questions on mailing lists are some ways to contribute to the IvorySQL project and all types of contributions are welcomed and appreciated by the IvorySQL community.

• Join IvorySQL mailing lists to get started

Documentation

Please check the online documentation.