PostgreSQL, more commonly known as Postgres, is an open source relational database management system (RDBMS or DBMS) that is the default DBMS for the Chado database schema. See Databases and GMOD for other choices, and for an introduction to database terms. This page is in an introduction to Postgres for GMOD users.
Postgres in GMOD
Several GMOD components can use database management systems. Postgres's primary role in GMOD is to be the DBMS for the Chado database schema. Chado was developed with Postgres as its target DBMS and Chado off the shelf will work best with Postgres.
Postgres can also be used to back Galaxy.
What Do I Need to Know About Postgres?
How much do you need to know about Postgres to use Chado? You need to know:
- How to get and install Postgres
- How to administer Postgres databases
A wealth of information on Postgres is available at the Postgres web site. These pages are particularly helpful:
- Postgres Manuals page - Includes online and printable versions.
- Online manual for latest version of Postgres
- Server Administration section of online manual including directions on installation and configuration.
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Postgres changes with every new release and some of those changes are required for certain GMOD components to work, and some interfere with the workings of other GMOD components.
Add list or matrix of known requirements/interactions.
What About MySQL?
MySQL is more popular than Postgres. Why would you ever want to pick Postgres instead of MySQL?
The trade-off between MySQL and Postgres is, allowing some oversimplification, simplicity on one hand versus more features on the other hand. With either platform you will get good performance, excellent documentation, and well-supported software. Postgres was picked for Chado because of its rich feature set.
Postgres will be a bit harder for the novice but it is only required if you want to install Chado.