Preface

Welcome to the PostgreSQL - Red Hat Edition Graphical Tools Guide. This manual describes how you use the Administrator, Visual Explain, and Control Center tools of PostgreSQL - Red Hat Edition.

For your convenience, HTML and PDF versions of this and other Red Hat manuals are available online at http://www.redhat.com/docs/.

If you have suggestions for ways to improve this manual, submit a report in Bugzilla (http://bugzilla.redhat.com/bugzilla/) in the "Documentation" category for Red Hat Database.

1. Document Conventions

This manual uses the following conventions:

Tips provide information that can make it easier for you to use the software.

	Tip
	Some menu-bar functions can be activated from the keyboard. Hold [Alt] and press the underlined letter in the menu title (for example, "f" for File).

Notes bring important information to your attention.

	Note
	Visual Explain enables you to save (export) the query in the SQL SELECT Statement box and to import a previously saved query. To export a query, click Export To File and name the file in which the store the query. To import a query, click Import From File and select the file in which the query resides.

Warnings inform you of unexpected results.

	Warning
	Cache should be used very carefully; its use may generate unexpected results in certain cases. For example, when two backends are using the same sequence object, they each cache the values and change the sequence object. As a result, the sequence may not produce the expected results. Refer to the PostgreSQL 7.3 Reference Manual for further details.

Cautions inform you of severe consequences.

	Caution
	Use this option very carefully! If confirmations is turned off and a DROP CASCADE is performed on the wrong object on a PostgreSQL 7.3 backend, you could lose a substantial portion of your database permanently.