Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




15.15.3. Creating Index Keys

As part of every table-write operation (INSERT, UPDATE, DELETE), the storage engine is required to update its internal index information.

The method used to update indexes will vary from storage engine to storage engine, depending on the method used to store the index.

In general, the storage engine will have to use row information passed in functions such as write_row(), delete_row(), and update_row() in combination with index information for the table to determine what index data needs to be modified, and make the needed changes.

The method of associating an index with its row will depend on your storage approach. The BerkeleyDB storage engine stores the primary key of the row in the index while other storage engines often store the row offset.

  Published under the terms of the GNU General Public License Design by Interspire