Thunderstone Search Appliance Manual

Categories Type

Syntax: radio button choice

The Categories Type setting sets what type of categories are being used, and how to optimize category searches. It set to one of:

• Auto-detect Automatically detect what kind of category is being used on a per-category basis, and optimize searches accordingly. This lets non-overlapping categories (i.e. those whose pages do not occur in any other category) be searched fastest, while still supporting overlapping categories as fast as possible. This is the default mode.

• Overlapping Assume that any category might overlap another. Category searches will be slower than with the other modes. This mode was used before the Categories Type setting existed. It can be set as a fallback if the cached overlap data is believed to be incorrect for some reason, e.g. category searches are wrong.

• Non-overlapping Assume that no category overlaps another. All category searches will be as fast as the fastest Auto-detect mode search, but searches for overlapping categories may not show all results. This mode can be set to force higher-performance searches at the potential expense of accuracy.

For best search performance, categories that overlap one another - i.e. contain pages in common - should be listed most-commonly-searched first in the Categories setting list. Also, the CatnoLowest field should be selected as one of the Compound Index Fields (here. These guidelines will allow the Auto-detect mode to optimize the most searches to the fastest possible speed.