At this point, you should have a schema that you believe will suit your needs—for now anyway. However, do expect to revisit the schema design. It is quite normal to start with something workable, and then subsequently make modifications to address issues, and implement features that require changes. The only irritant with changing the schema is that you probably need to re-index all of the data. The only exception to this would be an analysis step applied only at query time.

In the next chapter, Text Analysis, you'll learn about various text-processing steps such as tokenization, case normalization, stemming, synonyms, and other miscellaneous text processing, which are important parts of search engines since the details of the text have an effect on getting good search results.