What does a search query like (apple AND banana) W/10 (pear AND grape) return in dtSearch?

The search query (apple AND banana) W/10 (pear AND grape) is classified as invalid because it incorrectly uses the proximity operator "W/" in the context of grouping terms with boolean operators. In dtSearch, the proximity operator follows specific syntax rules that require terms to be placed in a context that can be evaluated for proximity. The lack of proper structuring when combining boolean expressions with proximity searches results in an invalid query.

When constructing queries in dtSearch, it’s important to ensure that proximity operators are applied appropriately, usually to specific terms or phrases rather than combining multiple grouped boolean expressions. The correct formulation would involve either using proximity operators with single terms or ensuring the grouping is compatible with the proximity logic.

Recognizing the need for clarity and the correct usage of search terms can help users create effective and valid queries in dtSearch, which is crucial for retrieving the desired information efficiently.