The text search engine allows queries to be formed from arbitrary Boolean
expressions containing the keywords AND, OR, and NOT, and grouped with
parentheses. Check these examples:
- hot dog
- finds documents containing 'hot' or 'dog'
- hot OR dog
- same as above
- hot AND dog
- finds documents containing both 'hot' and 'dog'
- hot NOT dog
- finds documents containing 'hot' but not 'dog'
- (hot NOT dog) AND mustard
- finds documents containing 'mustard', plus 'hot' but not 'dog'
- pre*
- finds documents containing words starting with 'pre'
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