The text search allows queries to be
formed from expressions containing the keywords AND, OR, and NOT, and
grouped with parentheses. For example:
- information retrieval
- finds documents containing
'information' or 'retrieval'
- information or retrieval
- same as above
- information and retrieval
- finds documents containing both
'information' and 'retrieval'
- information not retrieval
- finds documents containing
'information' but not 'retrieval'
- (information not retrieval) and insurance
- finds documents containing
'insurance',
plus 'information' but not 'retrieval'
- web*
- finds documents containing words
starting with 'web'
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