| Operators | Meaning |
|---|---|
| + | A leading "+" means the word is mandatory in all results returned. |
| - | A leading "-" means the word cannot appear in any row returned. |
| < | A leading "<" means the word that follows has a lower relevance than other words, although results containing it will still match |
| > | A leading ">" means the word that follows has a higher relevance than other words. |
| () | Parenthesis is used to group words into subexpressions to give them higher precedence. |
| ~ | A leading "~" means the word following contributes negatively to the relevance of the row (which is different to the '-' operator, which specifically excludes the word, or the '<' operator, which still causes the word to contribute positively to the relevance of the row. |
| * | A trailing wildcard "*" indicats zero or more leading characters. It can only appear at the end of a word. |
| "..." | Anything enclosed in the double quotes is taken as a whole (so you can match phrases, for example). |
| special cases |
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