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Type:
New Feature
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Resolution: Done
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Priority:
Major - P3
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None
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Component/s: None
MongoDB 2.6 includes a $text query operator. There's a new projection syntax for including each result's relevance in the output. There's also a new syntax for sorting by relevance descending:
> db.test.createIndex({s: 'text'})
> db.test.insert({s: 'spam'})
> db.test.insert({s: 'spam eggs and spam'})
> db.test.insert({s: 'sausage and eggs'})
>
> db.test.find(
... // query
... {$text: {$search: 'spam'}},
... // new projection syntax
... {_id: false, s: true, score: {$meta: 'textScore'}}
... ).sort(
... // new sort syntax
... {score: {$meta: 'textScore'}}
)
{ "s" : "spam eggs and spam", "score" : 1.25 }
{ "s" : "spam", "score" : 1.1 }
Drivers probably already support the new projection syntax, since it's a similar structure to the $elemMatch projection operator.
If a driver has been validating that the value portion of a sort specifier is 1, -1, or a string, it should now also allow a subdocument as the value, possibly with $-prefixed field names.
- depends on
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RUBY-723 Support $meta project and sort
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- Closed
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- Closed
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PYTHON-632 Support list containing pair of (str, dict) in sort
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- Closed
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- is related to
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NODE-132 Project and sort by $meta.
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- Closed
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- links to