Query Modifiers
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In addition to the MongoDB Query Operators, there are a number of "meta" operators that let you modify the output or behavior of a query.
Note
- Deprecated in the
mongo
Shell since v3.2 - Starting in v3.2, the query "meta" operators are deprecated in
the
mongo
shell. In themongo
shell, use the cursor methods instead.
The driver interfaces may provide cursor methods that wrap these options. When possible, use these methods; otherwise, you can add these options using either of the following syntax:
db.collection.find( { <query> } )._addSpecial( <option> ) db.collection.find( { $query: { <query> }, <option> } )
Operators
Modifiers
Note
- Deprecated in the
mongo
Shell since v3.2 - Starting in v3.2, the query "meta" operators are deprecated in
the
mongo
shell. In themongo
shell, use the cursor methods instead.
Name | Description |
---|---|
Adds a comment to the query to identify queries in the database profiler output. | |
Forces MongoDB to report on query execution plans. See explain() . | |
Forces MongoDB to use a specific index. See hint() | |
Specifies an exclusive upper limit for the index to use in a query. See max() . | |
Specifies a cumulative time limit in milliseconds for processing operations on a cursor. See maxTimeMS() . | |
Specifies an inclusive lower limit for the index to use in a query. See min() . | |
Returns a cursor with documents sorted according to a sort specification. See sort() . | |
Wraps a query document. | |
Forces the cursor to only return fields included in the index. | |
Modifies the documents returned to include references to the on-disk location of each document. |
Sort Order
Name | Description |
---|---|
A special sort order that orders documents using the order of documents on disk. |