Use Operators and Collectors in Atlas Search Queries
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Operators
The $search aggregation pipeline stage has the following operators.
The table also shows the Atlas Search field types that
the operators support queries over.
Operator | Description | Supported Atlas Search Types |
|---|---|---|
Performs a search-as-you-type query from an incomplete input string. | ||
Combines other operators into a single query. | Field types supported by the operators used inside the
| |
Queries fields in embedded documents, which are documents that are elements of an array. | embeddedDocuments and
field types supported by the operators used inside the
| |
Checks whether the field contains the specified value, including null value. | ||
Tests for the presence of a specified field, regardless of the field type. | Field type isn't used by the | |
Queries for values with specified geo shapes. | ||
Queries for points within specified geographic shapes. | ||
Queries both single value and array of values. | ||
(Deprecated) Performs semantic search using Hierarchical Navigable Small Worlds algorithm. | ||
Queries for similar documents. | ||
Queries for values near a specified number, date, or geo point. | ||
Searches documents for terms in an order similar to the query. | ||
Supports querying a combination of indexed fields and values. | ||
Queries for values within a specific numeric, date, string, and objectId range. | ||
Interprets the | ||
(Deprecated) Specifies relative positional requirements for query predicates within specified regions of a text field. | ||
Performs textual analyzed search. | ||
Supports special characters in the query string that can match any character. |
Collectors
Collectors return a document representing the metadata results, typically an aggregation over the matching search results.
The Atlas Search aggregation pipeline stage has the following collector. The table also shows the Atlas Search field types that the collector supports.
Operator | Description | Supported Field Types |
|---|---|---|
Groups query results by values or ranges in specified, faceted fields and returns the count for each of those groups. |
Continue Learning
Follow along with this video to learn how to search fields in embedded documents using the embeddedDocument operator, how to perform fuzzy search using the text operator fuzzy option, how to build search-as-you-type function using the autocomplete operator, how to run geospatial queries using the geoWithin and geoShape operators, how to retrieve similar or alternate results using the moreLikeThis operator, and how to display search terms in their original context using highlighting.
Duration: 12 Minutes