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Showing content from https://docs.aws.amazon.com/iot/latest/developerguide/query-syntax.html below:

Query syntax - AWS IoT Core

In fleet indexing, you use a query syntax to specify queries.

The query syntax supports the following features:

• Terms and phrases

• Searching fields

• Prefix search

• Range search

• Boolean operators AND, OR, NOT, and –. The hyphen is used to exclude something from search results (for example, thingName:(tv* AND -plasma)).

• Grouping

• Field grouping

• Escaping special characters (such as with \)

The query syntax doesn't support the following features:

• Leading wildcard search (such as "*xyz"), but searching for "*" matches all things

• Regular expressions

• Boosting

• Ranking

• Fuzzy searches

• Proximity search

• Sorting

• Aggregation

• Special characters: `, @, #, %, \, /, ', ;, and ,. Note that , is only supported in geoqueries.

A few things to note about the query language:

• The default operator is AND. A query for "thingName:abc thingType:xyz" is equivalent to "thingName:abc AND thingType:xyz".

• If a field isn't specified, AWS IoT searches for the term in all the registry, Device Shadow, and Device Defender fields.

• All field names are case sensitive.

• Search is case insensitive. Words are separated by white-space characters as defined by Java's Character.isWhitespace(int).

• Indexing of Device Shadow data (unnamed shadows and named shadows) includes reported, desired, delta, and metadata sections.

• Device shadow and registry versions aren't searchable, but are present in the response.

• The maximum number of terms in a query is twelve.

• The special character , is only supported in geoqueries.

Querying for aggregate data

Example thing queries

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