RetrievalFilter

Specifies the filters to use on the metadata attributes in the knowledge base data sources before returning results. For more information, see Query configurations. See the examples below to see how to use these filters.

This data type is used in the following API operations:

• Retrieve request – in the filter field

• RetrieveAndGenerate request – in the filter field

Contents

Important

This data type is a UNION, so only one of the following members can be specified when used or returned.

andAll

Knowledge base data sources are returned if their metadata attributes fulfill all the filter conditions inside this list.

Type: Array of RetrievalFilter objects

Array Members: Minimum number of 2 items.

Required: No

equals

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value matches the value in this object.

The following example would return data sources with an animal attribute whose value is cat:

"equals": { "key": "animal", "value": "cat" }

Type: FilterAttribute object

Required: No

greaterThan

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is greater than the value in this object.

The following example would return data sources with an year attribute whose value is greater than 1989:

"greaterThan": { "key": "year", "value": 1989 }

Type: FilterAttribute object

Required: No

greaterThanOrEquals

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is greater than or equal to the value in this object.

The following example would return data sources with an year attribute whose value is greater than or equal to 1989:

"greaterThanOrEquals": { "key": "year", "value": 1989 }

Type: FilterAttribute object

Required: No

in

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is in the list specified in the value in this object.

The following example would return data sources with an animal attribute that is either cat or dog:

"in": { "key": "animal", "value": ["cat", "dog"] }

Type: FilterAttribute object

Required: No

lessThan

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is less than the value in this object.

The following example would return data sources with an year attribute whose value is less than to 1989.

"lessThan": { "key": "year", "value": 1989 }

Type: FilterAttribute object

Required: No

lessThanOrEquals

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is less than or equal to the value in this object.

The following example would return data sources with an year attribute whose value is less than or equal to 1989.

"lessThanOrEquals": { "key": "year", "value": 1989 }

Type: FilterAttribute object

Required: No

listContains

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is a list that contains the value as one of its members.

The following example would return data sources with an animals attribute that is a list containing a cat member (for example ["dog", "cat"]).

"listContains": { "key": "animals", "value": "cat" }

Type: FilterAttribute object

Required: No

notEquals

Knowledge base data sources that contain a metadata attribute whose name matches the key and whose value doesn't match the value in this object are returned.

The following example would return data sources that don't contain an animal attribute whose value is cat.

"notEquals": { "key": "animal", "value": "cat" }

Type: FilterAttribute object

Required: No

notIn

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value isn't in the list specified in the value in this object.

The following example would return data sources whose animal attribute is neither cat nor dog.

"notIn": { "key": "animal", "value": ["cat", "dog"] }

Type: FilterAttribute object

Required: No

orAll

Knowledge base data sources are returned if their metadata attributes fulfill at least one of the filter conditions inside this list.

Type: Array of RetrievalFilter objects

Array Members: Minimum number of 2 items.

Required: No

startsWith

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value starts with the value in this object. This filter is currently only supported for Amazon OpenSearch Serverless vector stores.

The following example would return data sources with an animal attribute starts with ca (for example, cat or camel).

"startsWith": { "key": "animal", "value": "ca" }

Type: FilterAttribute object

Required: No

stringContains

Knowledge base data sources are returned if they contain a metadata attribute whose name matches the key and whose value is one of the following:

• A string that contains the value as a substring. The following example would return data sources with an animal attribute that contains the substring at (for example cat).

  "stringContains": { "key": "animal", "value": "at" }

• A list with a member that contains the value as a substring. The following example would return data sources with an animals attribute that is a list containing a member that contains the substring at (for example ["dog", "cat"]).

  "stringContains": { "key": "animals", "value": "at" }

Type: FilterAttribute object

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

• AWS SDK for C++

• AWS SDK for Java V2

• AWS SDK for Ruby V3