FilterSpecification
Contains the filter criteria used to limit which items are included in an export. If you don't include this parameter, all items and attributes are exported.
Contents
Note
In the following list, the required parameters are described first.
- ExpressionAttributeNames
-
One or more substitution tokens for attribute names in an expression. For more information, see Expression Attribute Names in the Amazon DynamoDB Developer Guide.
Type: String to string map
Value Length Constraints: Maximum length of 65535.
Required: No
- ExpressionAttributeValues
-
One or more values that can be substituted in an expression. For more information, see Expression Attribute Values in the Amazon DynamoDB Developer Guide.
Type: String to AttributeValue object map
Required: No
- FilterExpression
-
A condition that filters which items are included in the export. This parameter uses the same syntax as
FilterExpressioninQueryandScan. If you don't provideKeyConditionExpression, this expression can also reference key attributes. If you don't specify this parameter, all items are included in the export.Type: String
Required: No
- KeyConditionExpression
-
A condition expression that filters items by key values. The expression must test equality on a single partition key value and can optionally compare a sort key value. This parameter uses the same syntax as
KeyConditionExpressioninQuery. When you provide this parameter,FilterExpressioncan only reference non-key attributes. If you don't specify this parameter, all items are eligible for export.Type: String
Required: No
- ProjectionExpression
-
The attributes you want to retrieve for items included in the export. Separate attribute names in the expression with commas. If you don't specify this parameter, all attributes are returned.
Type: String
Required: No
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
