ProjectOperation
A transform operation that projects columns. Operations that come after a projection can only refer to projected columns.
Contents
Note
In the following list, the required parameters are described first.
- ProjectedColumns
-
Projected columns.
Type: Array of strings
Array Members: Minimum number of 0 items. Maximum number of 2048 items.
Required: Yes
- Alias
-
Alias for this operation.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 64.
Required: No
- Source
-
The source transform operation that provides input data for column projection.
Type: TransformOperationSource object
Required: No
See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following: