Teradata PT metadata describes the characteristics of objects, such as the following data and processing objects:
- Data sources and targets
- Table, column, and file formats
These descriptions provide the basis for all Teradata PT operations, as shown in the following table.
|Attributes of data sources and targets||Determines the fastest access path for the Parallel Execution Plan|
|Table and column definitions||Transforms, filters, or cleanses data|
Teradata PT components, in effect, are metadata driven, as they are created, optimized, and executed based on guidance derived from the metadata definitions.