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
- Operators
These descriptions provide the basis for all Teradata PT operations, as shown in the following table.
Metadata Type | Purpose |
---|---|
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.