Teradata PT metadata describes the characteristics of data and processing objects, such as:
These descriptions provide the basis for all Teradata PT operations, as shown in Table 2.
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.