15.00 - Metadata - Parallel Transporter

Teradata Parallel Transporter Operator Programmer Guide

prodname
Parallel Transporter
vrm_release
15.00
category
Programming Reference
featnum
B035-2435-034K

Metadata

Teradata PT metadata describes the characteristics of data and processing objects, such as:

  • Data sources and targets
  • Table, column, and file formats
  • Operators
  • These descriptions provide the basis for all Teradata PT operations, as shown in Table 2.

     

    Table 2: Metadata Use 

    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.