Bypassing Column Limiting and Other Features - Teradata Warehouse Miner

Teradata® Warehouse Miner™ User Guide - Volume 2ADS Generation

Product
Teradata Warehouse Miner
Release Number
5.4.6
Published
November 2018
Language
English (United States)
Last Update
2018-12-07
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B035-2301
Product Category
Software

Column limiting and certain metadata gathering features are bypassed for certain special-purpose analyses such as those that represent subqueries or seed or recursive components of With (Recursive) queries. These features are also bypassed for any analyses that follow them in a chain of published analyses. If however a bypassed analysis is also referenced by a non-bypassed analysis, a warning message is given to warn of possibly unexpected results:

An analysis being published, '...', is referenced both by a bypassed analysis (such as a Subquery or With Recursive Query) and a non-bypassed analysis, possibly leading to unexpected results.

It is worth noting that the anchor table replacement feature is not supported for the same special-purpose analyses mentioned above, for the base query of a With (Recursive) analysis, or for analyses that produce a score table or do not have anchor columns selected. However, other bypassed analyses (i.e., those referenced by subquery or With (Recursive) analyses) do support anchor table replacement if they have anchor columns selected.

This is a change from releases prior to TWM 5.3.2.