16.10 - About Estimating the Time Needed To Reassign Maps - Teradata Database

Teradata Database Administration

Product
Teradata Database
Release Number
16.10
Release Date
April 2018
Content Type
Administration
Publication ID
B035-1093-161K
Language
English (United States)
To see an estimate of the time needed for planned map reassignments, you can use any of the following methods:
  • Add the table to DBC.ReconfigRedistOrderTbl and run the Reconfig estimator.
  • Experiment with INSERT-SELECT or ALTER TABLE on sample data.
  • Use DBQL step logging to log CPU and I/O for each step. Scale up the numbers to arrive at an estimate.

Use MONITOR SESSION to compare estimates with actual times.