16.20 - Example: Querying the Number of Rows on Each Primary AMP - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Functions, Expressions, and Predicates

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

The following query returns the number of rows on each primary AMP where column_1 and column_2 are the primary index of table T.

   SELECT HASHAMP (HASHBUCKET (HASHROW (column_1,column_2))), COUNT (*)
   FROM T
   GROUP BY 1
   ORDER BY 1;