16.20 - Example: Collecting Single-Column PARTITION Statistics - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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The following examples collect statistics on the system-derived PARTITION column for the table named table_1.

Even though you have specified sampled statistics for the second example, the system ignores it and uses a value of 100 percent because you cannot collect sampled statistics on a system-derived PARTITION column. See Teradata Vantage™ SQL Data Definition Language Detailed Topics , B035-1184 .

     COLLECT STATISTICS ON table_1 COLUMN PARTITION;
     COLLECT STATISTICS USING SAMPLE table_1 COLUMN PARTITION;