Effect of Changing Column Data Type on Statistics - Analytics Database - Teradata Vantage

SQL Data Definition Language Detailed Topics

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2024-12-13
dita:mapPath
vuk1628111288877.ditamap
dita:ditavalPath
qkf1628213546010.ditaval
dita:id
jbg1472252759029
lifecycle
latest
Product Category
Teradata Vantage™

If you change the data type of a column, Vantage no longer uses the statistics that reference the column. Recollecting the statistics on the modified column makes them usable again.