DefaultRowGroupSize - Teradata Vantage - Database Engine 20

Database Utilities

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Database Engine 20
Teradata Vantage
Release Number
20.00
Published
June 2025
ft:locale
en-US
ft:lastEdition
2026-03-26
dita:mapPath
ron1747160181474.ditamap
dita:ditavalPath
ft:empty
dita:id
vkz1472241255652
lifecycle
latest
Product Category
Teradata Vantageā„¢

Purpose

Determines the size of RowGroups used while creating Parquet files if a value is not explicitly provided through user query.

Field Group

Native Object Store

Valid Settings

4 to 16 MB

Default

16 MB

Changes Take Effect

After the DBS Control Record has been written.

Usage Notes

  • There is a chance of higher main memory usage when the row group size is large.
  • Main memory usage depends on the number of columns in the table.

Related Topics

The following fields affect the NOS feature and foreign table access.