DefaultRowGroupSize - Analytics Database - Teradata Vantage

Database Utilities

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
2024-05-02
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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.