17.10 - ConnectionBufferSize - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Database Utilities

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Configuration
Publication ID
B035-1102-171K
Language
English (United States)

Controls how much memory is allocated for buffering data between Vantage and external data sources. This setting is effective only when the Native Object Store (NOS) feature is enabled to allow creation of foreign tables.

Field Group

Native Object Store

Valid Settings

1 to 16 MB

Default

16 MB

Changes Take Effect

After the DBS Control Record has been written.

Usage Notes

Foreign tables allow Vantage to access data from external, cloud-based data storage, such as AWS S3, without requiring you to manually move the data into the database first from where it natively resides. Foreign tables are identified by a hostname, path, and other metadata that point to the external storage. Vantage can read and process semi-structured or unstructured external data in foreign tables using standard SQL. For example, you can use Teradata analytic functions to examine the data, join it to the relational data in the database, and issue queries against it as you can for other data in Vantage.

Related Information

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