Attribute

ColumnDiscoverySampleSize (cdss)

Purpose

Specifies the number of rows the driver fetches per collection when sampling data to detect columns and gather column statistics. The information collected in these samples is used when creating a schema map. Larger fetch sizes return samples that are more representative of your data, but at the expense of slower performance.

Valid Values

x

where:

x

specifies the number of rows the driver fetches per collection.

Notes

  • The setting for this option is written to the configuration file when generating the schema map. If you attempt a subsequent connection using the configuration file and specify a different value for this option, the driver will return an error.

Default Value

1000