TDV Adapter for Elasticsearch

Build 21.0.8137

RowScanDepth

The maximum number of rows to scan when generating table metadata. Set this property to gain more control over how the provider detects arrays.

Data Type

string

Default Value

"100"

Remarks

This property is used when generating table metadata and specifically is used to identify arrays within the data. Elasticsearch allows any field to be an array and does not identify which fields are arrays in the mapping data. Thus RowScanDepth rows will be queried and scanned to identify if any of the fields contain arrays.

When QueryPassthrough is set to True, the columns in a table must be determined by scanning the data returned in the request. This value determines the maximum number of rows that will be scanned to determine the table metadata. The default value is 100.

Setting a high value may decrease performance. Setting a low value may prevent the data type from being determined properly, especially when there is null data.

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Build 21.0.8137