TDV Adapter for MongoDB

Build 21.0.8137

Miscellaneous

This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.


PropertyDescription
DataModelBy default, the provider will not automatically discover the metadata for a child table as its own distinct table. To enable this functionality, set DataModel to Relational .
FlattenArraysBy default, nested arrays are returned as strings of JSON. The FlattenArrays property can be used to flatten the elements of nested arrays into columns of their own. Set FlattenArrays to the number of elements you want to return from nested arrays.
FlattenObjectsSet FlattenObjects to true to flatten object properties into columns of their own. Otherwise, objects nested in arrays are returned as strings of JSON.
GenerateSchemaFilesIndicates the user preference as to when schemas should be generated and saved.
MaxRowsLimits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time.
NoCursorTimeoutThe server normally times out idle cursors after an inactivity period (10 minutes) to prevent excess memory use. Set this option to prevent that.
OtherThese hidden properties are used only in specific use cases.
PagesizeThe maximum number of results to return per page from MongoDB.
QueryPassthroughThis option passes the query to MongoDB as-is.
ReadonlyYou can use this property to enforce read-only access to MongoDB from the provider.
ReadPreferenceSet this to a strategy for reading from a replica set. Accepted values are primary, primaryPreferred, secondary, secondaryPreferred, and nearest.
RowScanDepthThe maximum number of rows to scan to look for the columns available in a table.
SlaveOKThis property sets whether the provider is allowed to read from secondary (slave) servers.
TimeoutThe value in seconds until the timeout error is thrown, canceling the operation.
TypeDetectionSchemeComma-separated options for how the provider will scan the data to determine the fields and datatypes in each document collection.
UseFindAPIExecute MongoDB queries using db.collection.find().
WriteConcernRequests acknowledgment that the write operation has propagated to the specified number of mongod instances.
WriteConcernJournaledRequires acknowledgment that the mongod instances, as specified in the WriteConcern property, have written to the on-disk journal.
WriteConcernTimeoutThis option specifies a time limit, in milliseconds, for the write concern.
WriteSchemeSets whether the object type for inserted or updated objects is determined from the existing column metadata or the input value type.

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Build 21.0.8137