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Load a Schema from a DRDL File

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Overview

The --schema option allows you to specify a schema file for mongosqld to use.

The schema generation tool mongodrdl outputs a schema file in Document Relational Definition Language (DRDL) format. Examine the generated schema’s table structure and field types to verify that the generated schema supports your reporting requirements.

You can manually edit the schema definition files to perform the following actions:

  • Add fields that mongodrdl did not discover within the subset of documents that it sampled
  • Remove fields
  • Remove tables
  • Rename tables, so long as the collection field remains the same
  • Rename fields using the sqlname option

Important

To apply any changes you make to your DRDL files, you must restart mongosqld.

Note

BI Connector does not recognize geospatial fields when reading from a view.