Salesforce queries in WireBootstrap use the query resource of the REST API to execute SOQL in Salesforce. For details on this resource, visit Execute a SOQL Query.
The datatable returned from the query contains the list of records requested from Salesforce. However, the response returned from Salesforce contains much more data than can be represented in a WireBootstrap datatable.
The service provider for the WireBootstrap for Salesforce Data Connector has an extension method called results which will return the raw results from the last Salesforce query.
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const tblAccounts = await.source.execAsync(query);
// grab an array of the first 10 account objects ordered by account name
const rows = tblAccounts.select().top(10).orderBy("Name").rows();