Question on performance

[yhan]

Hi Les! Thanks for your presentation, very helpful.

A question regarding performance. I noticed that even you specify limited fields of your entity, the generated SQL query is fetching all the fields.
ex:

graphQL query:

query {
  platform {
    name
  }
}

generates:

info: 8/22/2021 18:10:09.844 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
      Executed DbCommand (35ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
      SELECT [p].[Id], [p].[LicenseKey], [p].[Name]
      FROM [Platforms] AS [p]

Is there a way to fetching only desired field from DB?