Can you connect a SqlActivity to a JdbcDatabase in Amazon Data Pipeline?

Using Amazon Data Pipeline, I'm trying to use a SqlActivity to execute some SQL on a non-Redshift data store (SnowflakeDB, for the curious). It seems like it should be possible to do that with a SqlActivity that uses a JdbcDatabase. My first warning was when the wysiwyg editor on Amazon didn't even let me try to create a JdbcDatabase, but I plowed on anyway and just wrote and uploaded a Json definition by hand, myself (here's the relevant bit):

{
  "id" : "ExportToSnowflake",
  "name" : "ExportToSnowflake",
  "type" : "SqlActivity",
  "schedule" : { "ref" : "DefaultSchedule" },
  "database" : { "ref" : "SnowflakeDatabase" },
  "dependsOn" : { "ref" : "ImportTickets" },
  "script" : "COPY INTO ZENDESK_TICKETS_INCREMENTAL_PLAYGROUND FROM @zendesk_incremental_stage"
},
{
  "id" : "SnowflakeDatabase",
  "name" : "SnowflakeDatabase",
  "type" : "JdbcDatabase",
  "jdbcDriverClass" : "com.snowflake.client.jdbc.SnowflakeDriver",
  "username" : "redacted",
  "connectionString" : "jdbc:snowflake://redacted.snowflakecomputing.com:8080/?account=redacted&db=redacted&schema=PUBLIC&ssl=on",
  "*password" : "redacted"
}

When I upload this into the designer, it refuses to activate, giving me this error message:

ERROR: 'database' values must be of type 'RedshiftDatabase'. Found values of type 'JdbcDatabase'

The rest of the pipeline definition works fine without any errors. I've confirmed that it activates and runs to success if I simply leave this step out.

I am unable to find a single mention on the entire Internet of someone actually using a JdbcDatabase from Data Pipeline. Does it just plain not work? Why is it even mentioned in the documentation if there's no way to actually use it? Or am I missing something? I'd love to know if this is a futile exercise before I blow more of the client's money trying to figure out what's going on.