How to declare postgresql json/jsonb field with sequel?

问题

I'm stuck with that. Can't find anywhere in docs how to declare such spatial data types as inet and jsonb or json.

ruby 2.4.1, sequel 4.47

Plain ruby script with require 'sequel'.

Declaration such as

DB.create_table :requests do
  primary_key :id
  foreign_key :client_id, :clients
  foreign_key :service_id, :services
  DateTime :created_at, null: false
  DateTime :answered_at, null: false
  JsonBType :request, null: false
end

回答1:

You can use the alternative way of defining columns by using the column method - details can be found here. In your example this becomes:

DB.create_table :requests do
  primary_key :id
  foreign_key :client_id, :clients
  foreign_key :service_id, :services
  DateTime :created_at, null: false
  DateTime :answered_at, null: false
  column :request, :jsonb, null: false
end

来源：https://stackoverflow.com/questions/44784259/how-to-declare-postgresql-json-jsonb-field-with-sequel