Is it possible to marshal a dataset? I really mean the Dataset instance
itself, not the result set.
On unmarshalling, the dataset would have to be reassociated with the
database somehow.
To be precise, this is what I wanted:
require 'sequel'
DB = Sequel.sqlite
DB.create_table :t do
primary_key :id
float :f
end
q = DB[:t].filter{ f > 3 }
puts q.sql # => SELECT * FROM `t` WHERE (`f` > 3)
s = Marshal.dump(q)
# fails here, because there's a proc in q, and a database
qq = Marshal.load(s)
# qq.connect DB ?
puts qq.sql # => SELECT * FROM `t` WHERE (`f` > 3)
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