Progress on new axiom SQL generator

axiom_sql_generator.rb

$LOAD_PATH.unshift './lib'

require 'axiom-sql-generator'

users = Axiom::Relation::Base.new(:users, [[:id, Integer], [:name, String]])

def compile_sql(relation)
  sql_ast = Axiom::SQL::Processor.call(relation)
  sql_str = SQL::Generator.generate(sql_ast)

  sql_str
end

puts compile_sql(users).inspect
# SELECT "id", "name" FROM "users"

puts compile_sql(users.restrict(name: "Piotr")).inspect
# SELECT "id", "name" FROM "users" WHERE ("name" = 'Piotr')

puts compile_sql(users.insert([[1, 'Piotr']])).inspect
# INSERT INTO "users" VALUES (1, 'Piotr')

puts compile_sql(users.delete(users.restrict(id: 1))).inspect
# DELETE FROM "users" WHERE ("id" = 1)