Class: Alf::Shell::Explain

Inherits:
Object
  • Object
show all
Defined in:
lib/alf/shell/command/explain.rb

Instance Method Summary collapse

Instance Method Details

#compile(argv) ⇒ Object 



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# File 'lib/alf/shell/command/explain.rb', line 31

def compile(argv)
  operand(argv.shift)
end

#run(argv, requester) ⇒ Object 



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# File 'lib/alf/shell/command/explain.rb', line 13

def run(argv, requester)
  # set requester and parse options
  @requester = requester
  argv = parse_options(argv, :split)

  operand = compile(argv)

  puts "Logical plan:"
  puts
  puts operand.to_ascii_tree.gsub(/^/, "  ")

  puts

  puts "Physical plan:"
  puts
  puts operand.to_cog.to_ascii_tree.gsub(/^/, "  ")
end