# File lib/squish.rb, line 377
def toVarQList
  s=[]
  if self.sels[0] =~ /^\*/ 
    return "*" # special case for 'SELECT *' (ie. select all named vars)
  end
  self.sels.each {|q| s.push("?#{q}") } 
  return s.join(", ")
end