Yield hashes with symbol keys, attempting to optimize for various cases.
# File lib/sequel/adapters/tinytds.rb, line 223 def fetch_rows(sql) execute(sql) do |result| columns = result.fields.map!{|c| output_identifier(c)} if columns.empty? args = [] args << {:timezone=>:utc} if db.timezone == :utc cols = nil result.each(*args) do |r| unless cols cols = result.fields.map{|c| [c, output_identifier(c)]} self.columns = columns = cols.map(&:last) end h = {} cols.each do |s, sym| h[sym] = r[s] end yield h end else self.columns = columns if db.timezone == :utc result.each(:timezone=>:utc){|r| yield r} else result.each{|r| yield r} end end end self end