# File lib/jdbc_adapter/jdbc_postgre.rb, line 87
    def postgresql_version
      @postgresql_version ||=
        begin
          select('SELECT version()').to_a[0][0] =~ /PostgreSQL (\d+)\.(\d+)\.(\d+)/
          ($1.to_i * 10000) + ($2.to_i * 100) + $3.to_i
        rescue
          0
        end
    end