NULL results in SQL (Re: sql_null in Roxen 5.0)

[Martin Nilsson (Opera Mini - AFK!) @ Pike (-) developers forum]

1. Keep this out of 7.8.

2. I'd much rather see Sql.NULL, with as little fuss as possible e.g.

Sql.pmod/module.pmod:

object NULL = Pike.Null();


Pike.pmod/module.pmod:

class Null
{
  constant is_null = 1;

  int _encode() { return 0; }
  void _decode(int zero) { }
}