Postgresql compatibility

Hi!
Thanks for module - he's good for me, but there are one issue with Postgresql . " is used for special cases when field name contains national character or whitespaces, or field name is the reserved keyword (such as order or date or integer) (as SQL standart says). Mysql broke this rule and this kind of issue have many modules. Please, use ' character (or escaping them with php strings -- \') for strings in SQL queries. Sorry for my English. I use it very-very little. I hope, that you can understand me :)