'limit' does not seem to work correctly

[william-p]

Hi,
when i use limit with where, limit is applied before where filter.

For reproduce you can use this snippet: https://gist.github.com/william-p/c200a8b122bc7954790b

Test1:
 + Query: 'select * from hosta'
 + Nb points: 40

Test2:
 + Query: 'select * from hosta where source == 'all''
 + Nb points: 10

Test3:
 + Query: 'select * from hosta where source == 'all' limit 5'
 + Nb points: 2

Thanks