Query with multiple time ranges return no data

[ryantxu]

This may be expected, but when I query with multiple time ranges, it gets no results.

Bug report

System info:

Branch	Commit	Version
master	"37992377a55fbc138b2c01edd4deffed64b53989"	"1.0.0"

Steps to reproduce:

1. Index some data

2. Query for one time range:

   SELECT count(field) FROM trend WHERE (time > now() - 10m AND time < now() - 9m)

This gives me 60 samples.

1. Query for another time range:

   SELECT count(field) FROM trend WHERE (time > now() - 5m AND time < now() - 4m)

This also gives me 60 samples

1. Query for both time ranges

   SELECT count(field) FROM trend WHERE (time > now() - 10m AND time < now() - 9m) OR (time > now() - 5m AND time < now() - 4m)

Expected behavior:

I would expect 120 samples -- since we selected over two ranges. Or an error if selecting multiple ranges is not allowed

Actual behavior:

response is OK, but no results

[jwilder]

This is a duplicate of #3290.