Hello,

 

I'm having a problem with a query but I don't understand what is wrong
with it.  Can someone explain the following?

 

Here are a few queries that work as expected (premium is a boolean
field):

 

 

premium:"false"        ->3004

premium:"true"         ->0

 

-premium:"false"       -> 0

-premium:"true"        -> 3004

 

-premium:"true" AND premium:"false"            -> 3004

 

Here's where it stops working as expected

 

(-premium:"true") AND premium:"false"          -> 0

 

The only difference is an extra set of parenthesis around the NOT
clause.  Is this invalid?

 

Thanks,
Laurent Vauthrin

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