Es composite query workload evaluation

1. Problem description

         I have a problem recently ,ES There is one of them. 【 Vehicle type 】 Field of , The product wants to query this field at the same time null And the value is 1 or 2 or 3 Result .

2. Pit point

         The pitfall of this problem is not in writing query logic , It's about ES Compound query if When a query field needs to be added for phase I requirements and this field is not an equivalent query , Be sure to evaluate the workload carefully , Maybe the whole screening structure should be changed ...

3. Solution

         The implementation scheme is very simple , utilize should Combine must not Just fine .