Hi, I am getting different results for the following queries.
1. ABST:"spring-elastic"^3 AND SPEC:"internal combustion"^2 OR ABST:"cylinder"^3 2. SPEC:"internal combustion"^2 AND ABST:"spring-elastic"^3 OR ABST:"cylinder"^3 I think the above two queries are similar and will give the same results. I want to know the order of boolean operators. Is there any grouping is applied when fields repeats in the query? By applying the queries to lucene QueryParser, I got the results as 1. +ABST:"spring elastic"^3.0 SPEC:"internal combustion"^2.0ABST:cylinder^ 3.0 2. +SPEC:"internal combustion"^2.0 ABST:"spring elastic"^3.0ABST:cylinder^ 3.0 I have set the QueryParser operator as 'AND'. I was confused by looking on the QueryParser output. Please give me a good explanation, how lucene handling the boolean queries. Thanks, Sonu