We did two SOLR qeries and they supposed to return the same results but didnot:
Query 1: all_text:(US 4,568,649 A) "parsedquery": "(+((all_text:us ((all_text:4 all_text:568 all_text:649 all_text:4568649)~4))~2))/no_coord", Result: "numFound": 0, Query 2: all_text:(US 4568649) "parsedquery": "(+((all_text:us all_text:4568649)~2))/no_coord", Result: "numFound": 2, We assumed the two return the same result. Our default operator is "AND".