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The Extended DisMax (eDismax) Query Parser – Ultimate Solr Guide

The Extended DisMax (eDisMax) query parser is an improved version of the DisMax query parser. In addition to supporting all the DisMax query parser parameters, Extended Dismax: supports Solr’s standard query parser syntax such as (non-exhaustive list): boolean operators such as AND (+, &&), OR (||), NOT (-). optionally treats lowercase “and” and “or” as “AND” and “OR”…

The Standard Query Parser – Ultimate Solr Guide

Solr’s default Query Parser is also known as the “lucene” parser. The key advantage of the standard query parser is that it supports a robust and fairly intuitive syntax allowing you to create a variety of structured queries. The largest disadvantage is that it’s very intolerant of syntax errors, as compared with something like the DisMax query…