Search Mode The two search modes are "Simple" and "Advanced". The simple mode treats all queries at face value. The advanced mode is to execute sophisticated queries use the Lucene Query Parser Syntax. Hence, the following characters have special meaning: + - && || ! ( ) { } [ ] ^ " ~ * ? : \ and if not used properly, will cause query parser exceptions to occur.
It is recommended you only use Wild Card searches ('*', '?'), Fuzzy searches ('~'), Term Boosting ('^'), Grouping ('(', ')'), and the Boolean Operators ("AND", "OR", '+', "NOT", '-'). Field grouping, is not allowed. Range searches of the form { TO } are legal, but aren't really useful. Also, the search result summaries will not be that useful either.
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