Apache Solr Reference Guide Covering Apache Solr 6.0

field.
For example, suppose an index contains two fields, title and text,and that text is the default field. If you want to
find a document called "The Right Way" which contains the text "don't go this way," you could include either of
the following terms in your search query:
title:"The Right Way" AND text:go
title:"Do it right" AND go
Since text is the default field, the field indicator is not required; hence the second query above omits it.
The field is only valid for the term that it directly precedes, so the query title:Do it right will find only "Do"
in the title field. It will find "it" and "right" in the default field (in this case the text field).
Boolean Operators Supported by the Standard Query Parser
Boolean operators allow you to apply Boolean logic to queries, requiring the presence or absence of specific
terms or conditions in fields in order to match documents. The table below summarizes the Boolean operators
supported by the standard query parser.
Boolean
Operator
Alternative
Symbol
Description
AND && Requires both terms on either side of the Boolean operator to be present for a
match.
NOT ! Requires that the following term not be present.
OR || Requires that either term (or both terms) be present for a match.
+ Requires that the following term be present.
- Prohibits the following term (that is, matches on fields or documents that do not
include that term). The - operator is functionally similar to the Boolean operator !.
Because it's used by popular search engines such as Google, it may be more
familiar to some user communities.
Boolean operators allow terms to be combined through logic operators. Lucene supports AND, " + ", OR, NOT and
"-" as Boolean operators.
When specifying Boolean operators with keywords such as AND or NOT, the keywords must appear in
all uppercase.
The standard query parser supports all the Boolean operators listed in the table above. The DisMax
query parser supports only + and -.
The OR operator is the default conjunction operator. This means that if there is no Boolean operator between
two terms, the OR operator is used. The OR operator links two terms and finds a matching document if either of
the terms exist in a document. This is equivalent to a union using sets. The symbol || can be used in place of the
word OR.
To search for documents that contain either "jakarta apache" or just "jakarta," use the query:
"jakarta apache" jakarta
or
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