On 1/13/2016 5:40 AM, sara hajili wrote:
> what is exactly diffrence between sapce and OR in solr query  ?
> i mean what is diffrence  between
> q = solr OR lucene OR search
> and this
> q = solr lucene search?
>
> solr default boolean occurence is OR,isn't it?

This depends on what the default operator is.  The default for the
default operator is OR, and that would produce exactly the same results
for both of the queries you have mentioned.  If the default operator is
AND, then those two queries would be different.

The default operator applies to the lucene and edismax parsers.  The
lucene parser is Solr's default.  In older versions, the default
operator could be set by a defaultOperator parameter.  I do not remember
whether that was in solrconfig or schema.  That parameter is deprecated
and the q.op parameter should be used now.

Thanks,
Shawn

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