Enhance DisMaxQParserPlugin to support full-Solr syntax and to support
alternate escaping strategies.
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Key: SOLR-758
URL: https://issues.apache.org/jira/browse/SOLR-758
Project: Solr
Issue Type: Improvement
Components: search
Affects Versions: 1.3
Reporter: David Smiley
The DisMaxQParserPlugin has a variety of nice features; chief among them is
that is uses the DisjunctionMaxQueryParser. However it imposes limitations on
the syntax.
I've enhanced the DisMax QParser plugin to use a pluggable query string
re-writer (via subclass extension) instead of hard-coding the logic currently
embedded within it (i.e. the escape nearly everything logic). Additionally,
I've made this QParser have a notion of a "simple" syntax (the default) or
non-simple in which case some of the logic in this QParser doesn't occur
because it's irrelevant (phrase boosting and min-should-max in particular). As
part of my work I significantly moved the code around to make it clearer and
more extensible. I also chose to rename it to suggest it's role as a parser
for user queries.
Attachment to follow...
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