On 3/11/13 6:15 PM, 李威 wrote:
in org.apache.solr.parser.SolrQueryParserBase, there is a function: "protected Query
newFieldQuery(Analyzer analyzer, String field, String queryText, boolean quoted) throws
SyntaxError"
The below code can't process chinese rightly.
" BooleanClause.Occur occur = positionCount > 1 && operator ==
AND_OPERATOR ?
BooleanClause.Occur.MUST : BooleanClause.Occur.SHOULD;
"
For example, “北京市" and “北京" are synonym, if I seach "北京市动物园", the expected parse result is
"+(北京市 北京) +动物园", but actually it would be parsed to "+北京市 +北京 +动物园".
The code can process English, because English word is seperate by space, and
only one position.
An interesting feature of this example is that difference between the two
synonyms is
omission of one token "市" (city). Doesn't the same same problem happen if we
define
"London City" and "London" as synonyms, and execute a query like "London City
Zoo"?
Must Chinese Analyzer be used to reproduce this problem?
I tried to test this but I couldn't. The result of query string expansion using
Solr 4.2's
query interface with debug output shows:
<str name="parsedquery">MultiPhraseQuery(text:"(london london) city zoo")</str>
I see no plus (+). What query parser did you use?
--
Kuro Kurosaka
