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以下是我的Solr 4.7.2使用或者與連接查詢結果導致NullPointerException異常
brands {id, brand_name}
products {id, product_name, brand_id}
以下配置的樣本文件和字段的數據索引
BRANDS: {1, Apple}, {2, Samsung}, {3, HTC}
PRODUCTS: {10, iPhone, 1}, {11, iPad, 1}, {12, Galaxy S3, 2}, {13, Galaxy Note, 2}, {14, Desire, 3}
我試圖讓所有brand_name爲「Samsung」或product_name爲「Desire」的產品
brand_name:Samsung OR {!join from=brand_id to=id} product_name:Desire
Bu我得到錯誤說
ERROR [SolrDispatchFilter] null:java.lang.NullPointerException: while trying to invoke the method org.apache.lucene.search.Query.hashCode() of a null object loaded from field org.apache.solr.search.JoinQuery.q of an object loaded from local variable 'this'
at org.apache.solr.search.JoinQuery.hashCode(JoinQParserPlugin.java:594)
at org.apache.lucene.search.BooleanClause.hashCode(BooleanClause.java:99)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at org.apache.lucene.search.BooleanQuery.hashCode(BooleanQuery.java:520)
at org.apache.solr.search.QueryResultKey.<init>(QueryResultKey.java:47)
at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1305)
at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:476)
at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:461)
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:217)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1916)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:768)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:415)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:205)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:812)
什麼是正確的方式來使用OR與連接查詢結果？我也想用OR對多個連接結果進行分組。
喜歡的東西下面的查詢
（字段1：值1或場：數值2或場3：值3或{！從= SOME_ID加盟= some_other_id}字段4：VALUE4或{！加入來自= some_field_is到= some_other_field_id}字段5 ：value5） AND field7：value7 AND datefield1：{* TO 2015-11-30T14：28：11Z} AND datefield2：{2015-11-30T14：28：11Z TO *}
請建議是否有其他方法是否有這樣做。