Question

我通过结果集中的TopicID字段对搜索结果进行分组。

但是当我这样做时，Facet计数正在使用该Facet的匹配总数而不是对它们进行分组。是否可以显示组的总数而不是匹配的文档？

我尝试将group.facet设置为true，但是当我这样做时，我没有得到任何结果，我收到错误。

这是我的查询设置

http://localhost:8983/solr/topics/select?defType=edismax&group.field=topic_id&group=true&q=Lens&qf=topic_id%20topic_title%20post_text%20userNameSearch^5&rows=2

这将返回3,066组中的10,770份文件

在我的userName Facet上我有用户名1（10,840）用户名2（374） ....

当我在用户名1上过滤时，我会得到575个包含10,840个文档的组。

我试图在Facet上显示正确的组数而不是总文档数。

当我添加group.facet=true时，我收到以下错误消息

"error":{
    "metadata":[
      "error-class","org.apache.solr.common.SolrException",
      "root-error-class","java.lang.IllegalStateException"],
    "msg":"Exception during facet.field: userName",
    "trace":"org.apache.solr.common.SolrException: Exception during facet.field: userName\r\n\tat org.apache.solr.request.SimpleFacets.lambda$getFacetFieldCounts$0(SimpleFacets.java:840)\r\n\tat java.util.concurrent.FutureTask.run(Unknown Source)\r\n\tat org.apache.solr.request.SimpleFacets$3.execute(SimpleFacets.java:773)\r\n\tat org.apache.solr.request.SimpleFacets.getFacetFieldCounts(SimpleFacets.java:849)\r\n\tat org.apache.solr.handler.component.FacetComponent.getFacetCounts(FacetComponent.java:329)\r\n\tat org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:273)\r\n\tat org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:295)\r\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:195)\r\n\tat org.apache.solr.core.SolrCore.execute(SolrCore.java:2503)\r\n\tat org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:711)\r\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:517)\r\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:384)\r\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:330)\r\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1629)\r\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\r\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)\r\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)\r\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)\r\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)\r\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)\r\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)\r\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\r\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)\r\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)\r\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\r\n\tat org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)\r\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\r\n\tat org.eclipse.jetty.server.Server.handle(Server.java:530)\r\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:347)\r\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:256)\r\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)\r\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)\r\n\tat org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)\r\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)\r\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)\r\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)\r\n\tat org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)\r\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)\r\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)\r\n\tat java.lang.Thread.run(Unknown Source)\r\nCaused by: java.lang.IllegalStateException: unexpected docvalues type NUMERIC for field 'topic_id' (expected=SORTED). Re-index with correct docvalues type.\r\n\tat org.apache.lucene.index.DocValues.checkField(DocValues.java:340)\r\n\tat org.apache.lucene.index.DocValues.getSorted(DocValues.java:392)\r\n\tat org.apache.lucene.search.grouping.TermGroupFacetCollector$SV.doSetNextReader(TermGroupFacetCollector.java:146)\r\n\tat org.apache.lucene.search.SimpleCollector.getLeafCollector(SimpleCollector.java:33)\r\n\tat org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:651)\r\n\tat org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:462)\r\n\tat org.apache.solr.request.SimpleFacets.getGroupedCounts(SimpleFacets.java:723)\r\n\tat org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:497)\r\n\tat org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:426)\r\n\tat org.apache.solr.request.SimpleFacets.lambda$getFacetFieldCounts$0(SimpleFacets.java:834)\r\n\t... 45 more\r\n",
    "code":500}}

Answer 1

每当您为特定字段的组传递查询时，它将返回文档匹配计数的总数。

但是如果你想获得响应中的组总数以及文档匹配，请通过额外的参数。

&group.ngroups=true

如果您在当时传递了上述参数，则还会获得响应中的组计数。

http://localhost:8983/solr/topics/select?defType=edismax&group.field=topic_id&group=true&q=Lens&qf=topic_id%20topic_title%20post_text%20userNameSearch^5&rows=2&group.ngroups=true

你将得到以下重新开始，

grouped: {
 ssub_chain: {
 matches: 4,
 ngroups: 4,
  groups: [
   {
    groupValue: "Momo Junction_10869",
    doclist: {},
   },
   {..},
   {..},
   {..},
  ],
}
},

当组

1 个答案: