Re: Results grouping performance with groups.ngroups=true

I mean, you might probably count the same counts by json facet *instead* slow grouping count, like https://issues.apache.org/jira/browse/SOLR-7036?focusedCommentId=15601789&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15601789 On Sun, Aug 12, 2018 at 7:09 AM Saya

Docvalue v.s. invert index

Could we say that docvalue technique is better for sorting and faceting and inverted index one is better for searching? Will I lose anything if I only use docvalue? Does docvalue technique have better performance? -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html

Re: Docvalue v.s. invert index

> Could we say that docvalue technique is better for sorting and faceting and inverted index one is better for searching? The short answer is yes. In addition, there are several special data structures for numeric/date range/geo spatial search. https://lucene.apache.org/solr/guide/7_4/field-types-

Re: Docvalue v.s. invert index

On 8/12/2018 4:39 AM, Zahra Aminolroaya wrote: Could we say that docvalue technique is better for sorting and faceting and inverted index one is better for searching? Yes.  That is how things work. If docValues do not exist, then an equivalent data structure must be built in heap memory *from

Re: Docvalue v.s. invert index

bq. I have been informed that the performance of such a search is absolutely terrible. Yep. Horrible. These two structures answer completely different questions indexed - "for this word, what docs contain it in field X?" DocValues - "for this document, what is the value of field X?" On my, my us

Re: Docvalue v.s. invert index

My expectation is that scanning Doc Values might be faster than inverted index if a query matches more than %25 of documents. On Sun, Aug 12, 2018 at 7:59 PM Erick Erickson wrote: > bq. I have been informed that the performance of such a search is > absolutely terrible. > > Yep. Horrible. > > Th

Re: Docvalue v.s. invert index

Thanks Erick, Shawn and Tomoko for complete answers. If I set both docvalue and indexed "true" in a field, will Solr understand to use which technique for faceting or searching? Or Is there any way to inform Solr to use which technique? -- Sent from: http://lucene.472066.n3.nabble.com/Solr-Use