如何在solr中按“匹配所有文档"的顺序对结果进行排序?询问 [英] How are results ordered in solr in a "match all docs" query

问题描述

当我使用匹配所有文档"查询"*:*"(星号冒号星号)时，结果如何排序?

When I use a "match all docs" query, '*:*', asterisk colon asterisk, how are the results ordered?

我认为它们是按相关性排序的，但是在这种情况下，相关性是相等的，对吗?那么，有什么计划?

I presume they get ordered by relevancy, but the relevancy is equal in this case, right? So then, what's the scheme?

推荐答案

当两个文档的分数相同时，Lucene会按索引顺序对它们进行排序(第一个先被索引)，以便运行两次查询将返回索引中的文档.相同的顺序.

When two documents have the same score, Lucene sorts them by index order (the first which has been indexed first) so that running a query twice returns documents in the same order.

由于 MatchAllDocsQuery 给出了所有文档的分数均保持不变，它将按索引顺序返回它们.

Since MatchAllDocsQuery gives a constant score to all documents, it returns them in index order.

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