lucene - Solr 如何使用 DataImportHandler 删除物理删除的文档

Question

我已经阅读了 solr wiki，我知道可以使用 deletedPkQuery 删除逻辑删除的文档，但是如何使用 DataImportHandler 删除物理删除的文档？

Answer 1

You can do it by optimizing the index. Send an optimize request to Solr as described here. But beware, that optimizing the index means re-writing the index. Unless you have substantial number of deleted documents in the index, the overhead of optimizing can be quite high.