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请帮助我将以下SQL查询转换为Solr查询。需要帮助将SQL查询转换为Solr查询
SELECT PolicyNumber,EndorsementNumber
FROM Policy_Core a
WHERE AgencyCode = '500'
AND PolicyNumber = 5201070001753
AND EndorsementNumber = (SELECT MAX (EndorsementNumber)
FROM Policy_Core b
WHERE a.PolicyNumber = b.PolicyNumber).
我在Solr服务器中有一个内核具有以下结构。
id (Unique ID) PolicyNumber(Number), EndorsementNumber(Number), AgencyCode(Number)
5201070001753-1 5201070001753 ,1 ,500
5201070001753-2 5201070001753 ,2 ,500
5201070001753-3 5201070001753 ,3 ,500
5201070001753-4 5201070001753 ,4 ,100
5201070001753-5 5201070001753 ,5 ,100
我准备了以下Solr查询。
http://localhost:8983/solr/db/select?q=PolicyNumber:5201070001753 AND AgencyCode:500 &fq={!collapse field=PolicyNumber max=EndorsementNumber}
这会返回错误的结果(因为它正在做结果分组)。根据定义的核心记录,我期待Null/No结果,但是我得到一个记录,其中EndorsementNumber no 3。 Solr执行以下查询。我需要帮助创建solr查询以使Joel POlicy核心与它自己一起获得PolicyNumber的max EndorsementNumber
SELECT PolicyNumber,EndorsementNumber
FROM Policy_Core a
WHERE AgencyCode = '500'
AND PolicyNumber = 5201070001753
GROUP BY PolicyNumber,EndorsementNumber HAVING EndorsementNumber = MAX(EndorsementNumber)
你看着这个链接? https://wiki.apache.org/solr/Join检查“与SQL比较”部分 – jay 2014-10-06 00:42:01