Question

聚合函数的正确索引应该是什么，如果我使用的标记值是＆＃39; ID＆＃39; ＆＃39; s_version标记中的标记和字符串值＆＃39;？＆＃39; ID＆＃39;有index-numbers = yes ＆＃39; s_version标记＆＃39;有index = xml

我的聚合查询如下：

$aggregateQuery = 'COUNT(ID) as user_count, s_version as a GROUP BY s_version ORDER BY s_version';

$ response返回错误：

Cannot aggregate unindexed fields
Cannot aggregate fields that have not been indexed. Check your policy and make sure all fields you are aggregating are indexed with appropriate types

Answer 1

您在聚合中使用的标记应该使用index-numbers = yes，index-dates = yes或index = facet（index = xml仅影响路径如何定义某个标记）进行适当的索引。数字标签使用“index-numbers”，日期值使用“index-dates”，字符串使用“index-facet”。

似乎您的“ID”标记已正确编入索引。但对于“s_version”，你应该添加“index = facet”：

<rule>
<xpath>//root_tag/.../s_version</xpath>
<property>index=xml&amp;facet</property>
</rule>

Clusterpoint Cloud中聚合功能的索引不正确

1 个答案: