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This article introduces the relevant knowledge of "data statistics of which field is not included in solr". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1 solr does not contain content field data query (for statistical purposes)

-content:*

If you are connected to the previous field, the position of the parentheses is important:

TableName:AA AND-(content:*)

Incorrect writing: if (- content:*) has no value

2 data that solr statistics will not be empty. Note that this data indicates that there is this field, but the value of the field is empty, which is essentially different from 1.

-content: ""

Note: the statistics of 2 will not include the data that does not include cotent fields.

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