Results of search.xml are significantly less than search.json's in NexT search

[pilgrimlyieu]

I used to set path: search.xml as written in the README. However I've been bothered by the search because I can't find some pages in the search results.

When I checked search.xml, I could find the key words and target pages not included in the search result. Then I changed search.xml to search.json and these pages are listed in the result.

So I'm wondering if there's something wrong with the search database of XML format.

I have a large number of posts and pages so please forgive me for not giving example to reproduce this issue. But I think you can have a try changing search.xml to search.json to see if there's difference.

[pilgrimlyieu]

Here're two searching examples.

XML

JSON

---

The key word is included in search.xml but not listed in the result.

JSON result

[TrumanDu]

这个问题是文章内容存在特殊字符，xml无法解析正确，建议使用json.
我感觉xml对字符兼容性有点差。
@stevenjoezhang 建议文档修改默认值为json

The problem is that there are special characters in the content of the article, and the XML cannot be parsed correctly. It is recommended to use json.
I feel that XML has poor character compatibility.
@stevenjoezhang Suggested document modification Default value is json