XXXX在发现的模式中不存在。文件尚未汇入 [英] XXXX does not exist in the discovered schema. Document has not been imported
问题描述
当使用SDP从Cloudant中提取数据并填充dashDB时，我偶尔会在dashdb XXXX_OVERFLOW表中看到如下错误消息：
When using the SDP to extract data from Cloudant and populate dashDB, I occasionally see error messages in the dashdb "XXXX_OVERFLOW" table that look like this:
[XXXX does not exist in the discovered schema. Document has not been imported.]
问题
- 此错误是什么意思？
- 我该如何解决？
推荐答案
此错误类似于：没有用于{ _id： ...， doc：{...} 的匹配模式，因此此处适用相同的答案。
This error is similar to: No matched schema for {"_id":"...","doc":{...}, so the same answer applies here.
SDP流程有两个主要阶段：
There are two main phases to the SDP process:
- 模式分析
- 数据导入
在模式分析阶段，SDP分析Cloudant中的文档样本并使用文档结构
In the schema analysis phase, the SDP analyses a sample of documents in Cloudant and uses the document structures of the sample to infer the target schema in dashDB.
-
当SDP尝试使用以下命令导入文档时，会遇到上述错误：一种在SDP分析阶段未看到的模式。
The above error is encountered when the SDP tries to import a document with a schema that it did not see during the SDP analysis stage.
唯一的选择要解决此问题，请增加样本模式发现期间使用的大小为无限制。
The only option to resolve this is to increase the sample size used during schema discovery to unlimited.
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