momo0313 commented on issue #4893:
URL: https://github.com/apache/skywalking/issues/4893#issuecomment-642552416
The standard analyzer supports `/` and `-`, while `.` and `_` are not
support. There is an example
```
GET _analyze
{
"text": "/xyz/a/tmo,pp-abd_def/QA0203.940"
}
```
The above sentence would produce the following terms:
`xyz`,`a`, `tmo`, `pp`, `abc_def`, `qa0203.940`
Although, in this case, we have to query some strings like "abc_def" or
"qa0203.940" to get the right results, it's better than the case we can not
query it by numbers. Actually, we usually copy and paste the complete endpoint
and query it, so the `_` and `.` may not be a problem.
Do not think we need to customize any stopwords, any words like `a`,
`the`.. are significant in the endpoint, service name, instance name and so on.
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