ES cannot search for special characters when using wildcard search

Elastic Stack Elasticsearch
1

Hello,

We are using query_string for a quick search but looks like does not correctly work.

For instance I can find results using:

{
    "query": {
        "query_string": {
            "query": "oleg$qwerty.com",
            "fields": [
                "fullName.search"
            ],
            "minimum_should_match": "100%"
        }
   },
    "size": 10
}

But when I try to use *leg$qwerty.com ES doesn't return results.

Did anyone face this issue before? or can help?

Thank in advacne

2

Which version of Elasticsearch are you using?

What is the mapping for the field you are searching on?

Have you tried analysing this using the analyze API?

3

Hello @Christian_Dahlqvist,

ES version - 8.4.3

Mapping is :

image
image809×169 6.71 KB

image

Yes, i've tried to analyze it, it creates 2 tokens but the difference only in start offset:

image
image1044×521 22.3 KB

4

Hello @polyfractal ,
I found your pretty clear answer related to this topic Wildcard search does not work - #3 by debasisc

But could you take a look at my issue, maybe you have suggestions on this?

Thanks in advance.