How to filter values with wildcard symbols?

Elastic Stack Elasticsearch
1

Hi. I'm newbee in elasticsearch. My question is what's wrong with the query I'm using:
Model (partially):

{
  "hello_world_index" : {
    "mappings" : {
      "entity" : {
        "dynamic" : "strict",
        "properties" : {
          "employees" : {
            "properties" : {
              "name" : {
                "type" : "text",
                "fields" : {
                  "raw" : {
                    "type" : "keyword"
                  }}}}}}}}}}

Data that exists:

"employees" : [
{
"id" : "2",
"name" : "b?ob*",
"type" : 0
}
],

The query I send:
POST -d ' {"query": {"bool":{"must":[{"bool":{"should":[{"match_phrase_prefix":{"employees.name":{"query":"b?ob*"}}}]}}]}}}'
returns this record fine
But when I use the following queries I expect to see no result:

"query":"b\\*ob"
"query":"\"b*ob"\"

but I get the same data.

2

The problem is that you are using the default analyzer where you should may be not use any.

Try to search in name.raw