Which Analyzer can meet my need in elasticsearch? - elasticsearch

Question

In my situation, my field is like "abc,123", I want it can be searched either "abc" or "123".
my index mapping is just like the code below
{
"myfield": {
"type": "text",
"analyzer": "stop",
"search_analyzer": "stop" }
But when I use es _analyzer API to test, I got the result
{
"tokens": [
{
"token": "abc",
"start_offset": 0,
"end_offset": 3,
"type": "word",
"position": 0
}
]
}
"123" was lost.
If I want to meet my situation, do I need to choose some other analyzer or just to add some special configs?

Answer 1

You need to choose standard analyzer instead as stop analyzer breaks text into terms whenever it encounters a character which is not a letter and removes stop words like 'the'. In your case "abc,123" results in token abc when using stop analyzer. Using standard analyzer it returns abc and 123 as shown below
POST _analyze
{
"analyzer": "standard",
"text": "abc, 123"
}
Output:
{
"tokens": [
{
"token": "abc",
"start_offset": 0,
"end_offset": 3,
"type": "<ALPHANUM>",
"position": 0
},
{
"token": "123",
"start_offset": 5,
"end_offset": 8,
"type": "<NUM>",
"position": 1
}
]
}
EDIT1 Using Simple Pattern Split Tokenizer
PUT my_index
{
"settings": {
"analysis": {
"analyzer": {
"my_analyzer": {
"tokenizer": "my_tokenizer"
}
},
"tokenizer": {
"my_tokenizer": {
"type": "simple_pattern_split",
"pattern": ","
}
}
}
}
}
POST my_index/_analyze
{
"analyzer": "my_analyzer",
"text": "abc,123"
}
Output:
{
"tokens": [
{
"token": "abc",
"start_offset": 0,
"end_offset": 3,
"type": "word",
"position": 0
},
{
"token": "123",
"start_offset": 4,
"end_offset": 7,
"type": "word",
"position": 1
}
]
}