Terms query not working for me

[Fish]

I am pretty new to Easticsearch. So, if my question is stupid, I apologize.

This is my question: I want search documents that have some fields. I have provided code snippet below.

I have a field called "reference number" and I want to retrieve documents whose reference numbers are 1,2 or 3.
When I use 'match', I get the documents for each reference number.

e.g.

GET /_search
{
"query": {
"match" : { "reference number" : 1}
}
}

but when I use terms query, it returns nothing. The code below returns nothing. What am I missing?

GET /_search
{
"query": {
"terms" : { "reference number" : [1,2,3]}
}
}

[dadoonet (David Pilato)]

What does this give:

GET /_search
{
  "query": {
    "term" : { "reference number" : 1}
  }
}

[Fish]

Thanks for your help. It does not return anything. I have noticed that if I use another field both 'term' and 'terms' return the required results. Could this be a problem with the field name?

[dadoonet (David Pilato)]

I don't think so. Most likely a mapping issue.

Could you provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.

A full reproduction script will help readers to understand, reproduce and if needed fix your problem.

[Fish]

You are right. The problem was with the mappig.