CODEWITHSUNDEEP
elasticsearchelastic-stack
Raoot
Raoot

Reputation: 1771

Elasticsearch transform on search?

I've an issue with data in my Elastic index where certain string fields contain differing values that should be the same. For example X-Box, X Box and XBox.

I realise that I could add some transforms to my mappings, but it's not really appropriate in the case as we have data coming in from many sources and the values are unknown until we have received them.

Is it possible to define something like a transform but on search? For example, user searches 'XBox' but because we have defined it (after having discovered the variances) Elastic knows to also return documents for 'X-Box and XBox'?

Hope that makes sense? Thanks in advance.

Upvotes: 0

Views: 149

Answers (1)

Vineeth Mohan
Vineeth Mohan

Reputation: 19273

Synonym filter is what you are looking for. It can map variants to a common name. You can refer to this blog for creating analyzer. Just use the format as shown below - 

{
    "filter" : {
        "synonym" : {
            "type" : "synonym",
            "synonyms" : [
                "X-box, x box => xbox",
                "universe, cosmos"
            ]
        }
    }
}

Upvotes: 1

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