ElasticSearch indexing string as integer then getting back the integer value in search result

Question

A team I am working with has a lot of dirty data. Sometimes a field might be a string, sometimes an integer for a particular field in several related Mongo collections. When it's a string, we can always rely on it being a valid integer, so these two work just fine:

PUT index/1
{
    "field": 1
}

PUT index/2
{
    "field": "2"
}

However, the _source field in the latter returns "field" as a string. Cleaning up the source data is not an option for me because it's outside of my authority. So is there a way to have ElasticSearch return "field" consistently as an integer or am I always going to be stuck with getting it back as whatever form it was indexed (integer or string)?

dshockley · Accepted Answer · 2017-08-29 15:41:06Z

3

If you're using ES 5+, you can use an ingest node, and an ingest pipeline which includes a convert processor.

answered Aug 29, 2017 at 15:41

dshockley

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1 Comment

Mike Thomsen Over a year ago

I couldn't find anything else, so I'm going to go with this.

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