Return unique records for a certain field

Elastic Stack Elasticsearch
1

I have the following problem, I have a document say

foo {
bar:1
--other fields--
}

I want to call a query that will return results based on other fields but
with bar been unique at the result set, meaning if there are more then 1
document matching the query that has bar == 1 I want to return only 1
results, say the first result.

This is like doing a group by and only taking the first record at the each
group

How can I do this in Elastic?

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2

From what I can understand, you are probably looking for something like
field collapsing, which is not (yet?) implemented in elasticsearch.

Can you provide an pseudo-example with a sample document and query?

--
Ivan

On Sat, Jun 1, 2013 at 12:48 AM, David MZ david.mazvovsky@gmail.com wrote:

I have the following problem, I have a document say

foo {
bar:1
--other fields--
}

I want to call a query that will return results based on other fields but
with bar been unique at the result set, meaning if there are more then 1
document matching the query that has bar == 1 I want to return only 1
results, say the first result.

This is like doing a group by and only taking the first record at the each
group

How can I do this in Elastic?

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"elasticsearch" group.
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