Murmur3 field type and doc_values

Elastic Stack Elasticsearch
1

Hi Guys,

Would it make sense to set "doc_values: enabled" on a murmur3 type field since it’s being used for aggregations?

  • Drew

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2

Here's some info on doc values
http://www.elastic.co/guide/en/elasticsearch/guide/current/doc-values.html#_enabling_doc_values

I'm not sure what a murmur3 field is though, I can see what it is but how
does that relate to ES?

On 26 March 2015 at 10:28, Drew Kutcharian drew@venarc.com wrote:

Hi Guys,

Would it make sense to set "doc_values: enabled" on a murmur3 type field
since it’s being used for aggregations?

  • Drew

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3

Hi Mark,

Thanks for the reply, but I already know what doc_values are. I wanted to see if there is a benefit to setting murmur3 type (which actually extends long type) to doc_values when it comes to doing cardinality aggregations.

  • Drew

On Mar 25, 2015, at 5:17 PM, Mark Walkom markwalkom@gmail.com wrote:

Here's some info on doc values http://www.elastic.co/guide/en/elasticsearch/guide/current/doc-values.html#_enabling_doc_values http://www.elastic.co/guide/en/elasticsearch/guide/current/doc-values.html#_enabling_doc_values

I'm not sure what a murmur3 field is though, I can see what it is but how does that relate to ES?

On 26 March 2015 at 10:28, Drew Kutcharian <drew@venarc.com mailto:drew@venarc.com> wrote:
Hi Guys,

Would it make sense to set "doc_values: enabled" on a murmur3 type field since it’s being used for aggregations?

  • Drew

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4

I'm answering my own question here since I came across this issue on GitHub.

So the correct field options for a murmur3 field are:
"index" : "no",
"doc_values" : true

  • Drew

On Wednesday, March 25, 2015 at 4:28:25 PM UTC-7, Drew wrote:

Hi Guys,

Would it make sense to set "doc_values: enabled" on a murmur3 type field
since it’s being used for aggregations?

  • Drew

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