Statistical facet performance

Elastic Stack Elasticsearch
1

Will indexing value field of statistical and terms_stats facets as stored improve perf ormance?

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2

No

clint

On Wed, Mar 6, 2013 at 5:44 AM, AlexR roytmana@gmail.com wrote:

Will indexing value field of statistical and terms_stats facets as stored
improve perf ormance?

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3

Thanks Clint!

So when terms_stats facet totals this field it will not try to load source it will use indexed values if it is indexed?

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4

Correct, facets will use the field data cache for the values. The values
are cached from the indexed Lucene fields.

If source was used, then the value will need to be analyzed, which would be
more inefficient.

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Ivan

On Wed, Mar 6, 2013 at 11:29 AM, AlexR roytmana@gmail.com wrote:

Thanks Clint!

So when terms_stats facet totals this field it will not try to load source
it will use indexed values if it is indexed?

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5

Thanks Ivan, Clint!

On Wed, Mar 6, 2013 at 4:39 PM, Ivan Brusic ivan@brusic.com wrote:

Correct, facets will use the field data cache for the values. The values
are cached from the indexed Lucene fields.

If source was used, then the value will need to be analyzed, which would
be more inefficient.

--
Ivan

On Wed, Mar 6, 2013 at 11:29 AM, AlexR roytmana@gmail.com wrote:

Thanks Clint!

So when terms_stats facet totals this field it will not try to load
source it will use indexed values if it is indexed?

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