FacetedSearch's facets property has limited amount of buckets

I’ve been using the FacetedSearch functionality successfully. All seems to be working well. The facets property is added to the response returned from the FacetedSearch object. I am able to access a dictionary with lists of buckets (each with appropriate tuple of key, document count and flag).

The problem is that there seems to be a hard limit on the amount of “buckets” (exactly 10 or less). I’m not referring to the results per facet—just the total amount of buckets.

Example Lets assume a search query generates 300 total hits spread over 13 categories for a particular query.

response = blog_search.execute()

total_hit_count = response.hits.total  # 300
accumulated_facets_hit_count = 0
category_count = 0

for category, hit_count, is_selected in response.facets.category:
    accumulated_facets_hit_count += hit_count
    category_count += 1

When checking the results we have the following unexpected results:

 # This will give `category_count 10` instead of expected `category_count 13`
print('category_count: ', category_count)

# This will give `False` instead of expected `True` 
print(accumulated_facets_hit_count == total_hit_count)

Is there a way to increase the limit of amount of buckets?

[WisdomPill]

Ops… I forgot an example on how to set the size parameter on any other parameter as well

from elasticsearch_dsl import TermsFacet

tf = TermsFacet(fields='text', size=10)
print(tf.get_aggregation())

Hope this helps.

[atlasstrategic]

@WisdomPill thank you for your comments. Yeap, according to the docs there exists such a size option.

to define how many term buckets should be returned out of the overall terms list

For my use-case, all search results are grouped within the resulting buckets (showing the top 5 results per bucket). Currently, if the search query produces greater than 10 buckets, some buckets are left out and the user can not see the results related to those buckets. For example, imagine a search produces results within 20 countries. Where a bucket represents a country, the user will only see 10 counties to facet on instead of 20.

Maybe It would be useful to be able to increase the size parameter for TermsFacet?