[Why] We need only get specific keyword instead of entire document. it's like SQL: SELECT DISTINCT column FROM table Signed-off-by: Lu Weitao <luweitaobe@163.com> --- lib/es_query.rb | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/lib/es_query.rb b/lib/es_query.rb index 3bea624..0e34bfc 100644 --- a/lib/es_query.rb +++ b/lib/es_query.rb @@ -61,6 +61,31 @@ class ESQuery return result[0]['_source'] end + + # select doc_field from index + # input: + # eg: suite (@index: jobs) + # output: + # [ + # {"key"=>"build-pkg", "doc_count"=>90841}, + # {"key"=>"cci-depends", "doc_count"=>4636}, + # {"key"=>"cci-makepkg", "doc_count"=>3647}, + # ... + # ] + def query_specific_fields(field) + query = { + aggs: { + "all_#{field}" => { + terms: { field: field, size: 1000 } + } + }, + size: 0 + } + result = @client.search(index: @index + '*', body: query)['aggregations']["all_#{field}"]['buckets'] + return nil if result.empty? + + result + end end # Range Query Example: -- 2.23.0