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Add doc values support to boolean fields.

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This pull request makes boolean handled like dates and ipv4 addresses: things
are stored as as numerics under the hood and aggregations add some special
formatting logic in order to return true/false in addition to 1/0.

For example, here is an output of a terms aggregation on a boolean field:
```
   "aggregations": {
      "top_f": {
         "doc_count_error_upper_bound": 0,
         "buckets": [
            {
               "key": 0,
               "key_as_string": "false",
               "doc_count": 2
            },
            {
               "key": 1,
               "key_as_string": "true",
               "doc_count": 1
            }
         ]
      }
   }
```

Sorted numeric doc values are used under the hood.

Close #4678
Close #7851
This commit is contained in:
Adrien Grand 2014-10-02 16:16:54 +02:00
parent e390ef5bc1
commit 08f93cf33f
99 changed files with 496 additions and 19 deletions
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3
dev-tools/create-bwc-index.py
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@ -61,7 +61,8 @@ def index_documents(es, index_name, type, num_docs):
for id in range(0, num_docs):
es.index(index=index_name, doc_type=type, id=id, body={'string': str(random.randint(0, 100)),
'long_sort': random.randint(0, 100),
'double_sort' : float(random.randint(0, 100))})
'double_sort' : float(random.randint(0, 100)),
'bool' : random.choice([True, False])})
if rarely():
es.indices.refresh(index=index_name)
if rarely():