ElasticSearch返回空桶

返回空桶 发现在上面的响应中的奇怪之处了吗？ Yep, that’s right. We are missing a few months! By default, the date_histogram (and histogram too) returns only buckets that have a nonzero document count. 是的，我们缺失了几个月！默认情况下，dat

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