August 2019
Intermediate to advanced
560 pages
13h 41m
English
Content preview from Advanced Elasticsearch 7.0
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date_range
This is similar to the date range aggregation. The difference is using Date Math expression (please refer to the API conventions section of Chapter 1, Overview of Elasticsearch 7) for the from/to range. Note that the from value is inclusive and the to value is exclusive:
- Example: The purpose is to demonstrate the number trading days of the ACWF ETF within different date ranges specified by from/to in the cf_etf_hist_price index:
"query": { "match": { "symbol": "ACWF"}},"aggs":{"monthly_trading_days": {"date_range":{"field": "date","format": "yyyy-MM-dd","ranges": [{"from":"2018-12-01"},{"to":"2019-04-01"},{"from":"2019-01-01","to":"2019-01-01||+1M"}]}}}
- Resulting buckets: Same as the result in the ranges aggregation.
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