What is the method for querying data in Elasticsearch?

There are several methods for querying data in Elasticsearch.

1. Simple queries can be performed by using query strings, such as matching specific field values or performing fuzzy matching. This type of query method is the most basic way and supports various query parameters and options.
2. DSL query: Utilize Elasticsearch’s Domain Specific Language (DSL) for constructing intricate queries. The DSL offers a variety of query syntax and operators, allowing for range queries, boolean queries, nested queries, and more.
3. Filter: A filter is a special query method used to restrict query results. Filters allow us to narrow down the query results to a collection of documents that meet specific criteria, without the need for scoring and sorting.
4. Aggregated query: Aggregated query is used to statistically analyze query results. Through aggregated queries, we can calculate averages, maximum values, minimum values, totals, etc. for a document set.
5. Geolocation query: Elasticsearch supports geolocation queries, allowing for searches and filtering based on location information. This type of query is commonly used in geolocation-related applications, such as finding nearby people or defining geographic boundaries.

The above are some commonly used querying methods, Elasticsearch also offers many other features and querying options, choose the suitable querying method based on specific needs.