Dynamic vs. Explicit Mappings

When you put data into Elasticsearch, it needs to know what kind of data each field holds. This definition is called a mapping.

Think of a mapping as the schema for your documents, similar to a table schema in a traditional database.

There are two main ways Elasticsearch handles mappings: dynamic (automatic) and explicit (manual).

Dynamic mapping is Elasticsearch's default behavior. It's like an intelligent assistant that tries to guess the data type of new fields automatically.

When you index a document with a new field that Elasticsearch hasn't seen before, it analyzes the field's value and assigns a default mapping to it.