Comparison of elasticsearch and relational database concepts

 

Compared with the traditional relational database concept:

 

In Elasticsearch,

An Elasticsearch cluster can contain multiple indexes (databases),

Each index in turn contains multiple types (tables),

Each type contains multiple documents (rows),

Each document has multiple fields (columns).

 

 

RDS- > Database ->  Tables  -> Rows ---------> columns

ES    -> Indices     ->  Types  -> Documents  -> Fields