Comparison between Elasticsearch and RDBMS
In Elasticsearch, index is similar to tables in RDBMS (Relation Database Management System). Every table is a collection of rows just as every index is a collection of documents in Elasticsearch.
The following table gives a direct comparison between these terms−
| Elasticsearch |
RDBMS |
| Cluster |
Database |
| Shard |
Shard |
| Index |
Table |
| Field |
Column |
| Document |
Row |
