May 2017
Beginner to intermediate
596 pages
15h 2m
English
Content preview from Data Lake for Enterprises
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Elasticsearch and relational database
We did cover Elasticsearch terminologies in detail in the section. However, Elasticsearch and its terminologies are not that different from a database, which is known common to many in the industry now as well. So let's see a comparison, so that whenever these terminologies are used in Elasticsearch, you could relate these to more RDBMS terminologies:
| Elasticsearch Terminology | RDBMS Terminology |
| Node | DB Instance |
| Cluster | DB Cluster |
| Index | Database |
| Type | Table |
| Mapping | Schema |
| Shard | Physical Partition |
| Route | Logical Partition |
| Document | Row |
| Field | Column |
| Elasticsearch DSL (Query DSL) | SQL |
Table 02: Elasticsearch and RDBMS terminologies