Chapter 2. What is an Elasticsearch Index
In the previous chapter, we looked at what the difference is when a field becomes indexed and searchable and at how the analysis process affects the relevant search results. In this chapter, we will dive deep into the concept of the Elasticsearch index. Therefore, we will first go through basic concepts. Then we will examine the inverted index data structure. By the end of this chapter, we will have covered the following topics:
- What is dynamic mapping?
- What is denormalization?
- Is index flexible?
- What is the inverted index?
Nature of the Elasticsearch index
Let's go through the basic concepts of Elasticsearch indices and their features.
Indices
Elasticsearch is document-oriented. Each record in Elasticsearch is ...
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