What Type of Data Can I Store in Elasticsearch?


Angela Bailey

What Type of Data Can I Store in Elasticsearch?

Elasticsearch is a powerful and flexible open-source search and analytics engine. It is designed to be highly scalable and distributed, making it an excellent choice for storing and analyzing large volumes of data.

But what types of data can you store in Elasticsearch? Let’s explore the possibilities.

Structured Data

If you have structured data, such as JSON objects or key-value pairs, Elasticsearch can handle it with ease. You can index this data into Elasticsearch, and it will automatically create mappings based on the structure of your documents. This allows for efficient searching and querying.

Textual Data

Elasticsearch is particularly well-suited for storing and analyzing textual data. Whether you have articles, blog posts, customer reviews, or any other form of text, Elasticsearch’s full-text search capabilities can help you extract valuable insights from your data.

When storing textual data in Elasticsearch, you can take advantage of various text analysis features. These include tokenization (breaking text into individual words), stemming (reducing words to their root form), and stopwords removal (ignoring common words like “the” or “and”). These features enhance search accuracy and relevance.


Suppose you have a collection of customer reviews for a product. By indexing these reviews into Elasticsearch, you can easily find the most frequently mentioned words or phrases. This information could be used to identify common issues or highlight positive aspects of the product.

Numeric Data

In addition to textual data, Elasticsearch supports various numeric data types. Whether it’s integers, floats, dates, or timestamps, you can store and query numeric values efficiently using Elasticsearch’s powerful aggregation capabilities.

For example, if you have sales data, you could aggregate sales by month or year to identify trends and patterns. You could also calculate average sales, maximum or minimum values, or perform statistical analyses on your numeric data.

Geospatial Data

Elasticsearch has built-in support for geospatial data. This means you can store and search for data points associated with specific geographical locations. Whether it’s latitude and longitude coordinates or complex polygons representing areas of interest, Elasticsearch can handle it all.

With geospatial data in Elasticsearch, you can perform various location-based queries. You can find nearby places, calculate distances between points, or filter results within a specific area of interest. This is particularly useful for applications like mapping, geolocation services, or spatial analysis.

Binary Data

Elasticsearch is primarily optimized for text-based data. However, you can also store binary data such as images, PDFs, or any other file format. While Elasticsearch doesn’t provide native support for parsing or analyzing binary content like it does for textual data, it still allows you to index and retrieve binary files efficiently.


When storing binary data in Elasticsearch, it’s important to consider the size of your documents and the available storage capacity. Large binary files can consume significant disk space and impact performance if not properly managed.


Elasticsearch is a versatile tool that can handle various types of data. Whether it’s structured data, textual content, numeric values, geospatial information, or even binary files – Elasticsearch provides powerful indexing and querying capabilities for all these types of data.

By leveraging Elasticsearch’s features and functionalities specific to each type of data, you can unlock valuable insights and make informed decisions based on your data analysis.

So, go ahead and explore the vast possibilities of Elasticsearch for storing and analyzing your data!

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