Description: The term ‘Multi-Index’ in the context of Elasticsearch refers to operations or queries involving multiple indices within the database. This functionality allows users to perform searches and data analysis that are distributed across different indices, facilitating the retrieval of information more efficiently and effectively. Indices in Elasticsearch are structures that store documents, and each can contain different types of data. By using the Multi-Index approach, users can combine data from several indices in a single query, resulting in greater flexibility and power in analyzing large volumes of information. This capability is particularly useful in environments where data is generated and stored in different categories or sources, allowing for a more holistic view of the information. Additionally, the use of Multi-Index optimizes query performance, as Elasticsearch can parallelize operations across the selected indices, thus improving response speed and efficiency in data management.
