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One of the most important features of Elasticsearch is that it tries to get out of your way and let you start exploring your data as quickly as possible. To index a document, you don’t have to first create an index, define a mapping type, and define your fields — you can just index a document and the index, type, and fields will spring to life automatically:
The automatic detection and addition of new types and fields is called dynamic mapping. The dynamic mapping rules can be customised to suit your purposes with:
Index templates allow you to configure the default mappings, settings and aliases for new indices, whether created automatically or explicitly.
Automatic type creation can be disabled per-index by setting the
false in the index settings:
Automatic type creation can also be disabled for all indices by setting an index template: