Multi Index

Many of elasticearch APIs support operating across several indices. The format usually includes an index name, or a comma separated index names. It also supports using aliases, or a comma delimited list of aliases and indexes for the APIs.

Using the APIs against all indices is simple by usually either using the _all index, or simply omitting the index.

For multi index APIs (like search), there is also support for using wildcards (since 0.19.8) in order to resolve indices and aliases. For example, if we have an indices test1, test2 and test3, we can simply specify test* and automatically operate on all of them. The syntax also support the ability to add (+) and remove (-), for example: +test*,-test3.