Using a wildcard query

The wildcard query is used when a part of a term is known. It allows completing truncated or partial terms. They are very famous because they are often for commands on files on system shells (that is, ls *.jpg).

Getting ready

You need an up-and-running Elasticsearch installation as we described in the Downloading and installing Elasticsearch recipe in Chapter 2, Downloading and Setup.

To execute curl via the command line, you need to install curl for your operative system.

To correctly execute the following commands, you need an index populated with the chapter_05/populate_query.sh script available in the online code.

How to do it...

For executing a wildcard query, we will perform the following steps:

1. We execute a wildcard query from the command line:

           curl -XPOST 'http://127.0.0.1:9200/test-index/test-
           type/_search?pretty=true' -d '{
               "query": {
                   "wildcard": {
                       "uuid": "22?2*"
             ...