The prefix query is used when only the starting part of a term is known. It allows completing truncated or partial terms.
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.
For executing a prefix query, we will perform the following steps:
We execute a prefix query from the command line:
curl -XPOST 'http://127.0.0.1:9200/test-index/test- type/_search?pretty=true' -d '{ "query": { "prefix": { "uuid": "222" } } }'
The result returned by Elasticsearch, if everything is...