elasticsearchHow can I use regular expressions with Elasticsearch?
Regular expressions (regex) can be used in Elasticsearch to search for patterns in strings. The regexp query can be used to match a regular expression against all fields in a document or against a specific field.
Example code block:
GET /_search
{
"query": {
"regexp": {
"title": ".*Elastic.*"
}
}
}
This example will return all documents that contain the string "Elastic" in the title field.
The regexp query has several parameters that can be used to refine the search:
flags
- This parameter allows you to set flags for the regular expression. For example,flags
can be set to"ALL"
to enable case-insensitive matching.max_determinized_states
- This parameter allows you to set the maximum number of states that can be generated for the regular expression.rewrite
- This parameter allows you to specify how the regular expression should be rewritten.
Helpful links
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- How do I set up an Elasticsearch Yum repository?
- How do I use an elasticsearch query builder?
- How can I integrate Elasticsearch into a Yii2 application?
- How can I use Yandex Mirror to access Elasticsearch data?
- How can I use an Elasticsearch tokenizer?
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