{{'The regex query allows you to use regular expressions to match terms in the field for fulltext searching.' | translate}} {{'A detailed overview of lucene\'s regex engine is available here' | translate}}: Regular expressions in Elasticsearch
{{'A note on anchoring' | translate}}
{{'Lucene’s patterns are always anchored. The pattern provided must match the entire string. For string' | translate}} "abcde":

ab.* {{'will match' | translate}}
abcd {{'will not match' | translate}}