[Solved] What is the result of this wildcard query?{ "query": { "wildcard": { "title": { "value": "*book" } } } } | Elasticsearch

Elasticsearch - Basic Search Queries

What is the result of this wildcard query?

{ "query": { "wildcard": { "title": { "value": "*book" } } } }

AMatches documents where title starts with 'book'

BMatches documents where title ends with 'book', like 'notebook'

CMatches documents where title contains 'book' anywhere

DMatches documents where title exactly equals '*book'

Step-by-Step Solution

Solution:

Step 1: Understand wildcard * usage
The asterisk (*) matches zero or more characters. Placed before 'book' means any characters before 'book'.
Step 2: Interpret query
This matches titles ending with 'book', like 'notebook' or 'storybook'.
Final Answer:
Matches documents where title ends with 'book', like 'notebook' -> Option B
Quick Check:
Wildcard * before string = ends with pattern [OK]

Quick Trick: Wildcard * before text means ends with pattern [OK]

Common Mistakes:

MISTAKES

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What is the result of this wildcard query?