How can you use source filtering to return only nested fields like comments.text and comments.date in the search response?

hard🚀 Application Q9 of 15

Elasticsearch - Search Results and Scoring

How can you use source filtering to return only nested fields like comments.text and comments.date in the search response?

A{"fields": ["comments.text", "comments.date"]}

B{"_source": {"includes": ["comments.text", "comments.date"]}}

C{"_source": false}

D{"_source": {"excludes": ["comments"]}}

Step-by-Step Solution

Solution:

Step 1: Use dot notation for nested fields
Nested fields are specified using dot notation inside the includes array.
Step 2: Confirm correct source filtering syntax
{"_source": {"includes": ["comments.text", "comments.date"]}} correctly includes only the nested fields comments.text and comments.date.
Final Answer:
{"_source": {"includes": ["comments.text", "comments.date"]}} -> Option B
Quick Check:
Use dot notation in includes array for nested fields [OK]

Quick Trick: Use dot notation in includes array for nested fields [OK]

Common Mistakes:

MISTAKES

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