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Which of the following JSON snippets correctly demonstrates how to implement search_after for paginating results sorted by timestamp in ascending order?

easy📝 Syntax Q3 of Q15

Elasticsearch - Advanced Patterns

Which of the following JSON snippets correctly demonstrates how to implement search_after for paginating results sorted by timestamp in ascending order?

A{ "size": 10, "search_after": [1627891234567], "sort": [{"timestamp": "asc"}] }

B{ "size": 10, "sort": [{"timestamp": "asc"}], "search_after": [1627891234567] }

C{ "size": 10, "sort": [{"timestamp": "desc"}], "search_after": ["1627891234567"] }

D{ "size": 10, "sort": [{"timestamp": "asc"}], "search_after": "1627891234567" }

Step-by-Step Solution

Solution:

Step 1: Include sort clause
The search_after parameter requires a sort clause to define the order of results.
Step 2: Use an array for search_after values
The value of search_after must be an array matching the sort fields' values from the last document.
Step 3: Match sort order and data types
The sort order must be ascending as specified, and the search_after value should be a number, not a string.
Final Answer:
{ "size": 10, "sort": [{"timestamp": "asc"}], "search_after": [1627891234567] } correctly uses search_after with a numeric array and matching sort order.
Quick Check:
Check for array format and matching sort [OK]

Quick Trick: Always use array for search_after matching sort fields [OK]

Common Mistakes:

MISTAKES

Using a string instead of an array for search_after
Omitting the sort clause when using search_after
Mismatching sort order and search_after values

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