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You have stored queries with different filters on a tags array field. How can you use a percolate query to find all queries matching a document with tags ["news", "sports"]?

hard🚀 Application Q9 of Q15

Elasticsearch - Advanced Patterns

You have stored queries with different filters on a tags array field. How can you use a percolate query to find all queries matching a document with tags ["news", "sports"]?

A{ "percolate": { "field": "query", "document": { "tags": ["news", "sports"] } } }

B{ "query": { "percolate": { "field": "query", "document": { "tags": "news sports" } } } }

C{ "query": { "match": { "tags": ["news", "sports"] } } }

D{ "query": { "percolate": { "field": "query", "document": { "tags": ["news", "sports"] } } } }

Step-by-Step Solution

Solution:

Step 1: Provide the document with tags as an array
The document must include the 'tags' field as an array matching stored queries.
Step 2: Use the percolate query inside the 'query' key
The percolate query must be wrapped inside 'query' with correct 'field' and 'document'.
Final Answer:
{ "query": { "percolate": { "field": "query", "document": { "tags": ["news", "sports"] } } } } -> Option D
Quick Check:
Percolate with array fields = Correct document format [OK]

Quick Trick: Pass arrays as arrays in document for percolate queries [OK]

Common Mistakes:

MISTAKES

Passing array as space-separated string
Omitting 'query' wrapper
Using 'match' query instead of percolate

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