Elasticsearch - Mappings and Data Types
Why does Elasticsearch store keyword fields without analysis, and what is the impact on search and aggregation?
Why does Elasticsearch store keyword fields without analysis, and what is the impact on search and aggregation?
hard🧠 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand keyword field storage
Keyword fields store exact values without analysis to preserve original content.Step 2: Impact on search and aggregation
This allows exact match queries and efficient aggregations on those fields.Final Answer:
Keyword fields are stored as-is to allow exact match and efficient aggregations -> Option CQuick Check:
Keyword fields = exact match + aggregations [OK]
Quick Trick: Keyword fields store exact values for matches and aggregations [OK]
Common Mistakes:
MISTAKES- Thinking keyword fields are analyzed
- Assuming keyword fields can't be searched
- Confusing keyword with numeric fields
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