[Solved] What will be the output of this runtime field script?{"runtime_mappings": {"double_price": {"type": "double", "script": {"source": "emit(doc['price'].value * 2)"}}}}For a document with price 15.5? | Elasticsearch

Elasticsearch - Advanced Patterns

What will be the output of this runtime field script?

{"runtime_mappings": {"double_price": {"type": "double", "script": {"source": "emit(doc['price'].value * 2)"}}}}

For a document with price 15.5?

A15.5

B31.0

C30

DError: type mismatch

Step-by-Step Solution

Solution:

Step 1: Analyze the script calculation
The script multiplies the price field value by 2 and emits the result as a double.
Step 2: Calculate for price 15.5
15.5 * 2 = 31.0, which matches the double type output.
Final Answer:
31.0 -> Option B
Quick Check:
Price 15.5 doubled = 31.0 [OK]

Quick Trick: Multiply numeric fields and emit result as double for decimals [OK]

Common Mistakes:

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