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An Elasticsearch mapping defines a field as float. You index a very large decimal number but notice precision loss. What should you do?

medium📝 Debug Q7 of 15
Elasticsearch - Mappings and Data Types
An Elasticsearch mapping defines a field as float. You index a very large decimal number but notice precision loss. What should you do?
AKeep using float and round the number
BUse the byte type instead
CChange the field type to integer
DChange the field type to double
Step-by-Step Solution
Solution:
  1. Step 1: Understand float precision limits

    Float is a 32-bit floating point type with limited precision, which can cause precision loss for large decimals.
  2. Step 2: Choose a type with higher precision

    Double is a 64-bit floating point type that provides higher precision and reduces precision loss.
  3. Final Answer:

    Change the field type to double -> Option D
  4. Quick Check:

    Precision loss fix = use double [OK]
Quick Trick: Use double for better decimal precision than float [OK]
Common Mistakes:
MISTAKES
  • Rounding instead of changing type
  • Using integer for decimals
  • Choosing byte for large numbers

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