EMPTY

All functions > CONSTANT > EMPTY

Returns a NULL value of type EMPTY.

Syntax

EMPTY()
sql

Arguments

ParameterTypeRequiredDescription

Returns

A special EMPTY constant value

Notes

  • Represents an empty or absent value
  • Used internally for optional parameters
  • Different from NULL - represents intentional absence
  • Part of the FeatureQL type system
  • Used in function signatures to indicate optional positions
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Last update at: 2025/10/13 10:23:46