TYPEOF()

All functions > METADATA > TYPEOF()

Returns the type of the given expression in FeatureQL.

Signatures

Returns: A string representing the FeatureQL type name

TYPEOF(expr: T) → VARCHAR

Notes

• Returns the FeatureQL type name as a string
• Useful for dynamic type checking and debugging
• Type is determined at compile time
• Returns FeatureQL-specific type names (e.g., BIGINT, VARCHAR, ARRAY)
• Can be used in conditional logic based on types
• Helps with understanding type inference results

See also

• Metadata functions

Examples

Scalars

SELECT
    f1 := TYPEOF(1), -- Integer literal
    f2 := TYPEOF('hello') -- String literal
;

Containers

SELECT
    f1 := TYPEOF(ARRAY[1, 2]) -- Array type lists the element type
;