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variant_get

vortex_array::expr

Function variant_get 

Source 
pub fn variant_get(
    child: Expression,
    path: impl Into<VariantPath>,
    dtype: Option<DType>,
) -> Expression
Expand description

Creates an expression that extracts a path from a Variant expression.

Missing paths, traversal mismatches, and failed casts return null. When dtype is None, results are nullable Variant values; otherwise results are nullable values of dtype.