Function laminar_schema_field_type 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn laminar_schema_field_type(
    schema: *mut LaminarSchema,
    index: usize,
    out: *mut *mut c_char,
) -> i32

Get the type of a field by index.

Returns the Arrow data type as a string (e.g., “Int64”, “Utf8”, “Float64”).

Arguments

• schema - Schema handle
• index - Field index (0-based)
• out - Pointer to receive type name (caller frees with laminar_string_free)

Returns

LAMINAR_OK on success, or an error code.

Safety

• schema must be a valid schema handle
• index must be less than the number of fields
• out must be a valid pointer