Function laminar_batch_export_column 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn laminar_batch_export_column(
    batch: *mut LaminarRecordBatch,
    column_index: usize,
    out_array: *mut FFI_ArrowArray,
    out_schema: *mut FFI_ArrowSchema,
) -> i32

Export a single column from a RecordBatch to the Arrow C Data Interface.

Arguments

• batch - Record batch containing the column
• column_index - Zero-based index of the column to export
• out_array - Pointer to caller-allocated ArrowArray struct
• out_schema - Pointer to caller-allocated ArrowSchema struct

Returns

LAMINAR_OK on success, or an error code.

Safety

• batch must be a valid batch handle
• column_index must be less than the number of columns
• out_array and out_schema must be valid pointers
• Caller must eventually call the release callbacks