Function compute_input_arrow_schema 

pub(crate) fn compute_input_arrow_schema(
    metadata: &RegionMetadata,
    batch_schema: &[(ColumnId, ConcreteDataType)],
    read_cols: &ReadColumns,
    json2_rewrite_targets: &Arc<BTreeMap<ColumnId, Json2TargetLayout>>,
) -> SchemaRef

Computes the Arrow schema for input batches.

Panics

Panics if it can’t find the column by the column id in the batch_schema.