Function paimon_read_builder_new_read

bindings/c/src/table.rs:217–257

(
    rb: *const paimon_read_builder,
)

/// `rb` must be a valid pointer from `paimon_table_new_read_builder`, or null (returns error).
#[no_mangle]
pub unsafe extern "C" fn paimon_read_builder_new_read(
    rb: *const paimon_read_builder,
) -> paimon_result_new_read {
    if let Err(e) = check_non_null(rb, "rb") {
        return paimon_result_new_read {
            read: std::ptr::null_mut(),
            error: e,
        };
    }
    let state = &*((*rb).inner as *const ReadBuilderState);
    let mut rb_rust = state.table.new_read_builder();

    // Apply projection if set
    if let Some(ref columns) = state.projected_columns {
        let col_refs: Vec<&str> = columns.iter().map(|s| s.as_str()).collect();
        rb_rust.with_projection(&col_refs);
    }

    // Apply filter if set
    if let Some(ref filter) = state.filter {
        rb_rust.with_filter(filter.clone());
    }

    match rb_rust.new_read() {
        Ok(table_read) => {
            let read_state = TableReadState {
                table: state.table.clone(),
                read_type: table_read.read_type().to_vec(),
                data_predicates: table_read.data_predicates().to_vec(),
            };
            paimon_result_new_read {
                read: box_table_read_state(read_state),
                error: std::ptr::null_mut(),
            }
        }
        Err(e) => paimon_result_new_read {
            read: std::ptr::null_mut(),
            error: paimon_error::from_paimon(e),
        },
    }
}

// ======================= TableScan ===============================