Function build_row

nodedb/src/data/executor/handlers/join/lateral/shared.rs:189–202

Build and optionally project a merged row.

(
    outer: &[u8],
    inner: Option<&[u8]>,
    outer_alias: &str,
    lateral_alias: &str,
    projection: &[JoinProjection],
)

/// Build and optionally project a merged row.
pub(super) fn build_row(
    outer: &[u8],
    inner: Option<&[u8]>,
    outer_alias: &str,
    lateral_alias: &str,
    projection: &[JoinProjection],
) -> Vec<u8> {
    let merged = merge_join_docs_binary(outer, inner, outer_alias, lateral_alias);
    if projection.is_empty() {
        merged
    } else {
        binary_row_project(&merged, projection)
    }
}

/// If `bytes` is a scan-row wrapper `{id: ..., data: ...}`, return the `data`
/// field's bytes. Otherwise return `bytes` as-is (already a plain map).