Function binding_out_append

src/cypher/cypher.c:3113–3126

Process edges: look up target node, filter by label/props, add binding. * `inbound` controls which end of the edge is the target id. */ #1196 (second mechanism): a hop's output buffer must hold EVERY matched * row. max_rows is an OUTPUT-row limit — projection already enforces it — and * WHERE/aggregation run after expansion, so any cap here silently falsifies * results: field-measured, count()

 * only allocation failure stops materialisation (the #601 deadline still
 * bounds time), and match_count stays truthful either way (#627 contract). */
static bool binding_out_append(binding_t **rows, int *count, int *cap, binding_t *nb) {
    if (*count == *cap) {
        int next = *cap > 0 ? *cap * CYP_GROWTH_2 : CYP_GROWTH_10;
        binding_t *grown = realloc(*rows, (size_t)next * sizeof(binding_t));
        if (!grown) {
            binding_free(nb);
            return false;
        }
        *rows = grown;
        *cap = next;
    }
    (*rows)[(*count)++] = *nb;
    return true;
}

static void process_edges(cbm_store_t *store, cbm_edge_t *edges, int edge_count, bool inbound,
                          const cbm_node_pattern_t *target_node, binding_t *b, const char *to_var,