LGTM.

diff --git a/src/box/sql/insert.c b/src/box/sql/insert.c

index 3c3bf37..4f52fa5 100644

--- a/src/box/sql/insert.c

+++ b/src/box/sql/insert.c

@@ -1869,7 +1869,7 @@ xferOptimization(Parse * pParse, /* Parser context */

   * table (tab1) is initially empty.

   */

 

- /* The Vdbe we're building*/

+ /* The Vdbe struct we're building. */

You misunderstood me. What I mean is:

struct Vibe *v = …;

  Vdbe *v = sqlite3GetVdbe(pParse);