1 files changed, 3 insertions, 0 deletions
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index 6d36f7280..a6798e62d 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -1306,6 +1306,9 @@ void sqlite3VdbeChangeP5(Vdbe *p, u16 p5){
 */
 void sqlite3VdbeTypeofColumn(Vdbe *p, int iDest){
   VdbeOp *pOp = sqlite3VdbeGetLastOp(p);
+#ifdef SQLITE_DEBUG
+  while( pOp->opcode==OP_ReleaseReg ) pOp--;
+#endif
   if( pOp->p3==iDest && pOp->opcode==OP_Column ){
     pOp->p5 |= OPFLAG_TYPEOFARG;
   }