Omit unnecessary CHECK constraints in UPDATE statements, when none of the
columns referenced in the CHECK constraint are modified.

FossilOrigin-Name: 02fbdbc782dd98f080bf4482d820f36c0ef3d519
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index ef80e8d..001416d 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -3100,6 +3100,7 @@
     SrcList *pSrcList;                         /* FROM clause */
     struct SrcCount *pSrcCount;                /* Counting column references */
     struct CCurHint *pCCurHint;                /* Used by codeCursorHint() */
+    int *aiCol;                                /* array of column indexes */
   } u;
 };