Merge integrity_check and other improvements from trunk.
FossilOrigin-Name: fe073905081b421405ca425ca03c5b8b0ff5f2c8
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 19c7481..fddfe2a 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -1889,6 +1889,7 @@
#define TF_OOOHidden 0x0080 /* Out-of-Order hidden columns */
#define TF_StatsUsed 0x0100 /* Query planner decisions affected by
** Index.aiRowLogEst[] values */
+#define TF_HasNotNull 0x0200 /* Contains NOT NULL constraints */
/*
** Test to see whether or not a table is a virtual table. This is