Index: src/where.c
==================================================================
--- src/where.c
+++ src/where.c
@@ -2033,13 +2033,13 @@
** considering the range constraints. If nEq is 0, this is the number of
** rows in the index. Assuming no error occurs, *pnOut is adjusted (reduced)
** to account for the range contraints pLower and pUpper.
**
** In the absence of sqlite_stat4 ANALYZE data, or if such data cannot be
-** used, each range inequality reduces the search space by a factor of 4.
-** Hence a pair of constraints (x>? AND x? AND x123" Might be NULL */