Index: src/where.c
==================================================================
--- src/where.c
+++ src/where.c
@@ -4527,14 +4527,11 @@
     /* Generate auto-index WhereLoops */
     WhereTerm *pTerm;
     WhereTerm *pWCEnd = pWC->a + pWC->nTerm;
     for(pTerm=pWC->a; rc==SQLITE_OK && pTerm<pWCEnd; pTerm++){
       if( pTerm->prereqRight & pNew->maskSelf ) continue;
-      if( pTerm->prereqRight==0
-       && sqlite3ExprIsConstant(pTerm->pExpr->pRight) ){
-        continue;
-      }
+      if( sqlite3ExprIsConstant(pTerm->pExpr->pRight) ) continue;
       if( termCanDriveIndex(pTerm, pSrc, 0) ){
         pNew->u.btree.nEq = 1;
         pNew->u.btree.nSkip = 0;
         pNew->u.btree.pIndex = 0;
         pNew->nLTerm = 1;