Index: src/where.c
==================================================================
--- src/where.c
+++ src/where.c
@@ -1891,11 +1891,11 @@
         Expr *pX = pTerm->pExpr;
         idxCols |= cMask;
         pIdx->aiColumn[n] = pTerm->u.leftColumn;
         pColl = sqlite3BinaryCompareCollSeq(pParse, pX->pLeft, pX->pRight);
         assert( pColl!=0 || pParse->nErr>0 );
-        pIdx->azColl[n] = pColl ? pColl->zName : "BINARY";
+        pIdx->azColl[n] = ALWAYS(pColl) ? pColl->zName : "BINARY";
         n++;
       }
     }
   }
   assert( (u32)n==pLevel->plan.nEq );