Only use indexes on expressions to optimize ORDER BY and GROUP BY if the

collation sequence matches. Possible fix for [e20dd54a]. FossilOrigin-Name: 37e1900880b70be6802eaf43b0e568fda709a1dd6083d8be11e5a7a7d1fda41a
2017-08-18 08:29:37 +00:00
parent ceb4b1dbdd
commit 62f6f51ae1
4 changed files with 107 additions and 10 deletions
@@ -3689,7 +3689,7 @@ static i8 wherePathSatisfiesOrderBy(
              continue;
            }
          }
-          if( iColumn>=0 ){
+          if( iColumn!=XN_ROWID ){
            pColl = sqlite3ExprCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
            if( !pColl ) pColl = db->pDfltColl;
            if( sqlite3StrICmp(pColl->zName, pIndex->azColl[j])!=0 ) continue;