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Overview
| Comment: | Correctly handle COLLATE operators applied to COLLATE operators in an ORDER BY clause. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
9e1f837b08facbc7a2b6196770599a58 |
| User & Date: | drh 2015-04-15 05:57:50 |
Context
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2015-04-15
| ||
| 06:45 | Fix a faulty assert() statement in the name resolver associated with the optimization that converts compound selects with ORDER BY COLLATE into subqueries. check-in: c72324ef user: drh tags: trunk | |
| 05:57 | Correctly handle COLLATE operators applied to COLLATE operators in an ORDER BY clause. check-in: 9e1f837b user: drh tags: trunk | |
| 05:38 | Fix a faulty assert() in the sqlite3StrAccumAppend() routine. check-in: 998cfdb8 user: drh tags: trunk | |
Changes
Changes to src/resolve.c.
990 990 Expr *pNew = sqlite3Expr(db, TK_INTEGER, 0); 991 991 if( pNew==0 ) return 1; 992 992 pNew->flags |= EP_IntValue; 993 993 pNew->u.iValue = iCol; 994 994 if( pItem->pExpr==pE ){ 995 995 pItem->pExpr = pNew; 996 996 }else{ 997 - assert( pItem->pExpr->op==TK_COLLATE ); 998 - assert( pItem->pExpr->pLeft==pE ); 999 - pItem->pExpr->pLeft = pNew; 997 + Expr *pParent = pItem->pExpr; 998 + assert( pParent->op==TK_COLLATE ); 999 + while( pParent->pLeft->op==TK_COLLATE ) pParent = pParent->pLeft; 1000 + assert( pParent->pLeft==pE ); 1001 + pParent->pLeft = pNew; 1000 1002 } 1001 1003 sqlite3ExprDelete(db, pE); 1002 1004 pItem->u.x.iOrderByCol = (u16)iCol; 1003 1005 pItem->done = 1; 1004 1006 }else{ 1005 1007 moreToDo = 1; 1006 1008 }
Changes to test/collate1.test.
381 381 382 382 INSERT INTO c1 VALUES(2, 'abb'); 383 383 INSERT INTO c1 VALUES(3, 'wxz'); 384 384 INSERT INTO c1 VALUES(4, 'WXY'); 385 385 SELECT x, y FROM c1 ORDER BY y COLLATE """"""""; 386 386 } {2 abb 1 ABC 4 WXY 3 wxz} 387 387 388 -finish_test 388 +# 2015-04-15: Nested COLLATE operators 389 +# 390 +do_execsql_test 7.0 { 391 + SELECT 'abc' UNION ALL SELECT 'DEF' 392 + ORDER BY 1 COLLATE nocase COLLATE nocase COLLATE nocase COLLATE nocase; 393 +} {abc DEF} 394 +do_execsql_test 7.1 { 395 + SELECT 'abc' UNION ALL SELECT 'DEF' 396 + ORDER BY 1 COLLATE nocase COLLATE nocase COLLATE nocase COLLATE binary; 397 +} {DEF abc} 398 +do_execsql_test 7.2 { 399 + SELECT 'abc' UNION ALL SELECT 'DEF' 400 + ORDER BY 1 COLLATE binary COLLATE binary COLLATE binary COLLATE nocase; 401 +} {abc DEF} 389 402 390 403 404 +finish_test