Fix a problem with the sorting of literals in a compound query. Ticket #1501. (CVS 2770)

FossilOrigin-Name: b3882b434a1ef7d8d636c7c5917b9e8f0d2952fb

manifest

@@ -1,5 +1,5 @@
-C Do\snot\sallow\saggregate\sfunctions\sin\sa\sWHERE\sclause.\s\sTicket\s#1514.\s(CVS\s2769)
-D 2005-11-16T12:53:15
+C Fix\sa\sproblem\swith\sthe\ssorting\sof\sliterals\sin\sa\scompound\squery.\sTicket\s#1501.\s(CVS\s2770)
+D 2005-11-16T13:47:51
 F Makefile.in 12784cdce5ffc8dfb707300c34e4f1eb3b8a14f1
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -64,7 +64,7 @@ F src/pragma.c b40189967155a522433b8470f363192a927ba22c
 F src/prepare.c fc098db25d2a121affb08686cf04833fd50452d4
 F src/printf.c 3ea3a17d25d7ac498efc18007c70371a42c968f8
 F src/random.c 90adff4e73a3b249eb4f1fc2a6ff9cf78c7233a4
-F src/select.c 095d5b7a9c1989f2855d496d49096559fa67710d
+F src/select.c 4a9e5366f4a16bd2e6e93c05f585633887be6372
 F src/shell.c 3596c1e559b82663057940d19ba533ad421c7dd3
 F src/sqlite.h.in 8e648e1f386e4509f2f96c09ded7c07b0df0c9a2
 F src/sqliteInt.h 4148c9778e350014c2e27b332d7a2ef7278fe62e
@@ -226,6 +226,7 @@ F test/tkt1443.test 1e83b6a1e7f6e261682e67106ab3bc05f6c70e90
 F test/tkt1444.test 5ef55d36dba1a39a96c728a519e66378a6f6816f
 F test/tkt1449.test f8de8a84ec12ee805ed80055e1209560f8bee4d8
 F test/tkt1473.test e4637c27d606fd002de78113a8e1a142e48ffb18
+F test/tkt1501.test 0cf859299f0052ecfaf7db6f0984f122c7db5d15
 F test/tkt1512.test 8efd8d07e27e99d7462f75b5711de65eb7708baf
 F test/tkt1514.test baa587a69fa2e8d575ebdaf1460f711281dcba49
 F test/trace.test 9fd28695c463b90c2d32c387a432e01eb26e8ccf
@@ -318,7 +319,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 2e195e96bcbad104da09ebe6cef617e0e9ef1884
-R ffdeff6933e9c8149230cb664075bfe1
+P bb866ed880c33ec9ce6ded8ebdbb459fedf9c257
+R 7c9a33e45e816665be15765531c18711
 U drh
-Z b747cc0c814ab502d11e59e2f8d36ee2
+Z aa3c54ef29f09c5fa4da147679eb55f1

manifest.uuid

@@ -1 +1 @@
-bb866ed880c33ec9ce6ded8ebdbb459fedf9c257
+b3882b434a1ef7d8d636c7c5917b9e8f0d2952fb

src/select.c

@@ -12,7 +12,7 @@
 ** This file contains C code routines that are called by the parser
 ** to handle SELECT statements in SQLite.
 **
-** $Id: select.c,v 1.279 2005/11/14 22:29:05 drh Exp $
+** $Id: select.c,v 1.280 2005/11/16 13:47:51 drh Exp $
 */
 #include "sqliteInt.h"
 
@@ -1814,15 +1814,15 @@ static int multiSelect(
 
     if( pOrderBy ){
       struct ExprList_item *pOTerm = pOrderBy->a;
-      int nExpr = pOrderBy->nExpr;
+      int nOrderByExpr = pOrderBy->nExpr;
       int addr;
       u8 *pSortOrder;
 
       aCopy = (CollSeq**)&pKeyInfo[1];
-      pSortOrder = pKeyInfo->aSortOrder = (u8*)&aCopy[nExpr];
+      pSortOrder = pKeyInfo->aSortOrder = (u8*)&aCopy[nCol];
       memcpy(aCopy, pKeyInfo->aColl, nCol*sizeof(CollSeq*));
       apColl = pKeyInfo->aColl;
-      for(i=0; i<pOrderBy->nExpr; i++, pOTerm++, apColl++, pSortOrder++){
+      for(i=0; i<nOrderByExpr; i++, pOTerm++, apColl++, pSortOrder++){
         Expr *pExpr = pOTerm->pExpr;
         char *zName = pOTerm->zName;
         assert( pExpr->op==TK_COLUMN && pExpr->iColumn<nCol );
@@ -1837,7 +1837,7 @@ static int multiSelect(
       assert( p->addrOpenVirt[2]>=0 );
       addr = p->addrOpenVirt[2];
       sqlite3VdbeChangeP2(v, addr, p->pEList->nExpr+2);
-      pKeyInfo->nField = pOrderBy->nExpr;
+      pKeyInfo->nField = nOrderByExpr;
       sqlite3VdbeChangeP3(v, addr, (char*)pKeyInfo, P3_KEYINFO_HANDOFF);
       pKeyInfo = 0;
       generateSortTail(pParse, p, v, p->pEList->nExpr, eDest, iParm);

test/tkt1501.test

@@ -0,0 +1,31 @@
+# 2005 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1501 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1501-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT a, b, 'abc' FROM t1
+      UNION
+      SELECT b, a, 'xyz' FROM t1
+      ORDER BY 2, 3;
+  }
+} {2 1 xyz 1 2 abc}
+
+finish_test