Do not allow aggregate functions in a WHERE clause. Ticket #1514. (CVS 2769)

FossilOrigin-Name: bb866ed880c33ec9ce6ded8ebdbb459fedf9c257

manifest

@@ -1,5 +1,5 @@
-C Avoid\sunnecessary\sstrlen()\scalls\sin\sthe\sOP_String\sopcode.\s(CVS\s2768)
-D 2005-11-16T04:34:32
+C Do\snot\sallow\saggregate\sfunctions\sin\sa\sWHERE\sclause.\s\sTicket\s#1514.\s(CVS\s2769)
+D 2005-11-16T12:53:15
 F Makefile.in 12784cdce5ffc8dfb707300c34e4f1eb3b8a14f1
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -41,7 +41,7 @@ F src/complete.c 4de937dfdd4c79a501772ab2035b26082f337a79
 F src/date.c 7444b0900a28da77e57e3337a636873cff0ae940
 F src/delete.c 29dac493f4d83b05f91233b116827c133bcdab72
 F src/experimental.c 50c1e3b34f752f4ac10c36f287db095c2b61766d
-F src/expr.c fa22a2ed9d277e3bd4467842fbc025e106fd0d51
+F src/expr.c 3b1a24aab6a17e7cc62d904eba802beccc3e925f
 F src/func.c 7d81dccd9c440c6c4e761056333e629192814af0
 F src/hash.c 8747cf51d12de46512880dfcf1b68b4e24072863
 F src/hash.h 1b0c445e1c89ff2aaad9b4605ba61375af001e84
@@ -227,6 +227,7 @@ F test/tkt1444.test 5ef55d36dba1a39a96c728a519e66378a6f6816f
 F test/tkt1449.test f8de8a84ec12ee805ed80055e1209560f8bee4d8
 F test/tkt1473.test e4637c27d606fd002de78113a8e1a142e48ffb18
 F test/tkt1512.test 8efd8d07e27e99d7462f75b5711de65eb7708baf
+F test/tkt1514.test baa587a69fa2e8d575ebdaf1460f711281dcba49
 F test/trace.test 9fd28695c463b90c2d32c387a432e01eb26e8ccf
 F test/trans.test 10506dc30305cfb8c4098359f7f6f64786f69c5e
 F test/trigger1.test 152aed5a1fa90709fe171f2ca501a6b7f7901479
@@ -317,7 +318,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 25fa16a2e1f324790f4b293df5d7142575034428
-R 6947ef477ab782876c329e5cbcb856d9
+P 2e195e96bcbad104da09ebe6cef617e0e9ef1884
+R ffdeff6933e9c8149230cb664075bfe1
 U drh
-Z 45b9b11236dc8332f514b54b24426e7f
+Z b747cc0c814ab502d11e59e2f8d36ee2

manifest.uuid

@@ -1 +1 @@
-2e195e96bcbad104da09ebe6cef617e0e9ef1884
+bb866ed880c33ec9ce6ded8ebdbb459fedf9c257

src/expr.c

@@ -12,7 +12,7 @@
 ** This file contains routines used for analyzing expressions and
 ** for generating VDBE code that evaluates expressions in SQLite.
 **
-** $Id: expr.c,v 1.237 2005/11/14 22:29:05 drh Exp $
+** $Id: expr.c,v 1.238 2005/11/16 12:53:15 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -1650,7 +1650,12 @@ void sqlite3ExprCode(Parse *pParse, Expr *pExpr){
     }
     case TK_AGG_FUNCTION: {
       AggInfo *pInfo = pExpr->pAggInfo;
+      if( pInfo==0 ){
+        sqlite3ErrorMsg(pParse, "misuse of aggregate: %T",
+            &pExpr->span);
+      }else{
         sqlite3VdbeAddOp(v, OP_MemLoad, pInfo->aFunc[pExpr->iAgg].iMem, 0);
+      }
       break;
     }
     case TK_CONST_FUNC:

test/tkt1514.test

@@ -0,0 +1,27 @@
+# 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 #1514 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1514-1.1 {
+  catchsql {
+    CREATE TABLE t1(a,b);
+    SELECT a FROM t1 WHERE max(b)<10 GROUP BY a;
+  }
+} {1 {misuse of aggregate: max(b)}}
+
+finish_test