Fix a NULL pointer dereference following an OOM error in the column name

resolver. (CVS 6685)

FossilOrigin-Name: 3b46142532934d17aa136c2e56e58e7828df0f54

manifest

@@ -1,5 +1,5 @@
-C Make\ssure\sthe\scolumn\sname\sresolver\sdoes\snot\stry\sto\sduplicate\sExpr.u.zToken\nwhen\sthe\sExpr.u.iValue\sunion\smember\sis\sthe\selement\sbeing\sused.\s(CVS\s6684)
-D 2009-05-28T12:49:53
+C Fix\sa\sNULL\spointer\sdereference\sfollowing\san\sOOM\serror\sin\sthe\scolumn\sname\nresolver.\s(CVS\s6685)
+D 2009-05-28T14:34:50
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in 583e87706abc3026960ed759aff6371faf84c211
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -156,7 +156,7 @@ F src/pragma.c d4a6fd74fd1dba0f22c8930791f7fbbe80d2ef26
 F src/prepare.c f46d1a029760edee5447e27164fb3ae10e2a6839
 F src/printf.c 3f4dca207a88258d37af5a7a03e800a825fe6456
 F src/random.c 676b9d7ac820fe81e6fb2394ac8c10cff7f38628
-F src/resolve.c 3e2df0a2f41a425c4260e7ca932ebdc6cf8ff6b2
+F src/resolve.c fc6fdd01305518fd1462e1621213e63bd011a115
 F src/rowset.c c64dafba1f9fd876836c8db8682966b9d197eb1f
 F src/select.c fd1737a667bab296f50049a841b3aba5ec89418e
 F src/shell.c 7eacd0bdaa887931f5ff205c9defc3e8df95a2dd
@@ -731,7 +731,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P 5904af6e6df3effdaaa30e7cf96ee316fc09b28d
-R 525bf44a2c83ebc207687f9de40c8b4c
+P 376ecf0d87e4a2329f5861401f83ed9ceb35d528
+R bbce5972206d6f118dd6353677bfd682
 U drh
-Z 1bf7740e558a10c01f1b3c9c89c84c9a
+Z f90523b52af270223148e00c0be5042d

manifest.uuid

@@ -1 +1 @@
-376ecf0d87e4a2329f5861401f83ed9ceb35d528
+3b46142532934d17aa136c2e56e58e7828df0f54

src/resolve.c

@@ -14,7 +14,7 @@
 ** resolve all identifiers by associating them with a particular
 ** table and column.
 **
-** $Id: resolve.c,v 1.25 2009/05/28 12:49:53 drh Exp $
+** $Id: resolve.c,v 1.26 2009/05/28 14:34:50 drh Exp $
 */
 #include "sqliteInt.h"
 #include <stdlib.h>
@@ -73,6 +73,7 @@ static void resolveAlias(
     pDup->iTable = pEList->a[iCol].iAlias;
   }else if( ExprHasProperty(pOrig, EP_IntValue) || pOrig->u.zToken==0 ){
     pDup = sqlite3ExprDup(db, pOrig, 0);
+    if( pDup==0 ) return;
   }else{
     char *zToken = pOrig->u.zToken;
     pOrig->u.zToken = 0;