The EXPLAIN QUERY PLAN now identifies when tables use the integer primary key. (CVS 2771)

FossilOrigin-Name: 80721e2c9033abb2e9eed32892c4e486c293e1fa

manifest

@@ -1,5 +1,5 @@
-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
+C The\sEXPLAIN\sQUERY\sPLAN\snow\sidentifies\swhen\stables\suse\sthe\sinteger\sprimary\skey.\s(CVS\s2771)
+D 2005-11-21T12:46:27
 F Makefile.in 12784cdce5ffc8dfb707300c34e4f1eb3b8a14f1
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -88,7 +88,7 @@ F src/vdbeapi.c 85bbe1d0243a89655433d60711b4bd71979b59cd
 F src/vdbeaux.c eb1ce3a40d37a1a7e92749e0ef72e3224fa5e55f
 F src/vdbefifo.c 9efb94c8c3f4c979ebd0028219483f88e57584f5
 F src/vdbemem.c cd9609c1e7f71ec76d9840c84c3a57ebfa6539cf
-F src/where.c 5b1bc977f34e21983fecf3878007918c844086d6
+F src/where.c 312ca128cb6cc7abffb1cd40295b7e871bd79102
 F tclinstaller.tcl 046e3624671962dc50f0481d7c25b38ef803eb42
 F test/all.test 7f0988442ab811dfa41793b5b550f5828ce316f3
 F test/alter.test 9d6837a3d946b73df692b7cef2a7644d2e2f6bc6
@@ -319,7 +319,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P bb866ed880c33ec9ce6ded8ebdbb459fedf9c257
-R 7c9a33e45e816665be15765531c18711
+P b3882b434a1ef7d8d636c7c5917b9e8f0d2952fb
+R 25ffda8d5782d9ad16227a0b0f9f23e5
 U drh
-Z aa3c54ef29f09c5fa4da147679eb55f1
+Z addd89d3da9030efc574ff6faf614d91

manifest.uuid

@@ -1 +1 @@
-b3882b434a1ef7d8d636c7c5917b9e8f0d2952fb
+80721e2c9033abb2e9eed32892c4e486c293e1fa

src/where.c

@@ -16,7 +16,7 @@
 ** so is applicable.  Because this module is responsible for selecting
 ** indices, you might also think of this module as the "query optimizer".
 **
-** $Id: where.c,v 1.181 2005/11/14 22:29:06 drh Exp $
+** $Id: where.c,v 1.182 2005/11/21 12:46:27 drh Exp $
 */
 #include "sqliteInt.h"
 
@@ -1550,6 +1550,8 @@ WhereInfo *sqlite3WhereBegin(
       }
       if( (pIx = pLevel->pIdx)!=0 ){
         zMsg = sqlite3MPrintf("%z WITH INDEX %s", zMsg, pIx->zName);
+      }else if( pLevel->flags & (WHERE_ROWID_EQ|WHERE_ROWID_RANGE) ){
+        zMsg = sqlite3MPrintf("%z USING INTEGER PRIMARY KEY", zMsg);
       }
       sqlite3VdbeOp3(v, OP_Explain, i, pLevel->iFrom, zMsg, P3_DYNAMIC);
     }