Remove the unused Schema.db variable.

FossilOrigin-Name: 430be657be68687c998f2f5f8dcd112bf26106be

manifest

@@ -1,8 +1,5 @@
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
-C Add\sevidence\smarks\sto\sthe\swhere.c\ssource\sfile.\s\sComment\sonly\s-\sno\scode\schanges.
-D 2010-07-22T22:40:04
+C Remove\sthe\sunused\sSchema.db\svariable.
+D 2010-07-23T08:31:36
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in ec08dc838fd8110fe24c92e5130bcd91cbb1ff2e
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -175,7 +172,7 @@ F src/select.c 4903ff1bbd08b55cbce00ea43c645530de41b362
 F src/shell.c fd4ccdb37c3b68de0623eb938a649e0990710714
 F src/sqlite.h.in 2585fc82c922f2772e201e60a76d5fd1ca18370e
 F src/sqlite3ext.h 69dfb8116af51b84a029cddb3b35062354270c89
-F src/sqliteInt.h cb9ca3291acfd3f10859bcc4b2bb463e6e874939
+F src/sqliteInt.h e0d3c223fe5e43693d4b7683b3df6b6e97179ffd
 F src/sqliteLimit.h 196e2f83c3b444c4548fc1874f52f84fdbda40f3
 F src/status.c e2ad9f18c16209dab501e26020590fcebb2b751b
 F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
@@ -229,7 +226,7 @@ F src/vdbeaux.c 7f99c1f00e4b31e8b28d8a87ecc2322bb46ae99c
 F src/vdbeblob.c 258a6010ba7a82b72b327fb24c55790655689256
 F src/vdbemem.c 5e579abf6532001dfbee0e640dc34eae897a9807
 F src/vdbetrace.c 864cef96919323482ebd9986f2132435115e9cc2
-F src/vtab.c a0f8a40274e4261696ef57aa806de2776ab72cda
+F src/vtab.c 477f3dd1ccfabc7a4d930e934cd1b9604259fcfb
 F src/wal.c 0925601f3299c2941a67c9cfff41ee710f70ca82
 F src/wal.h 906c85760598b18584921fe08008435aa4eeeeb2
 F src/walker.c 3112bb3afe1d85dc52317cb1d752055e9a781f8f
@@ -841,14 +838,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
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-R 58c9336648eb3ce384b25cb1a31df81e
-U drh
-Z 05893823ee3052eca076f0070c9d2946
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+P f3f9e8e5bb90cc36e0d63a7289a8acf534c5fa2a
+R 3b4affe94bacb453466cd5c684e41e75
+U dan
+Z 440f3d00aab51cca2a0728ba4051640b

manifest.uuid

@@ -1 +1 @@
-f3f9e8e5bb90cc36e0d63a7289a8acf534c5fa2a
+430be657be68687c998f2f5f8dcd112bf26106be

src/sqliteInt.h

@@ -661,14 +661,6 @@ struct Db {
 
 /*
 ** An instance of the following structure stores a database schema.
-**
-** If there are no virtual tables configured in this schema, the
-** Schema.db variable is set to NULL. After the first virtual table
-** has been added, it is set to point to the database connection 
-** used to create the connection. Once a virtual table has been
-** added to the Schema structure and the Schema.db variable populated, 
-** only that database connection may use the Schema to prepare 
-** statements.
 */
 struct Schema {
   int schema_cookie;   /* Database schema version number for this file */
@@ -681,9 +673,6 @@ struct Schema {
   u8 enc;              /* Text encoding used by this database */
   u16 flags;           /* Flags associated with this schema */
   int cache_size;      /* Number of pages to use in the cache */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  sqlite3 *db;         /* "Owner" connection. See comment above */
-#endif
 };
 
 /*

src/vtab.c

@@ -393,7 +393,6 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
       assert( pTab==pOld );  /* Malloc must have failed inside HashInsert() */
       return;
     }
-    pSchema->db = pParse->db;
     pParse->pNewTable = 0;
   }
 }