Fix a problem introduced by [77948b5eceab92a7] causing duplicate calls to be made to the xSavepoint() method of virtual tables under some circumstances.

FossilOrigin-Name: e64a4173d2899acf13b73e6e28f2e164fd638a75

manifest

@@ -1,5 +1,5 @@
-C Fix\sharmless\scompiler\swarnings\sin\ssqlite3_status().
-D 2016-08-02T08:45:26.626
+C Fix\sa\sproblem\sintroduced\sby\s[77948b5eceab92a7]\scausing\sduplicate\scalls\sto\sbe\smade\sto\sthe\sxSavepoint()\smethod\sof\svirtual\stables\sunder\ssome\scircumstances.
+D 2016-08-02T11:29:16.818
 F Makefile.in 6c20d44f72d4564f11652b26291a214c8367e5db
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 3340e479e5221f06c3d61726f8f7efff885e4233
@@ -458,7 +458,7 @@ F src/vdbeblob.c 83d2d266383157b02e2b809350bb197e89d7895b
 F src/vdbemem.c 1ecaa5ee0caff07255f25d04e8dc88befb6f88d1
 F src/vdbesort.c 91fda3909326860382b0ca8aa251e609c6a9d62c
 F src/vdbetrace.c 41963d5376f0349842b5fc4aaaaacd7d9cdc0834
-F src/vtab.c 948d2d4984219eee37a7bf427d6667e21e6eb92e
+F src/vtab.c 6fece06fdd50eb2b0673e37e627ce6710e4af5be
 F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 F src/wal.c 02eeecc265f6ffd0597378f5d8ae9070b62a406a
 F src/wal.h 6dd221ed384afdc204bc61e25c23ef7fd5a511f2
@@ -746,7 +746,7 @@ F test/fts3aux2.test 7ae2b2c13aefdf4169279a27a5f51780ce57f6ba
 F test/fts3b.test e93bbb653e52afde110ad53bbd793f14fe7a8984
 F test/fts3c.test fc723a9cf10b397fdfc2b32e73c53c8b1ec02958
 F test/fts3comp1.test a0f5b16a2df44dd0b15751787130af2183167c0c
-F test/fts3conf.test 1c8b8adb0ab28a41b68d1514df44380bd7353402
+F test/fts3conf.test 60317efd562080e198b5bdc9fcd222ce32cf01d7
 F test/fts3corrupt.test 2710b77983cc7789295ddbffea52c1d3b7506dbb
 F test/fts3corrupt2.test 6d96efae2f8a6af3eeaf283aba437e6d0e5447ba
 F test/fts3cov.test e0fb00d8b715ddae4a94c305992dfc3ef70353d7
@@ -1509,7 +1509,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P d8ef9f58643f13dd3d16dcde0d829ae08324f04b
-R 043c924e3262ae632c6a04160549d94d
-U drh
-Z c53a56bb9efce70acc3af43de2ff893c
+P 7c38a79cdd42aaa45715aea330d10ca859098837
+R dce642e9ffc5d2b7ba510a82ce70adfa
+U dan
+Z 723af27ecacb58bb0a83305d88f4583f

manifest.uuid

@@ -1 +1 @@
-7c38a79cdd42aaa45715aea330d10ca859098837
+e64a4173d2899acf13b73e6e28f2e164fd638a75

src/vtab.c

@@ -947,7 +947,10 @@ int sqlite3VtabBegin(sqlite3 *db, VTable *pVTab){
       if( rc==SQLITE_OK ){
         int iSvpt = db->nStatement + db->nSavepoint;
         addToVTrans(db, pVTab);
-        if( iSvpt ) rc = sqlite3VtabSavepoint(db, SAVEPOINT_BEGIN, iSvpt-1);
+        if( iSvpt && pModule->xSavepoint ){
+          pVTab->iSavepoint = iSvpt;
+          rc = pModule->xSavepoint(pVTab->pVtab, iSvpt-1);
+        }
       }
     }
   }

test/fts3conf.test

@@ -211,4 +211,42 @@ do_execsql_test 4.2.2 {
   INSERT INTO t01(t01) VALUES('integrity-check');
 } {}
 
+do_execsql_test 4.3.1 {
+  CREATE VIRTUAL TABLE t02 USING fts4;
+  INSERT INTO t01 VALUES('1 1 1');
+  INSERT INTO t02 VALUES('2 2 2');
+  BEGIN;
+    SAVEPOINT abc;
+      INSERT INTO t01 VALUES('a b c');
+      INSERT INTO t02 VALUES('a b c');
+    ROLLBACK TO abc;
+  COMMIT;
+}
+do_execsql_test 4.3.2 {
+  SELECT * FROM t01 WHERE t01 MATCH 'b';
+  INSERT INTO t01(t01) VALUES('integrity-check');
+} {}
+
+do_execsql_test 4.4.1 {
+  CREATE TABLE A(ID INTEGER PRIMARY KEY, AnotherID INTEGER, Notes TEXT);
+  CREATE VIRTUAL TABLE AFTS USING FTS4 (Notes);
+  CREATE TRIGGER A_DeleteTrigger AFTER DELETE ON A FOR EACH ROW BEGIN 
+    DELETE FROM AFTS WHERE rowid=OLD.ID; 
+  END;
+  CREATE TABLE B(ID INTEGER PRIMARY KEY,Notes TEXT);
+  CREATE VIRTUAL TABLE BFTS USING FTS3 (Notes);
+  CREATE TRIGGER B_DeleteTrigger AFTER DELETE ON B FOR EACH ROW BEGIN 
+    DELETE FROM BFTS WHERE rowid=OLD.ID; 
+  END;
+}
+		
+do_execsql_test 4.4.2 {
+  BEGIN TRANSACTION;
+    DELETE FROM A WHERE AnotherID=1;
+    DELETE FROM B WHERE ID=1;
+  COMMIT;
+}
+		
+
+
 finish_test