Do not invoke the xDelete method when converting to PRAGMA journal_mode=OFF

if the underlying VFS does not support that method.
dbsqlfuzz 39d6af88ef5242f866c4f9b21ede330c5c1e36a8.

FossilOrigin-Name: d91450847a3a3a7217f8f5947adea9a4d12cf77607d40f9724d6ba093919b524

diff --git a/manifest b/manifest
index 6d21632f8ae02bbd1af709f73530c26795e60344..a1733ff759edb26f807dae1fae32d103148c7e5d 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C As\sa\scontinuation\sof\s[1f66a85b7757754f],\sensure\sthat\san\sOOM\sthat\soccurs\nwhile\schecking\sthe\svalidity\sof\sthe\sschema\sis\sreported\sout\sas\sSQLITE_NOMEM\nand\snot\sas\sSQLITE_SCHEMA.
-D 2021-04-05T11:39:55.507
+C Do\snot\sinvoke\sthe\sxDelete\smethod\swhen\sconverting\sto\sPRAGMA\sjournal_mode=OFF\nif\sthe\sunderlying\sVFS\sdoes\snot\ssupport\sthat\smethod.\ndbsqlfuzz\s39d6af88ef5242f866c4f9b21ede330c5c1e36a8.
+D 2021-04-05T13:41:42.119
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -529,7 +529,7 @@ F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
 F src/os_unix.c b5b7475bd1a8f1b83b6173a81f4fe50f9e077ccbacb62ce2fe7a5cb89916bce1
 F src/os_win.c 77d39873836f1831a9b0b91894fec45ab0e9ca8e067dc8c549e1d1eca1566fe9
 F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
-F src/pager.c 970691daea03f9f15e34de671bd8675c1e136232b529e21bfd36d4dba6d41753
+F src/pager.c 989d552db1a9d2b1783c6f0421ce927a46453bf15ae5e5b7174132e3f333b758
 F src/pager.h 4bf9b3213a4b2bebbced5eaa8b219cf25d4a82f385d093cd64b7e93e5285f66f
 F src/parse.y 2107aff88e361bbf8388fdede3fed20fda875f23ba7585ec83b20e3e16a95670
 F src/pcache.c 385ff064bca69789d199a98e2169445dc16e4291fa807babd61d4890c3b34177
@@ -1189,7 +1189,7 @@ F test/malloctraceviewer.tcl b7a54595270c1d201abf1c3f3d461f27eaf24cdef623ad08a0f
 F test/manydb.test 28385ae2087967aa05c38624cec7d96ec74feb3e
 F test/mem5.test c6460fba403c5703141348cd90de1c294188c68f
 F test/memdb.test c1f2a343ad14398d5d6debda6ea33e80d0dafcc7
-F test/memdb1.test 58d92c2bf622cc5f0f41461e1b35cf64f3f787199544c2c1dada37d88753f9d4
+F test/memdb1.test 7b76c3262d63c46dd6b408d18f5721071776f2df4ffeb11e668824e427127594
 F test/memleak.test 10b9c6c57e19fc68c32941495e9ba1c50123f6e2
 F test/memsubsys1.test 9e7555a22173b8f1c96c281ce289b338fcba2abe8b157f8798ca195bbf1d347e
 F test/memsubsys2.test 3e4a8d0c05fd3e5fa92017c64666730a520c7e08
@@ -1912,7 +1912,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P ad718388a1f6e25ceba43a40160fac0d9d9d3f26888e98d7b9db478c0b1780be
-R 4d3b70fed2c5b14861d4ecb85ec58007
+P 5045c8a748f0065638d0ff4f6e3ccd124183fbc518cb9b0418d125b04dbc1491
+R cde81bb53fd262e4f921df03755797f7
 U drh
-Z 70c8a0408ada34ebc0490f884dfe18c7
+Z acea419643fa9f724a3b80b1ba776e22

diff --git a/manifest.uuid b/manifest.uuid
index acde854d4790d21649e26d862edafa26337b33f6..b6c76b5cd9537f19c07413b221a0e6fd1ff85ecf 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-5045c8a748f0065638d0ff4f6e3ccd124183fbc518cb9b0418d125b04dbc1491
\ No newline at end of file
+d91450847a3a3a7217f8f5947adea9a4d12cf77607d40f9724d6ba093919b524
\ No newline at end of file

diff --git a/src/pager.c b/src/pager.c
index cd9096ed1c751913164f8f3d262ddde713f4b61e..ed28634454021962ea7e86f144fa34a5d7889a2c 100644 (file)
--- a/src/pager.c
+++ b/src/pager.c
@@ -7326,7 +7326,7 @@ int sqlite3PagerSetJournalMode(Pager *pPager, int eMode){
           assert( rc==SQLITE_OK );
           rc = pagerLockDb(pPager, RESERVED_LOCK);
         }
-        if( rc==SQLITE_OK ){
+        if( rc==SQLITE_OK && pPager->pVfs->xDelete!=0 ){
           sqlite3OsDelete(pPager->pVfs, pPager->zJournal, 0);
         }
         if( rc==SQLITE_OK && state==PAGER_READER ){

diff --git a/test/memdb1.test b/test/memdb1.test
index 81e9359211428ab465afe3bd1942c6a4f4dc3fb2..ae2f5d50d162b793bc46ec883faa42fdac6784bf 100644 (file)
--- a/test/memdb1.test
+++ b/test/memdb1.test
@@ -157,6 +157,16 @@ do_execsql_test 410 {
   PRAGMA integrity_check;
   SELECT * FROM t4;
 } {ok hello world!}
+do_execsql_test 420 {
+  PRAGMA journal_mode=TRUNCATE;
+  PRAGMA journal_mode=OFF;
+  PRAGMA journal_mode=DELETE;
+  PRAGMA journal_mode=WAL;
+  PRAGMA journal_mode=PERSIST;
+  PRAGMA journal_mode=MEMORY;
+  PRAGMA journal_mode=OFF;
+  PRAGMA journal_mode=DELETE;
+} {truncate off delete delete persist memory off delete}
 
 # Deserialize something that is not a database.
 #