Fix pager_end_transaction() to ensure that a ROLLBACK does not clobber

unwritten pages in a TEMP file pcache.

FossilOrigin-Name: 9495d33879221c1821331dc72c61a6a3d182f526

manifest

@@ -1,5 +1,5 @@
-C Additional\sdebugging\sand\stracing\slogic\sfor\spcache.c,\sturned\soff\sby\sdefault\nusing\san\s"#if\s0".
-D 2016-05-13T04:24:25.046
+C Fix\spager_end_transaction()\sto\sensure\sthat\sa\sROLLBACK\sdoes\snot\sclobber\nunwritten\spages\sin\sa\sTEMP\sfile\spcache.
+D 2016-05-13T11:50:00.812
 F Makefile.in 9eda6e1c90d05c199c3ec8a7069b0682ad307657
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc db82b35aef27f412fef14d8534afc022138bcdfd
@@ -364,7 +364,7 @@ F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
 F src/os_unix.c a9443cdab41d7f3cdf0df3a5aab62fd6e1c9b234
 F src/os_win.c 852fc2ff6084296348ed3739c548b2cf32df394e
 F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
-F src/pager.c b6b3f2aff301cb025b23a8586666c91355cb3c69
+F src/pager.c 64f42bd0d20f180f99727ce5a3755a97c9a12700
 F src/pager.h 329bdf078a4e0a3b35084534d58625d21fd03681
 F src/parse.y 10eb2f3fb62341291528c7984498054731f9d31e
 F src/pcache.c ad5ce697dc5a734caddb2b1eac83b195da95ddbe
@@ -1488,7 +1488,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 24d9fbc1d0f99b90577ecd6edcd3bc1abc76633f
-R d638f11a5a2154aefeed14f79e8ebc4d
+P 32a62e3bd46cf58586617d3f8b1a971c91df205e
+R 7ea6babb6ca28821d5ebb371842cc2c9
 U drh
-Z 291bccc6a32f88cd8cda8747cf2307e8
+Z 5e0d604d556f91727b00c6f570867611

manifest.uuid

@@ -1 +1 @@
-32a62e3bd46cf58586617d3f8b1a971c91df205e
+9495d33879221c1821331dc72c61a6a3d182f526

src/pager.c

@@ -2033,7 +2033,7 @@ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
   pPager->pInJournal = 0;
   pPager->nRec = 0;
   if( rc==SQLITE_OK ){
-    if( pagerFlushOnCommit(pPager) ){
+    if( !pPager->tempFile || (bCommit && pagerFlushOnCommit(pPager)) ){
       sqlite3PcacheCleanAll(pPager->pPCache);
     }else{
       sqlite3PcacheClearWritable(pPager->pPCache);