Merge the latest enhancements from trunk.

FossilOrigin-Name: 91e5c07eaf884d3598df8eb54f0910a80df48397

diff --cc manifest
index 9a3a2004c1fc28dbd90bfcb1d69dfa80d33c348d,79ea0c73d4b7c11c3819da8c4c7a923212daca62..cc7dd90dc4e5d92d477ac48ba7aea52ede2d48f4
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,6 -1,6 +1,6 @@@
- C Merge\sall\srecent\senhancements\sfrom\strunk.
- D 2016-04-20T12:16:05.997
- F Makefile.in eba680121821b8a60940a81454316f47a341487a
 -C Postpone\sI/O\sassociated\swith\sTEMP\sfiles\sfor\sas\slong\sas\spossible,\swith\sthe\nhope\sthat\sthe\sI/O\scan\sultimately\sbe\savoided\scompletely.
 -D 2016-04-29T15:39:48.423
++C Merge\sthe\slatest\senhancements\sfrom\strunk.
++D 2016-04-29T16:01:18.190
+ F Makefile.in 9e816d0323e418fbc0f8b2c05fc14e0b3763d9e8
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc 71b8b16cf9393f68e2e2035486ca104872558836
  F README.md 8ecc12493ff9f820cdea6520a9016001cb2e59b7
@@@ -359,28 -361,28 +361,28 @@@ F src/os.c 4d83917f072ad958fba9235136fa
  F src/os.h 8e976e59eb4ca1c0fca6d35ee803e38951cb0343
  F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
  F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
- F src/os_unix.c d0b41a47eb5f0dc00e423a1723aadeab0e78c85f
- F src/os_win.c b169437dff859e308b3726594094a2f8ca922941
+ F src/os_unix.c 8422fba2eb592fbbb2d4006b6f2a67cad8951495
+ F src/os_win.c 852fc2ff6084296348ed3739c548b2cf32df394e
  F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
- F src/pager.c 476884ce8d8e845daf88f1b12b8ca446bac5fdc5
 -F src/pager.c a8d30c49c231e9a20d05257613db922532588963
 -F src/pager.h 329bdf078a4e0a3b35084534d58625d21fd03681
 -F src/parse.y 10eb2f3fb62341291528c7984498054731f9d31e
++F src/pager.c 41559a2b4461a6cf4b24bedb47d4e303d02729b5
 +F src/pager.h 6656436178c295d0668520739118e71a46163b8e
 +F src/parse.y 2e1d371f99535ff29d1cd85052aa11cc636e21c8
- F src/pcache.c 647bb53a86b7bbcf55ad88089b3ea5a9170b90df
- F src/pcache.h 4d0ccaad264d360981ec5e6a2b596d6e85242545
- F src/pcache1.c c40cdb93586e21b5dd826b5e671240bd91c26b05
+ F src/pcache.c b3230ecfc7f797063fbe167f2845da363e8f07f8
+ F src/pcache.h 6b865be765d1ebd06145219550b10921c7da7cc9
+ F src/pcache1.c 7f51d2b541aab57596adf62db2c4bb025d34f04d
  F src/pragma.c faf42922bb7ab2f6672cb550356c1967abae3c84
  F src/pragma.h 64c78a648751b9f4f297276c4eb7507b14b4628c
  F src/prepare.c 22df6171aec1d86904ed2ad30c2348a5748aa04e
  F src/printf.c 63e6fb12bbe702dd664dc3703776c090383a5a26
  F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
  F src/resolve.c b8f7174e5f8c33c44ded3a25a973d0bb89228c20
- F src/rowset.c 9fe4b3ad7cc00944386bb600233d8f523de07a6e
- F src/select.c 30217121bdf6b587462150b8ee9e1467f7a6036b
+ F src/rowset.c 49eb91c588a2bab36647368e031dc5b66928149d
+ F src/select.c fd4a7ce2937497181063cfedb92058ac89491a5d
  F src/shell.c 14ff7f660530a52b117d110ba3390b7b2eb719b6
- F src/sqlite.h.in 64eb70a3b309751bebf73a5552a51244f68f0ea5
+ F src/sqlite.h.in 9984129d86243424b765fcb3f147c697bd20bb54
  F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
  F src/sqlite3ext.h 98f72cbfe00169c39089115427d06ea05fe4b4a2
- F src/sqliteInt.h 0d9f22432cf553bab15e25cf168b57d93396922b
 -F src/sqliteInt.h f4a53f3547dab80dc7db975fa1192d9bad1f38e8
++F src/sqliteInt.h e6ac0d8f8cbb062a57882858b1deed1a7924314b
  F src/sqliteLimit.h c0373387c287c8d0932510b5547ecde31b5da247
  F src/status.c 70912d7be68e9e2dbc4010c93d344af61d4c59ba
  F src/table.c 5226df15ab9179b9ed558d89575ea0ce37b03fc9
@@@ -400,9 -402,9 +402,9 @@@ F src/test_backup.c 2e6e6a081870150f20c
  F src/test_bestindex.c 29af3cc3b963ffe5760c85d142b9b3e5302c1e3d
  F src/test_blob.c b2551a9b5573232db5f66f292307c37067937239
  F src/test_btree.c 2e9978eca99a9a4bfa8cae949efb00886860a64f
 -F src/test_config.c 7003f6f35134de6f19c6588f44783e43390ea277
 +F src/test_config.c 5165f79b3aea5305627ac36dd7b9b5f124572da1
  F src/test_demovfs.c 0de72c2c89551629f58486fde5734b7d90758852
- F src/test_devsym.c 7e73009d5297b603c11c66d7c7d6723d4b5c73e1
+ F src/test_devsym.c 4e58dec2602d8e139ca08659f62a62450587cb58
  F src/test_fs.c f10f840ca4f8c72e4837908bd8347ac4bcab074b
  F src/test_func.c 37453d346cfcf118774efd5bf6187f7e6a7e3254
  F src/test_hexio.c abfdecb6fa58c354623978efceb088ca18e379cd
@@@ -439,9 -441,9 +441,9 @@@ F src/treeview.c e4b41a37530a191579d3c5
  F src/trigger.c e14840ee0c3e549e758ec9bf3e4146e166002280
  F src/update.c 3e67ab3c0814635f355fb1f8ab010a2b9e016e7d
  F src/utf.c 699001c79f28e48e9bcdf8a463da029ea660540c
- F src/util.c 187a0a2aaa3c5d2ccd2ab0143b2fd9e86d6bc816
+ F src/util.c 810ec3f22e2d1b62e66c30fe3621ebdedd23584d
 -F src/vacuum.c feb1eabb20987983d9350cad98299b21fa811f52
 -F src/vdbe.c 08fbea00a7f7f723973093c5f5bf7c40c025e2b3
 +F src/vacuum.c c1a94413f8fa9d9b2cbe3af9a89377f777be676c
- F src/vdbe.c 226c51cced9aa6f66748f626413d3f0348f2fcb8
++F src/vdbe.c 4f0378eb44406a6a61686dff7970fa314f0f44bd
  F src/vdbe.h 5591b5add447096e31288b5a0a78ec5d7b5c5170
  F src/vdbeInt.h ddb157974436d87652de7dc641f7191496d9a8cd
  F src/vdbeapi.c ba85b78fe08dc4a9ce747e62c89a2b4a4547e74c
@@@ -1485,7 -1486,8 +1489,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P d7381efff47c0a2f307478f196d03df7534f19e3 eba27d4d17a76884292667d570d542e580ee3e77
- R b2d94baa5aa70083709fce61087ef618
 -P 4cbd50245440e714935399a5c285cf32d8bfc424 b7bec7f2d3d08d0c14f77654be2c5cedf1619e58
 -R f9ef4e1af8653e902d9192ffb04cabc2
 -T +closed b7bec7f2d3d08d0c14f77654be2c5cedf1619e58
++P 1f709fbf931e4d75848fc90532e2bc67ccd47cd4 9d0a5ae00273686ea35b43bc2ffaa8775c176363
++R 53ca713e0bf5b0eed86d88e36153628f
  U drh
- Z 09ace714760db63cbd8099bd8f9784df
 -Z 20681342134be4241c18925dab8e4f41
++Z e98bb20abec63c17e483c921950d1a1a

diff --cc manifest.uuid
index 82a5e61542824a1f37d1804b6d53465cda093b4d,fc6b7bfe0572a3e23ab00484f2a1c5e1929e55af..43d7e4a9986ef8dc24d719bd1c463a8659623c8e
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 1f709fbf931e4d75848fc90532e2bc67ccd47cd4
 -9d0a5ae00273686ea35b43bc2ffaa8775c176363
++91e5c07eaf884d3598df8eb54f0910a80df48397

diff --cc src/pager.c
index 363ddf7f33cc20b9d640b8d2610e4e8d9633731b,d24337cd50e5d758c71a42cb64f240b96199fe45..36a936a9c3d6c65f3afef205a329f556d3769f3c
--- 1/src/pager.c
--- 2/src/pager.c
+++ b/src/pager.c
@@@ -2053,9 -2029,14 +2079,13 @@@ static int pager_end_transaction(Pager 
    }
  #endif
  
 -  sqlite3BitvecDestroy(pPager->pInJournal);
 -  pPager->pInJournal = 0;
 +  pagerFreeBitvecs(pPager);
    pPager->nRec = 0;
-   sqlite3PcacheCleanAll(pPager->pPCache);
+   if( MEMDB || pagerFlushOnCommit(pPager) ){
+     sqlite3PcacheCleanAll(pPager->pPCache);
+   }else{
+     sqlite3PcacheClearWritable(pPager->pPCache);
+   }
    sqlite3PcacheTruncate(pPager->pPCache, pPager->dbSize);
  
    if( pagerUseWal(pPager) ){

diff --cc src/sqliteInt.h
Simple merge

diff --cc src/vdbe.c
Simple merge