Merge recent performance enhancements from trunk onto the threads branch.

FossilOrigin-Name: 35c44a3c73e2e8b14ff194c41986f4bdb9dfe737

diff --cc manifest
index 9edec3f675fb07822be2e1e1b34722378fab3000,6785ddc6c476b423845df5f7001230af7b47e243..b491b9fbcbf9e1b2bba65fe05bf7f32a6e8f4aae
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,9 -1,9 +1,9 @@@
- C Remove\sthe\sSQLITE_CONFIG_WORKER_THREADS\sconfiguration\sparameter.\s\sThe\snumber\nof\sworker\sthreads\sin\sthe\ssorter\sis\snow\sdetermined\sonly\sby\sthe\nPRAGMA\sthreads=N\ssetting.
- D 2014-08-25T23:44:44.281
 -C Note\sa\sfault\safter\sall,\srather\sa\stesting\smistake.\nMove\sthis\schange\sback\sto\strunk.\nWas:\sAvoid\san\sunnecessary\sOP_Move\soperation\sfor\sexpression\ssubqueries.
 -D 2014-08-29T14:20:46.550
++C Merge\srecent\sperformance\senhancements\sfrom\strunk\sonto\sthe\sthreads\sbranch.
++D 2014-08-29T14:40:07.113
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 -F Makefile.in 5eb79e334a5de69c87740edd56af6527dd219308
 +F Makefile.in cf57f673d77606ab0f2d9627ca52a9ba1464146a
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
 -F Makefile.msc 5b04e657cf08a9ac7fc47d876c5c8be962c47d6b
 +F Makefile.msc e31dee24038965fb6269d6d61073fd6b7e331dec
  F Makefile.vxworks 034289efa9d591b04b1a73598623119c306cbba0
  F README.md 64f270c43c38c46de749e419c22f0ae2f4499fe8
  F VERSION 53a0b870e7f16d3b06623c31d233a304c163a6af
@@@ -209,26 -209,26 +209,26 @@@ F src/os.h 60d419395e32a8029fa380a80a3d
  F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
  F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
  F src/os_unix.c bd7df3094a60915c148517504c76df4fca24e542
 -F src/os_win.c d067fce558a5032e6e6afe62899e5397bf63cf3e
 +F src/os_win.c 08ce5616a5755da9400931fb39146e4a97801a2a
  F src/os_win.h 09e751b20bbc107ffbd46e13555dc73576d88e21
- F src/pager.c 53cc5e9d73afb74add79f49755c8ee240fbdbef7
+ F src/pager.c 3e732d2bbdd8d8d95fed0c5ae7e718d73153c4c5
  F src/pager.h ffd5607f7b3e4590b415b007a4382f693334d428
  F src/parse.y 22d6a074e5f5a7258947a1dc55a9bf946b765dd0
- F src/pcache.c da602c5447051705cab41604bf3276815eb569d0
- F src/pcache.h a5e4f5d9f5d592051d91212c5949517971ae6222
+ F src/pcache.c 3b3791297e8977002e56b4a9b8916f2039abad9b
+ F src/pcache.h 9b559127b83f84ff76d735c8262f04853be0c59a
  F src/pcache1.c c5af6403a55178c9d1c09e4f77b0f9c88822762c
 -F src/pragma.c d10ef67c4de79f78188b965b4b7988aff1d66f2e
 +F src/pragma.c 33971fcaa7c13b84b1a0f2e813f4a3ab4d745ede
  F src/prepare.c 3842c1dfc0b053458e3adcf9f6efc48e03e3fe3d
  F src/printf.c 00986c86ddfffefc2fd3c73667ff51b3b9709c74
  F src/random.c d10c1f85b6709ca97278428fd5db5bbb9c74eece
  F src/resolve.c 0ea356d32a5e884add23d1b9b4e8736681dd5697
  F src/rowset.c a9c9aae3234b44a6d7c6f5a3cadf90dce1e627be
- F src/select.c f8b0b6c43bee15f4e239ead1c9c9e3009e507e39
 -F src/select.c 1c4667571f2c9e339b5a5c5b152a9ea7b0bc4163
 -F src/shell.c 728d2226594d356bf4fbdbdfd08538fd78fd06f3
 -F src/sqlite.h.in ed9d35990c61f0388ca6405706455c4095310553
++F src/select.c 89e569b263535662f54b537eb9118b2c554ae7aa
 +F src/shell.c 88378cef39aba4b4a1df82793dcb1daf9276bb81
 +F src/sqlite.h.in aa2cc1405cb999c9d73484e0686f7b869b430ba3
  F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
  F src/sqlite3ext.h 886f5a34de171002ad46fae8c36a7d8051c190fc
 -F src/sqliteInt.h d8a9be2aa123a78c90ad4aba09b23e7dd3f8cc9f
 +F src/sqliteInt.h 43419afaed8cd3bf99df06d38952a52f827217b9
  F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
  F src/status.c 7ac05a5c7017d0b9f0b4bcd701228b784f987158
  F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
@@@ -285,14 -284,14 +285,14 @@@ F src/update.c ea336ce7b8b3fc5e316ba8f0
  F src/utf.c 77abb5e6d27f3d236e50f7c8fff1d00e15262359
  F src/util.c 068dcd26354a3898ccc64ad5c4bdb95a7a15d33a
  F src/vacuum.c 3728d74919d4fb1356f9e9a13e27773db60b7179
- F src/vdbe.c 5d6a6ad63227dfd444d13b3391272b20d1a76100
 -F src/vdbe.c fd193824d1cc4a71c631eb792ce837aab530210a
++F src/vdbe.c 90db7ad740b6d3f7ab446e6244dbc17ce495cca6
  F src/vdbe.h c63fad052c9e7388d551e556e119c0bcf6bebdf8
- F src/vdbeInt.h a1fcc0a04445c5d797694dc860a906010b9be7e6
- F src/vdbeapi.c cda974083d7597f807640d344ffcf76d872201ce
 -F src/vdbeInt.h 4653bb420abb7acdc215659cdcedd3a59f336191
++F src/vdbeInt.h cdc8e421f85beb1ac9b4669ec5beadab6faa15e0
+ F src/vdbeapi.c 09677a53dd8c71bcd670b0bd073bb9aefa02b441
 -F src/vdbeaux.c dba006f67c9fd1b1d07ee7fb0fb38aa1905161d1
 +F src/vdbeaux.c cef5d34a64ae3a65b56d96d3fd663246ec8e1c36
  F src/vdbeblob.c 848238dc73e93e48432991bb5651bf87d865eca4
- F src/vdbemem.c 4e08ea087aea367dae7c45129b75487e0056e819
+ F src/vdbemem.c 921d5468a68ac06f369810992e84ca22cc730a62
 -F src/vdbesort.c f7f5563bf7d4695ca8f3203f3bf9de96d04ed0b3
 +F src/vdbesort.c 50fe3442f41dbfe0b37d2e8b55e7460244015533
  F src/vdbetrace.c 6f52bc0c51e144b7efdcfb2a8f771167a8816767
  F src/vtab.c 019dbfd0406a7447c990e1f7bd1dfcdb8895697f
  F src/wal.c 264df50a1b33124130b23180ded2e2c5663c652a
@@@ -1193,7 -1188,8 +1193,7 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P 6c8f86e4e08d5d57e21496277613e0f9dcc06514
- R 428258d1143faa4ab393e38d0d72251a
 -P fdd478bb11eb9e244a7a1fb628ac27c53830fb24 462f42af52f146fd328ddcbbe78c8444ef7bd2c3
 -R ee023126020f0faa82dce1872da63eb6
 -T +closed 462f42af52f146fd328ddcbbe78c8444ef7bd2c3
++P e3305d4b4efcbe06945ce7f6ec0f2e864244aaf9 2a74129a21f9745f1363f844807e2d10201a3f40
++R a4f057fd137875212defd2b87d648d95
  U drh
- Z 37ad2e5d491e7e49897b74763238faf5
 -Z 4973cc497d9d5b46eb65808e822ee62c
++Z c730a4dfee48578be19b0ff5cd3b7719

diff --cc manifest.uuid
index a22d912847256b193f1ef000a47b632310a0aaff,39e2d4034ed6fa42e387844b57867ea068ff2853..7f66b19a614a8e377f1fa146cdb87c47f65f6e71
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- e3305d4b4efcbe06945ce7f6ec0f2e864244aaf9
 -2a74129a21f9745f1363f844807e2d10201a3f40
++35c44a3c73e2e8b14ff194c41986f4bdb9dfe737

diff --cc src/select.c
index e26dca5688ad68aea2397a42fdcd87da2ea34ebc,44b9cd034c96add1202e172b3edcf956812360d8..5508c2e694723423f5709ff6ae4160e118cb1a4d
--- 1/src/select.c
--- 2/src/select.c
+++ b/src/select.c
@@@ -853,9 -827,9 +853,9 @@@ static void selectInnerLoop
      case SRT_Mem: {
        assert( nResultCol==1 );
        if( pSort ){
 -        pushOntoSorter(pParse, pSort, p, regResult);
 +        pushOntoSorter(pParse, pSort, p, regResult, 1, nPrefixReg);
        }else{
-         sqlite3ExprCodeMove(pParse, regResult, iParm, 1);
+         assert( regResult==iParm );
          /* The LIMIT clause will jump out of the loop for us */
        }
        break;

diff --cc src/vdbe.c
Simple merge

diff --cc src/vdbeInt.h
Simple merge