Avoid storing redundant fields in sorter records when the sort-key

and data have fields in common.

FossilOrigin-Name: b835cf3e507b910b6a3e0f802ce2c40a72d0c227

diff --cc manifest
index fa47dd976098dabfb24b5aa0f557f3d7cbbc7124,e4616e5ad08b1b9e9179fa7ae0aaa9f98738943f..77b57f712bb301a6ade88297fc4daa569444828d
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Enhance\sthe\sOP_IdxInsert\sopcode\sso\sthat\sit\scan\sused\sunpacked\skey\svalues\sif\nthey\sare\savailable.\s\sUpdate\sthe\scode\sgenerator\sto\stake\sadvantage\sof\sthis\nnew\scapability.\s\sThe\sspeedtest1.c\stest\sis\sabout\s2.6%\sfaster\sas\sa\sresult.
- D 2016-11-11T19:01:11.983
 -C Merge\strunk\swith\sthis\sbranch.
 -D 2016-11-11T18:45:55.817
++C Avoid\sstoring\sredundant\sfields\sin\ssorter\srecords\swhen\sthe\ssort-key\s\nand\sdata\shave\sfields\sin\scommon.
++D 2016-11-11T19:08:00.236
  F Makefile.in 6fd48ffcf7c2deea7499062d1f3747f986c19678
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc e0217f2d35a0448abbe4b066132ae20136e8b408
@@@ -339,8 -339,8 +339,8 @@@ F src/complete.c a3634ab1e687055cd002e1
  F src/ctime.c a2a52d6e353f459d8ab0f07321f60fafa47d5421
  F src/date.c 95c9a8d00767e7221a8e9a31f4e913fc8029bf6b
  F src/dbstat.c 19ee7a4e89979d4df8e44cfac7a8f905ec89b77d
 -F src/delete.c cb3f6300df24c26c609778b2731f82644b5532ec
 -F src/expr.c 1fd53148e575de810ad10a9eb15f16f2e44ff1dc
 +F src/delete.c 6cac3a6c3f3c5ad4cacc402aee1610fc94ebc3dc
- F src/expr.c ddd46bafbbd77b83c8daa733ebbe906093b558dc
++F src/expr.c d8c8277d77e95d7fcce3b6b6d0f66652e482567f
  F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
  F src/fkey.c b9ca262f6ad4d030a3cab737ebf9b0b3c8b4ac80
  F src/func.c 7057bc2c105b82faa668d8e2ec85fad4540e5c51
@@@ -387,7 -387,7 +387,7 @@@ F src/printf.c a5f0ca08ddede803c241266a
  F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
  F src/resolve.c bb070cf5f23611c44ab7e4788803684e385fc3fb
  F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
- F src/select.c 0a7c523d755bcd39ae54f6a44bb66a7f0e1d89b3
 -F src/select.c 04fd717fb99aea2110b752e2b6186b966fa13cb4
++F src/select.c 672b1af237ad257149fc5189f3277dcbca036eeb
  F src/shell.c f04e4af75c5517735397d060ed0b4a874104bb41
  F src/sqlite.h.in 803f7050f69b2eea573fac219f3c92582c096027
  F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
@@@ -1532,8 -1532,7 +1532,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 46e0016207b8e7df2ae6c7491fd0f3c2926eed21 1a587d72f981cb7064cfd8916a52a83ad9ba6074
- R d4149095f37aacb5dfcbf6f677226eee
- T +closed 1a587d72f981cb7064cfd8916a52a83ad9ba6074
 -P 6e2e9d383f5fc4a0cbf05fe83ec7425812c0f556 46e0016207b8e7df2ae6c7491fd0f3c2926eed21
 -R 26a0853ee10a2e1398c5cc3ecf04db09
 -U dan
 -Z 0ff63d3cd68908d9e7f9837c3ad40428
++P 925840cfdb969a76640a1247cc4a7b2c0de5cb74 dd62d2de6eb12dc1902d6df050c395b1dcac01b4
++R 710cd32b5d7d9f26ab9c8738e2187743
++T +closed dd62d2de6eb12dc1902d6df050c395b1dcac01b4
 +U drh
- Z 89ee46a4d9ea247735e0710261d136a5
++Z 2fa3093086a563b78a5be35466f1815c

diff --cc manifest.uuid
index 8ea474f61b228d31376c90b3161263818e150260,ed2e3fd5e64be0fdd5f7e2b39c11312d1fe42119..438f434a70711c3c97bfbbbc648a239e9632441f
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 925840cfdb969a76640a1247cc4a7b2c0de5cb74
 -dd62d2de6eb12dc1902d6df050c395b1dcac01b4
++b835cf3e507b910b6a3e0f802ce2c40a72d0c227

diff --cc src/expr.c
Simple merge

diff --cc src/select.c
Simple merge