Experimental opimizations to speed up FK constraint CASCADE and SET NULL action proce...

FossilOrigin-Name: 8c5dd6cc259e0cdaaddaa52ccfa96fee6b166906

diff --cc manifest
index 269b2e6b455f23f642dd98e523cf7aabb5369611,ec31cc9e8ac0263c7a2e22f2af64e1f5d860d03f..1752ddd915e3c78f09ef048ab175c173c886c93b
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Fix\sthe\se_walauto.test\sscript\sso\sthat\sit\sworks\son\swindows.
- D 2014-12-16T12:46:38.635
 -C Fix\ssome\scomments\sin\sfkey.c.\sAdd\stests\sto\sfkey8.test.
 -D 2014-12-17T14:38:45.643
++C Experimental\sopimizations\sto\sspeed\sup\sFK\sconstraint\sCASCADE\sand\sSET\sNULL\saction\sprocessing.
++D 2014-12-17T15:03:50.611
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 6c4f961fa91d0b4fa121946a19f9e5eac2f2f809
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1232,7 -1233,7 +1233,7 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P ae43539e62e76676a3daf561b629a1b9b4e2d2c9
- R 6cb5309eecfa4835aff26790e68b0f80
- U drh
- Z 6fc407d3934d070a5bb755e43a0ba0ad
 -P 35a20a5f22245c70faa51965951e8cc011defa93
 -R c39a2128ba39a16276f2dc7a158fbe28
++P 7d092ebb6724c3c0fdc05dc94ca767d158933fb5 210cb2a6aaf780365064a26c0c99926bd6346e19
++R 2edc2fe620223f33e078e9395972a943
+ U dan
 -Z 96b8a9e537739194255aed7e579f65ad
++Z c2959ecd9d3a1afd4baaa55723226ea7

diff --cc manifest.uuid
index fd507f2f2360e4cd276197da712f357f0b6d4e9d,367ac4e6aaad3a1fd6bdadc6c7df42da550f635e..ee9030a0e4bb37510d9477276f0c0c918bd248c2
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 7d092ebb6724c3c0fdc05dc94ca767d158933fb5
 -210cb2a6aaf780365064a26c0c99926bd6346e19
++8c5dd6cc259e0cdaaddaa52ccfa96fee6b166906