High-speed version of NGQP. Still has some minor problems.

FossilOrigin-Name: db2415fa677b84cd0f6dd424283c94e98d246e3b

manifest

@@ -1,5 +1,5 @@
-C Must\sfaster\scomputation\sof\sestimated\slogarithm.
-D 2013-06-07T02:04:19.774
+C High-speed\sversion\sof\sNGQP.\s\sStill\shas\ssome\sminor\sproblems.
+D 2013-06-09T17:21:25.979
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5e41da95d92656a5004b03d3576e8b226858a28e
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -289,7 +289,7 @@ F src/vtab.c b05e5f1f4902461ba9f5fc49bb7eb7c3a0741a83
 F src/wal.c 436bfceb141b9423c45119e68e444358ee0ed35d
 F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
 F src/walker.c 4fa43583d0a84b48f93b1e88f11adf2065be4e73
-F src/where.c 70e1ebd1c3f828f4062fc2b5ada2461419020dae
+F src/where.c 2dae18fe0b79aa90f213c5f2ff385a7ac56d36d5
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
 F test/aggnested.test 45c0201e28045ad38a530b5a144b73cd4aa2cfd6
@@ -1094,7 +1094,10 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
-P 02741d177bfc2fca23bc99974cd899eba13cb59a
-R 8ee17766ef9ac6851fd1329c34593963
+P dfbca3acaeb862f24f25e7810a16ff2066111ff4
+R e3ea6bb6c8cd62c47ea6f6e83f99515a
+T *branch * nextgen-query-plan-fast
+T *sym-nextgen-query-plan-fast *
+T -sym-nextgen-query-plan-exp *
 U drh
-Z adf16c6d5fc0c897d258a12782d83ad0
+Z 13597db4c2da76541af04a4f735ffed4