Avoid creating a temp table in the user database in the sqlite3_expert code.

FossilOrigin-Name: 4e366996434e63f06cc451d2011f1f1464360f03430b8260e48f78a612b4e9d6

diff --cc manifest
index e63525e54ca1f022c14808aeb5db6220dd42d6cf,78e4264cc9073d72a4c4e88990fa31882e4b726e..81277ab60b30956ddedb2bda34312a0d01b7731d
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Avoid\sadding\sINTEGER\sPRIMARY\sKEY\scolumns\sto\scandidate\sindexes.
- D 2017-04-20T16:18:43.967
 -C Speed\sthis\sbranch\sup\sa\sbit\sby\sfiltering\sbefore\sthe\svirtual\stable\slayer\swhen\nsampling\suser\sdata.
 -D 2017-04-20T16:43:32.927
++C Avoid\screating\sa\stemp\stable\sin\sthe\suser\sdatabase\sin\sthe\ssqlite3_expert\scode.
++D 2017-04-20T17:03:32.652
  F Makefile.in 1cc758ce3374a32425e4d130c2fe7b026b20de5b8843243de75f087c0a2661fb
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc 6a8c838220f7c00820e1fc0ac1bccaaa8e5676067e1dbfa1bafa7a4ffecf8ae6
@@@ -1579,7 -1579,7 +1579,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P c69c3e21db6e141f7e24226c6432f2ed31fe5f177bd23781915871f8600ee56a
- R 755161800d19d245e3f0050f91b54ff6
 -P c62e358243d96cb38a7ce2aa679fc640b62bf46080eab4bd5fc2acf5997d6cd5
++P 4577fea5cd9d91ea241e9be82797ca1a4447f536e1e4b78a4a569aeb52e78fcb 8e57c31340dd9ffc457da63c5996fb1b573f8154f864ec2b52c15f399906ac8b
+ R 73307a63b82b2606f65f28fc989fd3ae
  U dan
- Z c9b10ac09e4b6010a00208af302face2
 -Z b05e3391f67ce73794363163fdd05070
++Z a6caf6a2d1f5541a0691d13e2a47ea26

diff --cc manifest.uuid
index a34fd3239d01decae2610a30d8d27362f176e52a,a17ccd88b92b6b1d966a0b7ae4140903d28852c9..7dc88187b639aed9681ac92f4a5fb3b8ad488dcf
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 4577fea5cd9d91ea241e9be82797ca1a4447f536e1e4b78a4a569aeb52e78fcb
 -8e57c31340dd9ffc457da63c5996fb1b573f8154f864ec2b52c15f399906ac8b
++4e366996434e63f06cc451d2011f1f1464360f03430b8260e48f78a612b4e9d6