Improved performance and stack usage when processing VALUES clauses with

a very large number of rows.

FossilOrigin-Name: 5706d4708a30eb54da0ecbb6eb02f54746c390d9

diff --cc manifest
index b4fd3e2062ff786ff7c088662ff7ab4f5fe6a593,9a2d78f7e174f57c34d5d1f831376334863fa53b..9df6e76bf0d457024632bda6c8e98dede5e9d67d
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Improved\stests\sfor\sthe\scarray()\stable-valued\sfunction.
- D 2017-02-03T15:16:25.769
 -C Avoid\sa\sperformance\sproblem\swhen\svery\slarge\s"VALUES(..),\s(..),\s(..)"\sterms\sare\nused\sin\squeries.
 -D 2017-02-03T19:16:39.919
++C Improved\sperformance\sand\sstack\susage\swhen\sprocessing\sVALUES\sclauses\swith\na\svery\slarge\snumber\sof\srows.
++D 2017-02-03T20:54:57.815
  F Makefile.in 5f415e7867296d678fed2e6779aea10c1318b4bc
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc ba953c8921fc7e18333f61898007206de7e23964
@@@ -1552,7 -1552,7 +1552,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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diff --cc manifest.uuid
index 14c0befdff58b03b0001aafb8c6f903c883ddebd,c0409900d61d0d1dd49befc53543df48b577210a..fa2ce116388850131c479d7a5dcd21d5af928ca9
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 83a099f139aba03edac19c890a0019e922032a25
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++5706d4708a30eb54da0ecbb6eb02f54746c390d9