Remove an unnecessary column-cache flush operation. Add code to trace the

column cache when compiled with SQLITE_DEBUG and using
PRAGMA vdbe_addoptrace=ON.

FossilOrigin-Name: 58704ed1f4cd78bb3b0c095ffd1626906a95a413

diff --cc manifest
index ce19a94c13ba42a0409e029abdecf58aa63e6032,f61e471ae16f00139bec122154374d5e79466442..a1d9fbcef1d306c1e4126f6824e8eefc168ff7b3
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Add\sevidence\smarks\sand\sadditional\stest\scases\sfor\sthe\sprintf()\sSQL\sfunction.
- D 2013-12-17T16:32:56.710
 -C Remove\san\sunnecessary\scolumn-cache\sflush.\s\sAdd\sanother\stest\scase\sto\sthe\nspeedtest1.c\sprogram\sto\saccentuate\sthe\sbenefit\sof\snot\sflushing\sthe\scache\sat\nthat\spoint.
 -D 2013-12-18T16:27:48.409
++C Remove\san\sunnecessary\scolumn-cache\sflush\soperation.\s\sAdd\scode\sto\strace\sthe\ncolumn\scache\swhen\scompiled\swith\sSQLITE_DEBUG\sand\susing\nPRAGMA\svdbe_addoptrace=ON.
++D 2013-12-18T18:44:43.134
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 2ef13430cd359f7b361bb863504e227b25cc7f81
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1147,7 -1147,7 +1147,8 @@@ F tool/vdbe-compress.tcl 0cf56e9263a152
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
  F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
- P a1bb62f91a85af0584100c3ad77877a949c30cca
- R 69f0b68d0886123f335b52e69a6c748f
 -P 4c6a659c432e4f7c0285f58675a67f967b07bb0d
++P 93121d3097a43997af3c0de65bd9bd7663845fa2 97fdfc6b79833011fc0c506fe5e0985c0fb1906c
+ R ad4bcfdba61e39f0bb9e7693f91a62e0
++T +closed 97fdfc6b79833011fc0c506fe5e0985c0fb1906c
  U drh
- Z 3ce3ba9d696aa32fcf98b10717e459c0
 -Z e871bbf1438be1f459e194c32e33e3c1
++Z d67945416ae9c517bb5d46293eed5eb3

diff --cc manifest.uuid
index 5e71d304d7472db0f02cd97eeb74a8d456a82c9a,b451c0355a456f0dbfff945a04bd44d6dab42ec8..c14fd41eab41af10b6fd161327fc355562ee4ce8
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 93121d3097a43997af3c0de65bd9bd7663845fa2
 -97fdfc6b79833011fc0c506fe5e0985c0fb1906c
++58704ed1f4cd78bb3b0c095ffd1626906a95a413