Load enhancements from trunk into the returning branch.

FossilOrigin-Name: b84c7f60c2e1e7debf9f50622087f87d60c6870061d61e14e59cc1ba0775ee92

diff --cc manifest
index 81bc47332a219134372f18132d781066e6831640,5463576ba64879da2908781fa61bafcf810b95dc..8baca9a5526d11b2c45dd4adc6e857086d0ac089
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Do\snot\sallow\saggregates\sin\sa\sRETURNING\sclause.\s\sFix\sa\smemory\sleak\sthat\noccurs\swhen\swindow\sfunctions\sare\sused\sin\sa\sRETURNING\sclause.
- D 2021-02-02T20:46:11.972
 -C Modify\sthe\ssessions\sextension\sto\suse\smore\sefficient\sSQL\swhen\sapplying\sa\schangeset\sor\spatchset.
 -D 2021-02-02T20:41:13.378
++C Load\senhancements\sfrom\strunk\sinto\sthe\sreturning\sbranch.
++D 2021-02-03T00:05:57.450
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -482,21 -482,21 +482,21 @@@ F src/auth.c 8d1df0e2ef8bafbedd4f1fe4ba
  F src/backup.c 3014889fa06e20e6adfa0d07b60097eec1f6e5b06671625f476a714d2356513d
  F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
  F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
- F src/btree.c 47d9fe97d5c0d74506154e3597f8a23b81a00080751dc4d11fec91ee22796f4c
+ F src/btree.c 4da25694985ac8f5f714bfa58a6cd453f9161d7da9394a95605aaa4db2752757
  F src/btree.h 285f8377aa1353185a32bf455faafa9ff9a0d40d074d60509534d14990c7829e
  F src/btreeInt.h 7614cae30f95b6aed0c7cac7718276a55cfe2c77058cbfd8bef5b75329757331
 -F src/build.c d4c06261b0e532523ede58dc511381a7a9c155132e4b65a6bb2ff76fe657793a
 +F src/build.c 118e1076282415229420d04f9cc25bb148a2c412d82ea3c319136d2122c842e5
  F src/callback.c d0b853dd413255d2e337b34545e54d888ea02f20da5ad0e63585b389624c4a6c
  F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
  F src/ctime.c 2a322b9a3d75771fb4d99e0702851f4f68dda982507a0f798eefb0712969a410
  F src/date.c dace306a10d9b02ee553d454c8e1cf8d3c9b932e137738a6b15b90253a9bfc10
  F src/dbpage.c 8a01e865bf8bc6d7b1844b4314443a6436c07c3efe1d488ed89e81719047833a
  F src/dbstat.c 3aa79fc3aed7ce906e4ea6c10e85d657299e304f6049861fe300053ac57de36c
 -F src/delete.c 927cf8f900583e79aca8f1a321979e0a8f053babd9a690b44b38f79de2cc09fe
 +F src/delete.c 352ea931218c45a3daf17472d4141b9c7fc026d85da3f1ade404ea5bb6d67f77
  F src/expr.c 47c85263e6d179424e6b09e2c79db5704ab5b8cbc2fae2ee3285faa2566f2e74
  F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
 -F src/fkey.c 83372403298e6a7dd989a47aaacdbaa5b4307b5199dbd56e07d4896066b3de72
 +F src/fkey.c 02e4a3311885cd2b31eb17fd58dc2fc738cd2c823d0d39e4dd5595169c6f8bc3
- F src/func.c 796a7a4a0ff5eee82a04ee3c8265c5ebf9c6a9f5625621c5f97ed94f6224d7d9
+ F src/func.c 2ea99e9e0531b7f020d5e8e167d25344d618afc718ddc94dd91fa8fef1c85a91
  F src/global.c ed55af196a9b66e198aaeda3f5454c3aa7d7d050c6c938181fd044b70d180a81
  F src/hash.c 8d7dda241d0ebdafb6ffdeda3149a412d7df75102cecfc1021c98d6219823b19
  F src/hash.h 9d56a9079d523b648774c1784b74b89bd93fac7b365210157482e4319a468f38
@@@ -1899,7 -1898,7 +1899,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P bd5dee8425327fde0429043ce325b910f1b7951988d9a448a8eeeb713a46bc81
- R cd87aa40fae996ae8358e0b84594bda6
 -P 5d54d9fd406381383afdf10612bfd590afc4142215d9bca09e227e3aa5baa102
 -R d44cc6b5db574b719ae909c431a63549
 -U dan
 -Z 32b2c74d653dfa71fce784320ccf15ed
++P 2e9bd94b9ad37c7e4123b7324f2fe42d3609a65af449eb8a0064057647709a73 e4ccfac09b6fe8cc3aec29d10f4e4c83097964f29882343db52ed91f6f0dde1c
++R 189e18b39cf3d0cb3ef657405a5431b5
 +U drh
- Z 25e8d0af3fd413c8e6c9d01783338232
++Z 8f661fe5807957ca703992c48d933956

diff --cc manifest.uuid
index fec5166aaa92df371fada2a71817673b0dce6388,2cd9cb75726ee4f705b9a434f2c0f2ce91f4b7a4..53886e64e3c59cce2dc2996c8722e118c81b838f
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 2e9bd94b9ad37c7e4123b7324f2fe42d3609a65af449eb8a0064057647709a73
 -e4ccfac09b6fe8cc3aec29d10f4e4c83097964f29882343db52ed91f6f0dde1c
++b84c7f60c2e1e7debf9f50622087f87d60c6870061d61e14e59cc1ba0775ee92