Enhance the percentile extension to support percentile_cont() and

percentile_disc().  Add support for ordered-set aggregate notation in
the parser when compiling with SQLITE_ENABLE_ORDERED_SET_AGGREGATES.  A
new function property SQLITE_SELFORDER1 must appear on any aggregate function
that wants to take advantage of the ordered-set aggregate notation.

FossilOrigin-Name: 557bd245ef24af15da1374762bbeb9b8b0241da06e604efdf00d567a9ed09216

diff --cc manifest
index cec2fd4ce8dcc4dbf536a3fc0008e1b9e244c13d,c3fb0bad7a7754644ffb7df7b227c3b39ca4b776..cce3a0815cc4913cecc14a7414e9f9c227ed22ef
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Improved\ssort\sfunction\sin\sthe\spercentile\sextension.
- D 2024-09-01T18:54:31.153
 -C Improved\serror\smessages\son\spercentile\sfunctions.\s\sMore\stests\scases\sfor\npercentile\sand\sfor\sordered-set\saggregates.
 -D 2024-09-02T11:17:04.726
++C Enhance\sthe\spercentile\sextension\sto\ssupport\spercentile_cont()\sand\npercentile_disc().\s\sAdd\ssupport\sfor\sordered-set\saggregate\snotation\sin\s\nthe\sparser\swhen\scompiling\swith\sSQLITE_ENABLE_ORDERED_SET_AGGREGATES.\s\sA\nnew\sfunction\sproperty\sSQLITE_SELFORDER1\smust\sappear\son\sany\saggregate\sfunction\nthat\swants\sto\stake\sadvantage\sof\sthe\sordered-set\saggregate\snotation.
++D 2024-09-02T12:07:37.155
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -2211,8 -2211,8 +2211,8 @@@ F vsixtest/vsixtest.tcl 6195aba1f12a5e1
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 54313f74b24c46f1afa1ff082ef569fa46938527095be358015e7047e17702ac
- R b41846f3df9dc87b92ce32e03786ab20
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++P 9f84e8d59bcda642e732565e840f6a880a01b2fc65af2651248f6a8a6e1cb65a e1bca168e70335fa2f9537632fd16e374c566a564fab4974c0b8f61cb63d08ce
+ R a80c34160df19b1603ad0e7833a0d0c3
  U drh
- Z 1672856efafeb853be5cf9a4114de044
 -Z baa1dd0d6096edf0ada0dc3da2ddafed
++Z bcaae55c6dbf3569256cb9e1e280cac1
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 888095dab4ff2d96a5b55e299d78236bd971cca2,126ce65bc7d78073afc2ed2aecdf54839e347364..dfe5de4fea7c833cd598e6436c9c4ee940b9cdcc
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 9f84e8d59bcda642e732565e840f6a880a01b2fc65af2651248f6a8a6e1cb65a
 -e1bca168e70335fa2f9537632fd16e374c566a564fab4974c0b8f61cb63d08ce
++557bd245ef24af15da1374762bbeb9b8b0241da06e604efdf00d567a9ed09216