Improved reuse of subqueries associated with IN operators, especially when

the IN operator is duplicated due to predicate push-down.

FossilOrigin-Name: c9a3498113074bbcd9a8c8d30286fef6c6a49ad2c84b90ec0f5a148389d6245c

diff --cc manifest
index e9c314df02e91ae069e92d185c2efa9d10727b4e,f10a9394b1fe1ac7c307208925810fc4ea900de2..70b8f686e30c1090b986b02a54ec6e0c80d43523
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Add\scomment\susing\sthe\sname\s"predicate\spush-down\soptimization"\sto\swhat\swe\shave\nalso\scalled\s"WHERE-clause\spush\sdown".\s\sNo\schanges\sto\scode.
- D 2024-07-04T11:15:32.292
 -C Small\sperformance\soptimizations.
 -D 2024-07-05T01:05:34.326
++C Improved\sreuse\sof\ssubqueries\sassociated\swith\sIN\soperators,\sespecially\swhen\nthe\sIN\soperator\sis\sduplicated\sdue\sto\spredicate\spush-down.
++D 2024-07-05T09:56:11.351
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -2195,8 -2195,8 +2195,9 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P a204ffc06b468c2edf8f11ccf3de639edd4f8282e69a44ceeb68a4d3a43e77ea
- R 7ddaa7e2074acfdf6d0130f12e8505c2
 -P 07817efc10a6ab59dcb18ad218a3bb5a5d49a724c51296d5c8d7e386b0e0c789
++P be77fe701c7b7d3407800e1ed6a4c8be14035831790419cc99362bff41c65b60 99fd34b58a9b09af20f1f1a3c37137ae55159310c8af97806550eeee6adc4fc5
+ R c2554732fd5d00a4bc9161c1ecfc2ecd
++T +closed 99fd34b58a9b09af20f1f1a3c37137ae55159310c8af97806550eeee6adc4fc5
  U drh
- Z 940dec88e4e92fbd5a212ce2f1e6eedc
 -Z 928bbdf1e85848abd4aedfefb3089955
++Z 4e117d1a68420f4abee82559a7eb0fa4
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 3c3a8a55607555708254fc3c2c6b0d791e581df2,52d551e6bdb5b5090b3e31a02b983e237ba3cb00..38e9ad1c61f3f3c5f883bb88e5930a194d3058dd
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- be77fe701c7b7d3407800e1ed6a4c8be14035831790419cc99362bff41c65b60
 -99fd34b58a9b09af20f1f1a3c37137ae55159310c8af97806550eeee6adc4fc5
++c9a3498113074bbcd9a8c8d30286fef6c6a49ad2c84b90ec0f5a148389d6245c