From 3117b7b081d782c5da91da94a03cf135ed05533d Mon Sep 17 00:00:00 2001
From: drh <>
Date: Tue, 19 Apr 2022 18:23:01 +0000
Subject: [PATCH] Fix a NULL-pointer dereference that can occur on an aggregate
 query that uses FULL JOIN.  dbsqlfuzz
 496a35dd4eefcd7935aaaeb0c69056bf49785d28.

FossilOrigin-Name: 63b8f8aec2a9ac3fbbd02715aa308eaf43c9ffde9d7c6db026d46edc575e7bdd
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/select.c  |  4 +++-
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/manifest b/manifest
index 0ed381f292..2052de4c10 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Mark\san\sunreachable\s"just-in-case"\sbranch\sas\sunreachable.
-D 2022-04-19T15:56:03.282
+C Fix\sa\sNULL-pointer\sdereference\sthat\scan\soccur\son\san\saggregate\squery\sthat\nuses\sFULL\sJOIN.\s\sdbsqlfuzz\s496a35dd4eefcd7935aaaeb0c69056bf49785d28.
+D 2022-04-19T18:23:01.497
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -552,7 +552,7 @@ F src/printf.c 05d8dfd2018bc4fc3ddb8b37eb97ccef7abf985643fa1caebdcf2916ca90fa32
 F src/random.c 097dc8b31b8fba5a9aca1697aeb9fd82078ec91be734c16bffda620ced7ab83c
 F src/resolve.c a3d58967025858f0f61b7b5d6c45914650acce05c33e4379a43ca4d042a68573
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
-F src/select.c 50051eee5a598bd4ec5e47daeb3e20294bb98002d3a8bd8adbb1fef2b47cd980
+F src/select.c 6fa15ee07a8da8198e74f0092f681dd5f572e9e14b756dd140e0bba18a53bed7
 F src/shell.c.in ecff6f4ab0e8e25acd578b3eb27ac0bad4d48643c160259a277151d6e9d412e1
 F src/sqlite.h.in 2a35f62185eb5e7ecc64a2f68442b538ce9be74f80f28a00abc24837edcf1c17
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
@@ -1950,8 +1950,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 78d58e461f99366d2749ccd6d02ab4cba0cab20bb80c097e7128da1e50303549
-R 8b7a68ba170d685963d5182430216b5b
+P b966d52437f08a6759a83a45cafb0d706a8933a8e55dee38ae78166d1a5b3ba4
+R 700d351d60353bc6a3752c8bca1af8cc
 U drh
-Z abc8af7302efb06e9c77f2c011b16ae4
+Z 79f7f3b783582a1aa6157ba5326441d3
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 79ca8ed8af..65ce384d8b 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b966d52437f08a6759a83a45cafb0d706a8933a8e55dee38ae78166d1a5b3ba4
\ No newline at end of file
+63b8f8aec2a9ac3fbbd02715aa308eaf43c9ffde9d7c6db026d46edc575e7bdd
\ No newline at end of file
diff --git a/src/select.c b/src/select.c
index a59e50674e..6ebc1dc3cb 100644
--- a/src/select.c
+++ b/src/select.c
@@ -7606,7 +7606,9 @@ int sqlite3Select(
         updateAccumulator(pParse, regAcc, pAggInfo, eDist);
         if( eDist!=WHERE_DISTINCT_NOOP ){
           struct AggInfo_func *pF = &pAggInfo->aFunc[0];
-          fixDistinctOpenEph(pParse, eDist, pF->iDistinct, pF->iDistAddr);
+          if( pF ){
+            fixDistinctOpenEph(pParse, eDist, pF->iDistinct, pF->iDistAddr);
+          }
         }
 
         if( regAcc ) sqlite3VdbeAddOp2(v, OP_Integer, 1, regAcc);