diff --git a/manifest b/manifest
index 79c04c9634..38c57ff5c4 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C When\stwo\stables\sare\sjoined\sby\sUSING,\sthe\saffinity\sof\sthe\sjoin\scolumn\scan\nbe\sthe\saffinity\sof\sthe\scorresponding\scolumn\sin\seither\stable.\s\sBut\sit\smust\nbe\sone\sor\sthe\sother.
-D 2026-05-16T19:40:55.080
+C When\stwo\stables\sare\sjoined\sby\sUSING,\sthe\saffinity\sand\scollating\ssequence\sof\nthe\sjoin\scolumn\swill\sbe\sthe\ssame\sas\sone\sor\sthe\sother\sof\sthe\scolumns\sin\sthe\ntwo\stables\s(which\sare\shopefully\sthe\ssame).
+D 2026-05-16T20:21:55.055
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -734,7 +734,7 @@ F src/pragma.c 789ef67117b74b5be0a2db6681f7f0c55e6913791b9da309aefd280de2c8a74d
 F src/prepare.c 084a037fd3810cb7ffbfc001cd58c0ffac68ba36598a5084b55ea2a090014ebd
 F src/printf.c 7085e8504f519cf6cb23a84572f785b259769907fef94bbf90ef0a5a533ab89f
 F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
-F src/resolve.c 3383354aa86f2bfcc867da24efb0e3865cad436bded234c25a5e25183c45cb76
+F src/resolve.c 11134922dfc2c89d10c658a1ae9ae9e1af0df031d40b9e9171dc14d3f2e6d80f
 F src/rowset.c 8432130e6c344b3401a8874c3cb49fefe6873fec593294de077afea2dce5ec97
 F src/select.c 4c05cde130f26991b7411d8c6809e0630625e18078742c963a047b4b9cc01d49
 F src/shell.c.in 9827c3a059dc5ffe17770e7f80d92988462f80a35486b84197cb4372dd9fd8c6
@@ -1348,7 +1348,7 @@ F test/joinD.test 2ce62e7353a0702ca5e70008faf319c1d4686aa19fba34275c6d1da0e960be
 F test/joinE.test d5d182f3812771e2c0d97c9dcf5dbe4c41c8e21c82560e59358731c4a3981d6b
 F test/joinF.test 53dd66158806823ea680dd7543b5406af151b5aafa5cd06a7f3231cd94938127
 F test/joinH.test 1d2fc3190be68525fd9ce749b9468c40ba2930181e52fb5ee6f836051b38effb
-F test/joinI.test dd429893102187e8df0bb30ad1e9f85732158055d96eee8a12587988417d3fe4
+F test/joinI.test f5e8613c3262f056c56249cc98255bf5fa1a764d7667b8ceb9fe08b4c965f061
 F test/journal1.test bc61a4228db11bffca118bd358ba4b868524bf080f3532749de6c539656e20fa
 F test/journal2.test 9dac6b4ba0ca79c3b21446bbae993a462c2397c4
 F test/journal3.test e5aeff93a7776cf644dbc48dec277655cff80a1cd24689036abc87869b120ea6
@@ -2205,8 +2205,8 @@ F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee
 F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
 F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
-P 9be94e961457967408cbd0acf11877fbb323a48eee405fff53755770f1b3261a
-R f4a5ff99991f6d9cbeccb11fa4c77652
+P 8cc0b52cca2d6b155b4b169e6f9de9e7d2dc61c40f89920c2b6bf86e549ab6f7
+R 6d896738349278127a88d5cdadd5a083
 U drh
-Z 1ea79e268f102209d2e3b093c77b1a9e
+Z 9ae5d8d40405d35095570ad39497e5b8
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 64152e3260..43a1447d90 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-8cc0b52cca2d6b155b4b169e6f9de9e7d2dc61c40f89920c2b6bf86e549ab6f7
+cbb6f72c10b1224088b9d604a0e014e7020e8d79a317ebb4af420ba3b72f40cc
diff --git a/src/resolve.c b/src/resolve.c
index dce1744fa0..64b20f6b70 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -774,7 +774,7 @@ static int lookupName(
         pExpr->op = TK_FUNCTION;
         pExpr->u.zToken = "coalesce";
         pExpr->x.pList = pFJMatch;
-        pExpr->affExpr = sqlite3ExprAffinity(pFJMatch->a[0].pExpr);
+        pExpr->affExpr = SQLITE_AFF_DEFER;
         cnt = 1;
         goto lookupname_end;
       }else{
diff --git a/test/joinI.test b/test/joinI.test
index 8a5572caaa..b677320454 100644
--- a/test/joinI.test
+++ b/test/joinI.test
@@ -218,8 +218,34 @@ reset_db
 do_execsql_test 8.0 {
   CREATE TABLE t1(x REAL);
   CREATE TABLE t2(x REAL);
-  INSERT INTO t1 VALUES(1.0);
-  SELECT count(*) FROM t1 FULL JOIN t2 USING(x) WHERE x='1';
-} 1
+  INSERT INTO t1 VALUES(2.5);
+  INSERT INTO t2 VALUES(2.5);
+  SELECT x FROM t1 JOIN t2 USING(x) WHERE x='2.5';
+} 2.5
+do_execsql_test 8.1 {
+  SELECT x FROM t1 LEFT JOIN t2 USING(x) WHERE x='2.5';
+} 2.5
+do_execsql_test 8.2 {
+  SELECT x FROM t1 RIGHT JOIN t2 USING(x) WHERE x='2.5';
+} 2.5
+do_execsql_test 8.3 {
+  SELECT x FROM t1 FULL JOIN t2 USING(x) WHERE x='2.5';
+} 2.5
+do_execsql_test 8.10 {
+  CREATE TABLE t3(x TEXT COLLATE nocase);
+  CREATE TABLE t4(x TEXT COLLATE nocase);
+  INSERT INTO t3 VALUES('abc');
+  INSERT INTO t4 VALUES('ABC');
+  SELECT lower(x) FROM t3 JOIN t4 USING(x) WHERE x='Abc';
+} abc
+do_execsql_test 8.11 {
+  SELECT lower(x) FROM t3 LEFT JOIN t4 USING(x) WHERE x='Abc';
+} abc
+do_execsql_test 8.12 {
+  SELECT lower(x) FROM t3 RIGHT JOIN t4 USING(x) WHERE x='Abc';
+} abc
+do_execsql_test 8.13 {
+  SELECT lower(x) FROM t3 FULL JOIN t4 USING(x) WHERE x='Abc';
+} abc
 
 finish_test