diff --git a/pkg/sql/logictest/testdata/logic_test/typing b/pkg/sql/logictest/testdata/logic_test/typing
index 47a48b5102ea..29ffac49ef69 100644
--- a/pkg/sql/logictest/testdata/logic_test/typing
+++ b/pkg/sql/logictest/testdata/logic_test/typing
@@ -221,3 +221,10 @@ query I
 SELECT NULLIF(0, NULL) + NULLIF(0, NULL)
 ----
 0
+
+# Regression test for #46196.
+query error ambiguous call: max\(unknown\)
+SELECT MAX(t0.c0) FROM (VALUES (NULL), (NULL)) t0(c0)
+
+query error ambiguous call: max\(unknown\)
+SELECT MAX(NULL) FROM (VALUES (NULL), (NULL)) t0(c0)
diff --git a/pkg/sql/opt/optbuilder/testdata/aggregate b/pkg/sql/opt/optbuilder/testdata/aggregate
index a683a3e073a9..ec0b9366e774 100644
--- a/pkg/sql/opt/optbuilder/testdata/aggregate
+++ b/pkg/sql/opt/optbuilder/testdata/aggregate
@@ -3839,3 +3839,26 @@ project
                      │              └── b:3
                      └── projections
                           └── (max:4, unnest:1) [as="?column?":6]
+
+# Regression test for #46196.
+build
+SELECT MAX(t0.c0) FROM (VALUES (NULL), (NULL)) t0(c0);
+----
+error (42725): ambiguous call: max(unknown), candidates are:
+max(int) -> int
+max(float) -> float
+max(decimal) -> decimal
+max(date) -> date
+max(timestamp) -> timestamp
+max(interval) -> interval
+max(string) -> string
+max(bytes) -> bytes
+max(timestamptz) -> timestamptz
+max(oid) -> oid
+max(uuid) -> uuid
+max(inet) -> inet
+max(time) -> time
+max(timetz) -> timetz
+max(jsonb) -> jsonb
+max(varbit) -> varbit
+max(bool) -> bool
diff --git a/pkg/sql/sem/tree/type_check.go b/pkg/sql/sem/tree/type_check.go
index 792eabeb8c4b..f26566e96a58 100644
--- a/pkg/sql/sem/tree/type_check.go
+++ b/pkg/sql/sem/tree/type_check.go
@@ -848,9 +848,10 @@ func (expr *FuncExpr) TypeCheck(ctx *SemaContext, desired *types.T) (TypedExpr,
 	}
 
 	// Return NULL if at least one overload is possible, no overload accepts
-	// NULL arguments, the function isn't a generator builtin, and NULL is given
-	// as an argument.
-	if !def.NullableArgs && def.FunctionProperties.Class != GeneratorClass {
+	// NULL arguments, the function isn't a generator or aggregate builtin, and
+	// NULL is given as an argument.
+	if !def.NullableArgs && def.FunctionProperties.Class != GeneratorClass &&
+		def.FunctionProperties.Class != AggregateClass {
 		for _, expr := range typedSubExprs {
 			if expr.ResolvedType().Family() == types.UnknownFamily {
 				return DNull, nil