diff --git a/pkg/ccl/schemachangerccl/testdata/explain/drop_database_multiregion_primary_region b/pkg/ccl/schemachangerccl/testdata/explain/drop_database_multiregion_primary_region
index 78bbabddcb45..b4e64e1517a8 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain/drop_database_multiregion_primary_region
+++ b/pkg/ccl/schemachangerccl/testdata/explain/drop_database_multiregion_primary_region
@@ -74,7 +74,6 @@ Schema change plan for DROP DATABASE ‹multi_region_test_db› CASCADE;
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── RemoveBackReferenceInTypes {"BackReferencedDescriptorID":108}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -97,6 +96,7 @@ Schema change plan for DROP DATABASE ‹multi_region_test_db› CASCADE;
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"admin"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":108}
  │              ├── MarkDescriptorAsDropped {"DescriptorID":104}
  │              ├── DrainDescriptorName {"Namespace":{"DatabaseID":104,"DescriptorID":105,"Name":"public"}}
  │              ├── NotImplementedForPublicObjects {"DescID":105,"ElementType":"scpb.Owner"}
@@ -234,7 +234,6 @@ Schema change plan for DROP DATABASE ‹multi_region_test_db› CASCADE;
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── RemoveBackReferenceInTypes {"BackReferencedDescriptorID":108}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -257,6 +256,7 @@ Schema change plan for DROP DATABASE ‹multi_region_test_db› CASCADE;
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"admin"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":108}
  │              ├── RemoveColumnNotNull {"ColumnID":1,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":108}
diff --git a/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion b/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion
index b88f724c4e0c..fb6b838ca30c 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion
+++ b/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion
@@ -42,7 +42,6 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.TablePartit..."}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -62,7 +61,8 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"admin"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
  │              ├── RemoveDroppedColumnType {"ColumnID":2,"TableID":108}
- │              └── UpdateTableBackReferencesInTypes {"BackReferencedTableID":108}
+ │              ├── UpdateTableBackReferencesInTypes {"BackReferencedTableID":108}
+ │              └── AssertColumnFamilyIsRemoved {"TableID":108}
  ├── PreCommitPhase
  │    ├── Stage 1 of 2 in PreCommitPhase
  │    │    ├── 27 elements transitioning toward ABSENT
@@ -130,7 +130,6 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.TablePartit..."}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -155,6 +154,7 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── RemoveColumnNotNull {"ColumnID":2,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":108}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":1,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":2,"TableID":108}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967295,"TableID":108}
diff --git a/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion_primary_region b/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion_primary_region
index 72243ccf86c9..082fe55545c6 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion_primary_region
+++ b/pkg/ccl/schemachangerccl/testdata/explain/drop_table_multiregion_primary_region
@@ -35,7 +35,6 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── RemoveBackReferenceInTypes {"BackReferencedDescriptorID":108}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -48,7 +47,8 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── DrainDescriptorName {"Namespace":{"DatabaseID":104,"DescriptorID":108,"Name":"table_regional_b...","SchemaID":105}}
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"admin"}
- │              └── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
+ │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
+ │              └── AssertColumnFamilyIsRemoved {"TableID":108}
  ├── PreCommitPhase
  │    ├── Stage 1 of 2 in PreCommitPhase
  │    │    ├── 20 elements transitioning toward ABSENT
@@ -101,7 +101,6 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── MarkDescriptorAsDropped {"DescriptorID":108}
  │              ├── RemoveObjectParent {"ObjectID":108,"ParentSchemaID":105}
  │              ├── RemoveBackReferenceInTypes {"BackReferencedDescriptorID":108}
- │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":108}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":108}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":108}
@@ -115,6 +114,7 @@ Schema change plan for DROP TABLE ‹multi_region_test_db›.‹public›.‹tab
  │              ├── NotImplementedForPublicObjects {"DescID":108,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"admin"}
  │              ├── RemoveUserPrivileges {"DescriptorID":108,"User":"root"}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":108}
  │              ├── RemoveColumnNotNull {"ColumnID":1,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":108}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":108}
diff --git a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_database_multiregion_primary_region b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_database_multiregion_primary_region
index 253301e0f1bc..872e05b70737 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_database_multiregion_primary_region
+++ b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_database_multiregion_primary_region
@@ -271,8 +271,17 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -407,10 +416,6 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │           │     TypeIDs:
 │           │     - 106
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -503,6 +508,9 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │           │     DescriptorID: 108
 │           │     User: root
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 108
+│           │
 │           ├── • MarkDescriptorAsDropped
 │           │     DescriptorID: 104
 │           │
@@ -997,8 +1005,17 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -1181,10 +1198,6 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │           │     TypeIDs:
 │           │     - 106
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -1277,6 +1290,9 @@ EXPLAIN (ddl, verbose) DROP DATABASE multi_region_test_db CASCADE;
 │           │     DescriptorID: 108
 │           │     User: root
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 108
+│           │
 │           ├── • RemoveColumnNotNull
 │           │     ColumnID: 1
 │           │     TableID: 108
diff --git a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion
index 7fb4e8ad4765..cf68b26eac69 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion
+++ b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion
@@ -64,8 +64,20 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ReferencedTypeIDs: [106 107], ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -224,10 +236,6 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     DescID: 108
 │           │     ElementType: scpb.TablePartitioning
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -314,11 +322,14 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     ColumnID: 2
 │           │     TableID: 108
 │           │
-│           └── • UpdateTableBackReferencesInTypes
-│                 BackReferencedTableID: 108
-│                 TypeIDs:
-│                 - 106
-│                 - 107
+│           ├── • UpdateTableBackReferencesInTypes
+│           │     BackReferencedTableID: 108
+│           │     TypeIDs:
+│           │     - 106
+│           │     - 107
+│           │
+│           └── • AssertColumnFamilyIsRemoved
+│                 TableID: 108
 │
 ├── • PreCommitPhase
 │   │
@@ -465,8 +476,20 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ReferencedTypeIDs: [106 107], ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -712,10 +735,6 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     DescID: 108
 │           │     ElementType: scpb.TablePartitioning
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -824,6 +843,9 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     ColumnID: 4294967294
 │           │     TableID: 108
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 108
+│           │
 │           ├── • MakeWriteOnlyColumnDeleteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
diff --git a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion_primary_region b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion_primary_region
index 07f7b5005556..95131beebdcb 100644
--- a/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion_primary_region
+++ b/pkg/ccl/schemachangerccl/testdata/explain_verbose/drop_table_multiregion_primary_region
@@ -58,8 +58,17 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -168,10 +177,6 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     TypeIDs:
 │           │     - 106
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -227,9 +232,12 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     DescriptorID: 108
 │           │     User: admin
 │           │
-│           └── • RemoveUserPrivileges
-│                 DescriptorID: 108
-│                 User: root
+│           ├── • RemoveUserPrivileges
+│           │     DescriptorID: 108
+│           │     User: root
+│           │
+│           └── • AssertColumnFamilyIsRemoved
+│                 TableID: 108
 │
 ├── • PreCommitPhase
 │   │
@@ -349,8 +357,17 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │       │   ├── • ColumnFamily:{DescID: 108, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 108}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 108}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 108, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 108, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -507,10 +524,6 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     TypeIDs:
 │           │     - 106
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 108
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 108
@@ -570,6 +583,9 @@ EXPLAIN (ddl, verbose) DROP TABLE multi_region_test_db.public.table_regional_by_
 │           │     DescriptorID: 108
 │           │     User: root
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 108
+│           │
 │           ├── • RemoveColumnNotNull
 │           │     ColumnID: 1
 │           │     TableID: 108
diff --git a/pkg/cli/testdata/declarative-rules/deprules b/pkg/cli/testdata/declarative-rules/deprules
index 484bc1470e84..ca58a6943285 100644
--- a/pkg/cli/testdata/declarative-rules/deprules
+++ b/pkg/cli/testdata/declarative-rules/deprules
@@ -1747,6 +1747,19 @@ deprules
     - $column-type-Node[CurrentStatus] = ABSENT
     - joinTargetNode($dependent, $dependent-Target, $dependent-Node)
     - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+- name: column type removed before column family
+  from: column-type-Node
+  kind: Precedence
+  to: column-family-Node
+  query:
+    - $column-type[Type] = '*scpb.ColumnType'
+    - $column-family[Type] = '*scpb.ColumnFamily'
+    - joinOnColumnFamilyID($column-type, $column-family, $table-id, $family-id)
+    - toAbsent($column-type-Target, $column-family-Target)
+    - $column-type-Node[CurrentStatus] = ABSENT
+    - $column-family-Node[CurrentStatus] = ABSENT
+    - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+    - joinTargetNode($column-family, $column-family-Target, $column-family-Node)
 - name: column type removed right before column when not dropping relation
   from: column-type-Node
   kind: SameStagePrecedence
diff --git a/pkg/sql/schemachanger/scexec/scmutationexec/column.go b/pkg/sql/schemachanger/scexec/scmutationexec/column.go
index d38d7b27a35c..035ea6f3ff3c 100644
--- a/pkg/sql/schemachanger/scexec/scmutationexec/column.go
+++ b/pkg/sql/schemachanger/scexec/scmutationexec/column.go
@@ -235,6 +235,22 @@ func (i *immediateVisitor) AddColumnFamily(ctx context.Context, op scop.AddColum
 	return nil
 }
 
+func (i *immediateVisitor) AssertColumnFamilyIsRemoved(
+	ctx context.Context, op scop.AssertColumnFamilyIsRemoved,
+) error {
+	tbl, err := i.checkOutTable(ctx, op.TableID)
+	if err != nil || tbl.Dropped() {
+		return err
+	}
+	for idx := range tbl.Families {
+		if tbl.Families[idx].ID == op.FamilyID {
+			return errors.AssertionFailedf("column family was leaked during schema change %v",
+				tbl.Families[idx])
+		}
+	}
+	return nil
+}
+
 func (i *immediateVisitor) SetColumnName(ctx context.Context, op scop.SetColumnName) error {
 	tbl, err := i.checkOutTable(ctx, op.TableID)
 	if err != nil || tbl.Dropped() {
diff --git a/pkg/sql/schemachanger/scexec/scmutationexec/scmutationexec.go b/pkg/sql/schemachanger/scexec/scmutationexec/scmutationexec.go
index 72a54b5ffcd6..b0ce655a2b55 100644
--- a/pkg/sql/schemachanger/scexec/scmutationexec/scmutationexec.go
+++ b/pkg/sql/schemachanger/scexec/scmutationexec/scmutationexec.go
@@ -57,9 +57,9 @@ func (i *immediateVisitor) NotImplementedForPublicObjects(
 	ctx context.Context, op scop.NotImplementedForPublicObjects,
 ) error {
 	desc := i.MaybeGetCheckedOutDescriptor(op.DescID)
-	if desc.Dropped() {
+	if desc == nil || desc.Dropped() {
 		return nil
 	}
-	return errors.AssertionFailedf("not implemented operation was hit " +
-		"unexpectedly, no dropped descriptor was found.")
+	return errors.AssertionFailedf("not implemented operation was hit "+
+		"unexpectedly, no dropped descriptor was found. %v", op.ElementType)
 }
diff --git a/pkg/sql/schemachanger/scop/immediate_mutation.go b/pkg/sql/schemachanger/scop/immediate_mutation.go
index d3f6e2a73673..9f080a255f04 100644
--- a/pkg/sql/schemachanger/scop/immediate_mutation.go
+++ b/pkg/sql/schemachanger/scop/immediate_mutation.go
@@ -429,6 +429,16 @@ type AddColumnFamily struct {
 	Name     string
 }
 
+// AssertColumnFamilyIsRemoved asserts that a column family is removed, which
+// is used as a validation to make sure that the family the element reaches
+// absent. The column family cleaned up with the last ColumnType element
+// referencing it.
+type AssertColumnFamilyIsRemoved struct {
+	immediateMutationOp
+	TableID  descpb.ID
+	FamilyID descpb.FamilyID
+}
+
 // AddColumnDefaultExpression adds a DEFAULT expression to a column.
 type AddColumnDefaultExpression struct {
 	immediateMutationOp
diff --git a/pkg/sql/schemachanger/scplan/internal/opgen/opgen_column_family.go b/pkg/sql/schemachanger/scplan/internal/opgen/opgen_column_family.go
index 389a0ffe28ec..08024eddfd93 100644
--- a/pkg/sql/schemachanger/scplan/internal/opgen/opgen_column_family.go
+++ b/pkg/sql/schemachanger/scplan/internal/opgen/opgen_column_family.go
@@ -11,6 +11,7 @@
 package opgen
 
 import (
+	"github.com/cockroachdb/cockroach/pkg/clusterversion"
 	"github.com/cockroachdb/cockroach/pkg/sql/schemachanger/scop"
 	"github.com/cockroachdb/cockroach/pkg/sql/schemachanger/scpb"
 )
@@ -34,8 +35,22 @@ func init() {
 			scpb.Status_PUBLIC,
 			to(scpb.Status_ABSENT,
 				revertible(false),
-				emit(func(this *scpb.ColumnFamily) *scop.NotImplementedForPublicObjects {
-					return notImplementedForPublicObjects(this)
+				emit(func(this *scpb.ColumnFamily, md *opGenContext) *scop.AssertColumnFamilyIsRemoved {
+					// Use stricter criteria on 23.1, which will guarantee that the
+					// column family is cleaned up first using the column type element.
+					// The only purpose this operation serves is to make sure that this
+					// when the element reaches absent the column family has actually
+					// been removed. This would have been done via the last column
+					// type element referencing it.
+					if md.ActiveVersion.IsActive(clusterversion.V23_1) {
+						return &scop.AssertColumnFamilyIsRemoved{
+							TableID:  this.TableID,
+							FamilyID: this.FamilyID,
+						}
+					}
+					// We would have used NotImplemented before, but that will be an
+					// assertion now, so just return no-ops.
+					return nil
 				}),
 			),
 		),
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/current/dep_drop_column.go b/pkg/sql/schemachanger/scplan/internal/rules/current/dep_drop_column.go
index 8bf945c81425..2dee6e7c55fd 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/current/dep_drop_column.go
+++ b/pkg/sql/schemachanger/scplan/internal/rules/current/dep_drop_column.go
@@ -48,6 +48,20 @@ func init() {
 			}
 		},
 	)
+
+	registerDepRule(
+		"column type removed before column family",
+		scgraph.Precedence,
+		"column-type", "column-family",
+		func(from, to NodeVars) rel.Clauses {
+			return rel.Clauses{
+				from.Type((*scpb.ColumnType)(nil)),
+				to.Type((*scpb.ColumnFamily)(nil)),
+				JoinOnColumnFamilyID(from, to, "table-id", "family-id"),
+				StatusesToAbsent(from, scpb.Status_ABSENT, to, scpb.Status_ABSENT),
+			}
+		},
+	)
 }
 
 // Special cases of the above.
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/deprules b/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/deprules
index 4c23e43216aa..1e4de40aafa4 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/deprules
+++ b/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/deprules
@@ -1744,6 +1744,19 @@ deprules
     - $column-type-Node[CurrentStatus] = ABSENT
     - joinTargetNode($dependent, $dependent-Target, $dependent-Node)
     - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+- name: column type removed before column family
+  from: column-type-Node
+  kind: Precedence
+  to: column-family-Node
+  query:
+    - $column-type[Type] = '*scpb.ColumnType'
+    - $column-family[Type] = '*scpb.ColumnFamily'
+    - joinOnColumnFamilyID($column-type, $column-family, $table-id, $family-id)
+    - toAbsent($column-type-Target, $column-family-Target)
+    - $column-type-Node[CurrentStatus] = ABSENT
+    - $column-family-Node[CurrentStatus] = ABSENT
+    - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+    - joinTargetNode($column-family, $column-family-Target, $column-family-Node)
 - name: column type removed right before column when not dropping relation
   from: column-type-Node
   kind: SameStagePrecedence
@@ -5092,6 +5105,19 @@ deprules
     - $column-type-Node[CurrentStatus] = ABSENT
     - joinTargetNode($dependent, $dependent-Target, $dependent-Node)
     - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+- name: column type removed before column family
+  from: column-type-Node
+  kind: Precedence
+  to: column-family-Node
+  query:
+    - $column-type[Type] = '*scpb.ColumnType'
+    - $column-family[Type] = '*scpb.ColumnFamily'
+    - joinOnColumnFamilyID($column-type, $column-family, $table-id, $family-id)
+    - toAbsent($column-type-Target, $column-family-Target)
+    - $column-type-Node[CurrentStatus] = ABSENT
+    - $column-family-Node[CurrentStatus] = ABSENT
+    - joinTargetNode($column-type, $column-type-Target, $column-type-Node)
+    - joinTargetNode($column-family, $column-family-Target, $column-family-Node)
 - name: column type removed right before column when not dropping relation
   from: column-type-Node
   kind: SameStagePrecedence
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/oprules b/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/oprules
index 7d714a421ac0..23c3d5227f23 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/oprules
+++ b/pkg/sql/schemachanger/scplan/internal/rules/current/testdata/oprules
@@ -18,6 +18,10 @@ descriptorIsNotBeingDropped-23.1($element):
         - joinTarget($descriptor, $descriptor-Target)
         - joinOnDescID($descriptor, $element, $id)
         - $descriptor-Target[TargetStatus] = ABSENT
+joinOnColumnFamilyID($a, $b, $desc-id, $family-id):
+    - joinOnDescID($a, $b, $desc-id)
+    - $a[ColumnFamilyID] = $family-id
+    - $b[ColumnFamilyID] = $family-id
 joinOnColumnID($a, $b, $desc-id, $col-id):
     - joinOnDescID($a, $b, $desc-id)
     - $a[ColumnID] = $col-id
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/helpers.go b/pkg/sql/schemachanger/scplan/internal/rules/helpers.go
index ef2a9591f259..65959d84dc66 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/helpers.go
+++ b/pkg/sql/schemachanger/scplan/internal/rules/helpers.go
@@ -111,6 +111,11 @@ func JoinOnColumnID(a, b NodeVars, relationIDVar, columnIDVar rel.Var) rel.Claus
 	return joinOnColumnIDUntyped(a.El, b.El, relationIDVar, columnIDVar)
 }
 
+// JoinOnColumnFamilyID joins elements on column ID.
+func JoinOnColumnFamilyID(a, b NodeVars, relationIDVar, columnFamilyIDVar rel.Var) rel.Clause {
+	return joinOnColumnFamilyIDUntyped(a.El, b.El, relationIDVar, columnFamilyIDVar)
+}
+
 // JoinOnIndexID joins elements on index ID.
 func JoinOnIndexID(a, b NodeVars, relationIDVar, indexIDVar rel.Var) rel.Clause {
 	return joinOnIndexIDUntyped(a.El, b.El, relationIDVar, indexIDVar)
@@ -206,6 +211,16 @@ var (
 			}
 		},
 	)
+	joinOnColumnFamilyIDUntyped = screl.Schema.Def4(
+		"joinOnColumnFamilyID", "a", "b", "desc-id", "family-id", func(
+			a, b, descID, familyID rel.Var,
+		) rel.Clauses {
+			return rel.Clauses{
+				JoinOnDescIDUntyped(a, b, descID),
+				familyID.Entities(screl.ColumnFamilyID, a, b),
+			}
+		},
+	)
 	joinOnConstraintIDUntyped = screl.Schema.Def4(
 		"joinOnConstraintID", "a", "b", "desc-id", "constraint-id", func(
 			a, b, descID, constraintID rel.Var,
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/deprules b/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/deprules
index a1cbe0142b2e..0692d61fdb5e 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/deprules
+++ b/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/deprules
@@ -25,6 +25,10 @@ fromHasPublicStatusIfFromIsTableAndToIsRowLevelTTL($fromTarget, $fromEl, $toEl):
         - $n[Type] = '*screl.Node'
         - $n[Target] = $fromTarget
         - nodeHasNoPublicStatus($n)
+joinOnColumnFamilyID($a, $b, $desc-id, $family-id):
+    - joinOnDescID($a, $b, $desc-id)
+    - $a[ColumnFamilyID] = $family-id
+    - $b[ColumnFamilyID] = $family-id
 joinOnColumnID($a, $b, $desc-id, $col-id):
     - joinOnDescID($a, $b, $desc-id)
     - $a[ColumnID] = $col-id
diff --git a/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/oprules b/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/oprules
index 9a2331cd6e52..b07d54c683f5 100644
--- a/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/oprules
+++ b/pkg/sql/schemachanger/scplan/internal/rules/release_22_2/testdata/oprules
@@ -25,6 +25,10 @@ fromHasPublicStatusIfFromIsTableAndToIsRowLevelTTL($fromTarget, $fromEl, $toEl):
         - $n[Type] = '*screl.Node'
         - $n[Target] = $fromTarget
         - nodeHasNoPublicStatus($n)
+joinOnColumnFamilyID($a, $b, $desc-id, $family-id):
+    - joinOnDescID($a, $b, $desc-id)
+    - $a[ColumnFamilyID] = $family-id
+    - $b[ColumnFamilyID] = $family-id
 joinOnColumnID($a, $b, $desc-id, $col-id):
     - joinOnDescID($a, $b, $desc-id)
     - $a[ColumnID] = $col-id
diff --git a/pkg/sql/schemachanger/scplan/testdata/drop_database b/pkg/sql/schemachanger/scplan/testdata/drop_database
index f996f84899a8..431e8e464f49 100644
--- a/pkg/sql/schemachanger/scplan/testdata/drop_database
+++ b/pkg/sql/schemachanger/scplan/testdata/drop_database
@@ -224,9 +224,6 @@ StatementPhase stage 1 of 1 with 169 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 110
       ParentSchemaID: 105
-    *scop.NotImplementedForPublicObjects
-      DescID: 110
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 110
@@ -292,9 +289,6 @@ StatementPhase stage 1 of 1 with 169 MutationType ops
       ParentSchemaID: 106
     *scop.RemoveTableComment
       TableID: 109
-    *scop.NotImplementedForPublicObjects
-      DescID: 109
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 109
@@ -718,6 +712,8 @@ StatementPhase stage 1 of 1 with 169 MutationType ops
         DescriptorID: 110
         Name: t1
         SchemaID: 105
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 110
     *scop.DrainDescriptorName
       Namespace:
         DatabaseID: 104
@@ -730,6 +726,8 @@ StatementPhase stage 1 of 1 with 169 MutationType ops
         DescriptorID: 109
         Name: t1
         SchemaID: 106
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 109
     *scop.DrainDescriptorName
       Namespace:
         DatabaseID: 104
@@ -1196,9 +1194,6 @@ PreCommitPhase stage 2 of 2 with 257 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 110
       ParentSchemaID: 105
-    *scop.NotImplementedForPublicObjects
-      DescID: 110
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 110
@@ -1264,9 +1259,6 @@ PreCommitPhase stage 2 of 2 with 257 MutationType ops
       ParentSchemaID: 106
     *scop.RemoveTableComment
       TableID: 109
-    *scop.NotImplementedForPublicObjects
-      DescID: 109
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 109
@@ -1782,6 +1774,8 @@ PreCommitPhase stage 2 of 2 with 257 MutationType ops
         DescriptorID: 110
         Name: t1
         SchemaID: 105
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 110
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 110
@@ -1806,6 +1800,8 @@ PreCommitPhase stage 2 of 2 with 257 MutationType ops
         DescriptorID: 109
         Name: t1
         SchemaID: 106
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 109
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 109
@@ -2928,6 +2924,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 109, ColumnID: 1}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2936,6 +2936,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 109, ColumnID: 2}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2944,6 +2948,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 109, ColumnID: 3}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2952,6 +2960,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 109, ColumnID: 4294967294}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2960,6 +2972,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 109, ColumnID: 4294967295}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2968,6 +2984,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 110, ColumnID: 1}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
+  to:   [ColumnFamily:{DescID: 110, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
   to:   [Table:{DescID: 110}, ABSENT]
   kind: Precedence
@@ -2976,6 +2996,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 110, ColumnID: 2}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
+  to:   [ColumnFamily:{DescID: 110, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
   to:   [Table:{DescID: 110}, ABSENT]
   kind: Precedence
@@ -2984,6 +3008,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 110, ColumnID: 3}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
+  to:   [ColumnFamily:{DescID: 110, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
   to:   [Table:{DescID: 110}, ABSENT]
   kind: Precedence
@@ -2992,6 +3020,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 110, ColumnID: 4294967294}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
+  to:   [ColumnFamily:{DescID: 110, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
   to:   [Table:{DescID: 110}, ABSENT]
   kind: Precedence
@@ -3000,6 +3032,10 @@ DROP DATABASE db1 CASCADE
   to:   [Column:{DescID: 110, ColumnID: 4294967295}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
+  to:   [ColumnFamily:{DescID: 110, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 110, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
   to:   [Table:{DescID: 110}, ABSENT]
   kind: Precedence
diff --git a/pkg/sql/schemachanger/scplan/testdata/drop_index b/pkg/sql/schemachanger/scplan/testdata/drop_index
index cfb29f080268..4e3cbc3c2003 100644
--- a/pkg/sql/schemachanger/scplan/testdata/drop_index
+++ b/pkg/sql/schemachanger/scplan/testdata/drop_index
@@ -1172,9 +1172,6 @@ StatementPhase stage 1 of 1 with 21 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 107
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 107
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 107
@@ -1234,6 +1231,8 @@ StatementPhase stage 1 of 1 with 21 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 107
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 107
 PreCommitPhase stage 1 of 2 with 1 MutationType op
   transitions:
     [[SecondaryIndex:{DescID: 106, IndexID: 2, ConstraintID: 0}, ABSENT], VALIDATED] -> PUBLIC
@@ -1301,9 +1300,6 @@ PreCommitPhase stage 2 of 2 with 37 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 107
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 107
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 107
@@ -1375,6 +1371,8 @@ PreCommitPhase stage 2 of 2 with 37 MutationType ops
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 4294967294
       TableID: 107
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 107
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 2
       TableID: 107
diff --git a/pkg/sql/schemachanger/scplan/testdata/drop_owned_by b/pkg/sql/schemachanger/scplan/testdata/drop_owned_by
index 710344d683ba..8e387dc60574 100644
--- a/pkg/sql/schemachanger/scplan/testdata/drop_owned_by
+++ b/pkg/sql/schemachanger/scplan/testdata/drop_owned_by
@@ -156,9 +156,6 @@ StatementPhase stage 1 of 1 with 108 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 109
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 109
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 109
@@ -222,9 +219,6 @@ StatementPhase stage 1 of 1 with 108 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 108
       ParentSchemaID: 105
-    *scop.NotImplementedForPublicObjects
-      DescID: 108
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 108
@@ -509,6 +503,10 @@ StatementPhase stage 1 of 1 with 108 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 105
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 109
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 108
 PreCommitPhase stage 1 of 2 with 1 MutationType op
   transitions:
     [[UserPrivileges:{DescID: 100, Name: r}, ABSENT], ABSENT] -> PUBLIC
@@ -779,9 +777,6 @@ PreCommitPhase stage 2 of 2 with 166 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 109
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 109
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 109
@@ -845,9 +840,6 @@ PreCommitPhase stage 2 of 2 with 166 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 108
       ParentSchemaID: 105
-    *scop.NotImplementedForPublicObjects
-      DescID: 108
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 108
@@ -1183,6 +1175,8 @@ PreCommitPhase stage 2 of 2 with 166 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 105
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 109
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 109
@@ -1195,6 +1189,8 @@ PreCommitPhase stage 2 of 2 with 166 MutationType ops
     *scop.MakeWriteOnlyIndexDeleteOnly
       IndexID: 1
       TableID: 109
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 108
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 108
diff --git a/pkg/sql/schemachanger/scplan/testdata/drop_schema b/pkg/sql/schemachanger/scplan/testdata/drop_schema
index 0a252a26c1f7..6df235e179fb 100644
--- a/pkg/sql/schemachanger/scplan/testdata/drop_schema
+++ b/pkg/sql/schemachanger/scplan/testdata/drop_schema
@@ -595,6 +595,10 @@ DROP SCHEMA defaultdb.SC1 CASCADE
   to:   [Column:{DescID: 106, ColumnID: 1}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
+  to:   [ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
   to:   [Table:{DescID: 106}, ABSENT]
   kind: Precedence
@@ -603,6 +607,10 @@ DROP SCHEMA defaultdb.SC1 CASCADE
   to:   [Column:{DescID: 106, ColumnID: 2}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
+  to:   [ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
   to:   [Table:{DescID: 106}, ABSENT]
   kind: Precedence
@@ -611,6 +619,10 @@ DROP SCHEMA defaultdb.SC1 CASCADE
   to:   [Column:{DescID: 106, ColumnID: 3}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
+  to:   [ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
   to:   [Table:{DescID: 106}, ABSENT]
   kind: Precedence
@@ -619,6 +631,10 @@ DROP SCHEMA defaultdb.SC1 CASCADE
   to:   [Column:{DescID: 106, ColumnID: 4294967294}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
+  to:   [ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
   to:   [Table:{DescID: 106}, ABSENT]
   kind: Precedence
@@ -627,6 +643,10 @@ DROP SCHEMA defaultdb.SC1 CASCADE
   to:   [Column:{DescID: 106, ColumnID: 4294967295}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
+  to:   [ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
   to:   [Table:{DescID: 106}, ABSENT]
   kind: Precedence
@@ -1859,9 +1879,6 @@ StatementPhase stage 1 of 1 with 127 MutationType ops
       ParentSchemaID: 104
     *scop.RemoveTableComment
       TableID: 106
-    *scop.NotImplementedForPublicObjects
-      DescID: 106
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 106
@@ -2282,6 +2299,8 @@ StatementPhase stage 1 of 1 with 127 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 104
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 106
 PreCommitPhase stage 1 of 2 with 1 MutationType op
   transitions:
     [[Namespace:{DescID: 104, Name: sc1, ReferencedDescID: 100}, ABSENT], ABSENT] -> PUBLIC
@@ -2595,9 +2614,6 @@ PreCommitPhase stage 2 of 2 with 195 MutationType ops
       ParentSchemaID: 104
     *scop.RemoveTableComment
       TableID: 106
-    *scop.NotImplementedForPublicObjects
-      DescID: 106
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 106
@@ -3093,6 +3109,8 @@ PreCommitPhase stage 2 of 2 with 195 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 104
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 106
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 106
diff --git a/pkg/sql/schemachanger/scplan/testdata/drop_table b/pkg/sql/schemachanger/scplan/testdata/drop_table
index f5fa677d89b5..4997384a4447 100644
--- a/pkg/sql/schemachanger/scplan/testdata/drop_table
+++ b/pkg/sql/schemachanger/scplan/testdata/drop_table
@@ -397,9 +397,6 @@ PreCommitPhase stage 2 of 2 with 127 MutationType ops
       ParentSchemaID: 101
     *scop.RemoveTableComment
       TableID: 109
-    *scop.NotImplementedForPublicObjects
-      DescID: 109
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 109
@@ -567,6 +564,8 @@ PreCommitPhase stage 2 of 2 with 127 MutationType ops
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 4294967294
       TableID: 109
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 109
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 1
       TableID: 109
@@ -1156,6 +1155,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 1}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1164,6 +1167,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 2}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1172,6 +1179,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 4294967294}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1180,6 +1191,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 4294967295}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1188,6 +1203,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 4}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 4}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1196,6 +1215,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 5}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 5}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 5}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1204,6 +1227,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 6}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 6}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ColumnFamilyID: 0, ColumnID: 6}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -1212,6 +1239,10 @@ DROP TABLE defaultdb.shipments CASCADE;
   to:   [Column:{DescID: 109, ColumnID: 3}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 109, ReferencedTypeIDs: [107 108], ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
+  to:   [ColumnFamily:{DescID: 109, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 109, ReferencedTypeIDs: [107 108], ColumnFamilyID: 0, ColumnID: 3}, ABSENT]
   to:   [Table:{DescID: 109}, ABSENT]
   kind: Precedence
@@ -2062,9 +2093,6 @@ PostCommitNonRevertiblePhase stage 1 of 2 with 47 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 104
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 104
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 104
@@ -2121,6 +2149,8 @@ PostCommitNonRevertiblePhase stage 1 of 2 with 47 MutationType ops
     *scop.RemoveUserPrivileges
       DescriptorID: 104
       User: root
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 104
     *scop.RemoveColumnNotNull
       ColumnID: 1
       TableID: 104
@@ -2353,6 +2383,10 @@ DROP TABLE defaultdb.customers CASCADE;
   to:   [Column:{DescID: 104, ColumnID: 1}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
+  to:   [ColumnFamily:{DescID: 104, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 1}, ABSENT]
   to:   [Table:{DescID: 104}, ABSENT]
   kind: Precedence
@@ -2361,6 +2395,10 @@ DROP TABLE defaultdb.customers CASCADE;
   to:   [Column:{DescID: 104, ColumnID: 2}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
+  to:   [ColumnFamily:{DescID: 104, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 2}, ABSENT]
   to:   [Table:{DescID: 104}, ABSENT]
   kind: Precedence
@@ -2369,6 +2407,10 @@ DROP TABLE defaultdb.customers CASCADE;
   to:   [Column:{DescID: 104, ColumnID: 4294967294}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
+  to:   [ColumnFamily:{DescID: 104, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 4294967294}, ABSENT]
   to:   [Table:{DescID: 104}, ABSENT]
   kind: Precedence
@@ -2377,6 +2419,10 @@ DROP TABLE defaultdb.customers CASCADE;
   to:   [Column:{DescID: 104, ColumnID: 4294967295}, ABSENT]
   kind: Precedence
   rule: dependents removed before column
+- from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
+  to:   [ColumnFamily:{DescID: 104, Name: primary, ColumnFamilyID: 0}, ABSENT]
+  kind: Precedence
+  rule: column type removed before column family
 - from: [ColumnType:{DescID: 104, ColumnFamilyID: 0, ColumnID: 4294967295}, ABSENT]
   to:   [Table:{DescID: 104}, ABSENT]
   kind: Precedence
@@ -2766,9 +2812,6 @@ PreCommitPhase stage 2 of 2 with 59 MutationType ops
     *scop.RemoveObjectParent
       ObjectID: 115
       ParentSchemaID: 101
-    *scop.NotImplementedForPublicObjects
-      DescID: 115
-      ElementType: scpb.ColumnFamily
     *scop.MakePublicColumnWriteOnly
       ColumnID: 1
       TableID: 115
@@ -2869,6 +2912,8 @@ PreCommitPhase stage 2 of 2 with 59 MutationType ops
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 4294967294
       TableID: 115
+    *scop.AssertColumnFamilyIsRemoved
+      TableID: 115
     *scop.MakeWriteOnlyColumnDeleteOnly
       ColumnID: 2
       TableID: 115
diff --git a/pkg/sql/schemachanger/testdata/explain/drop_index_with_materialized_view_dep b/pkg/sql/schemachanger/testdata/explain/drop_index_with_materialized_view_dep
index 6bdc68c2839d..c08ddba3ba41 100644
--- a/pkg/sql/schemachanger/testdata/explain/drop_index_with_materialized_view_dep
+++ b/pkg/sql/schemachanger/testdata/explain/drop_index_with_materialized_view_dep
@@ -39,7 +39,6 @@ Schema change plan for DROP INDEX ‹defaultdb›.‹public›.‹v2›@‹idx
  │              ├── MarkDescriptorAsDropped {"DescriptorID":106}
  │              ├── RemoveBackReferencesInRelations {"BackReferencedID":106}
  │              ├── RemoveObjectParent {"ObjectID":106,"ParentSchemaID":101}
- │              ├── NotImplementedForPublicObjects {"DescID":106,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":106}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":106}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":2,"TableID":106}
@@ -56,7 +55,8 @@ Schema change plan for DROP INDEX ‹defaultdb›.‹public›.‹v2›@‹idx
  │              ├── DrainDescriptorName {"Namespace":{"DatabaseID":100,"DescriptorID":106,"Name":"v3","SchemaID":101}}
  │              ├── NotImplementedForPublicObjects {"DescID":106,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":106,"User":"admin"}
- │              └── RemoveUserPrivileges {"DescriptorID":106,"User":"root"}
+ │              ├── RemoveUserPrivileges {"DescriptorID":106,"User":"root"}
+ │              └── AssertColumnFamilyIsRemoved {"TableID":106}
  ├── PreCommitPhase
  │    ├── Stage 1 of 2 in PreCommitPhase
  │    │    ├── 24 elements transitioning toward ABSENT
@@ -118,7 +118,6 @@ Schema change plan for DROP INDEX ‹defaultdb›.‹public›.‹v2›@‹idx
  │              ├── MarkDescriptorAsDropped {"DescriptorID":106}
  │              ├── RemoveBackReferencesInRelations {"BackReferencedID":106}
  │              ├── RemoveObjectParent {"ObjectID":106,"ParentSchemaID":101}
- │              ├── NotImplementedForPublicObjects {"DescID":106,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":106}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":106}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":2,"TableID":106}
@@ -140,6 +139,7 @@ Schema change plan for DROP INDEX ‹defaultdb›.‹public›.‹v2›@‹idx
  │              ├── RemoveColumnNotNull {"ColumnID":2,"TableID":106}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":106}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":106}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":106}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":2,"TableID":106}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967295,"TableID":106}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967294,"TableID":106}
diff --git a/pkg/sql/schemachanger/testdata/explain/drop_table b/pkg/sql/schemachanger/testdata/explain/drop_table
index 719e93d9a2d4..bfdaa0586009 100644
--- a/pkg/sql/schemachanger/testdata/explain/drop_table
+++ b/pkg/sql/schemachanger/testdata/explain/drop_table
@@ -43,7 +43,6 @@ Schema change plan for DROP TABLE ‹db›.‹sc›.‹t›;
  │              ├── MarkDescriptorAsDropped {"DescriptorID":107}
  │              ├── RemoveObjectParent {"ObjectID":107,"ParentSchemaID":106}
  │              ├── RemoveTableComment {"TableID":107}
- │              ├── NotImplementedForPublicObjects {"DescID":107,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":107}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":107}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":2,"TableID":107}
@@ -61,7 +60,8 @@ Schema change plan for DROP TABLE ‹db›.‹sc›.‹t›;
  │              ├── DrainDescriptorName {"Namespace":{"DatabaseID":104,"DescriptorID":107,"Name":"t","SchemaID":106}}
  │              ├── NotImplementedForPublicObjects {"DescID":107,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":107,"User":"admin"}
- │              └── RemoveUserPrivileges {"DescriptorID":107,"User":"root"}
+ │              ├── RemoveUserPrivileges {"DescriptorID":107,"User":"root"}
+ │              └── AssertColumnFamilyIsRemoved {"TableID":107}
  ├── PreCommitPhase
  │    ├── Stage 1 of 2 in PreCommitPhase
  │    │    ├── 27 elements transitioning toward ABSENT
@@ -130,7 +130,6 @@ Schema change plan for DROP TABLE ‹db›.‹sc›.‹t›;
  │              ├── MarkDescriptorAsDropped {"DescriptorID":107}
  │              ├── RemoveObjectParent {"ObjectID":107,"ParentSchemaID":106}
  │              ├── RemoveTableComment {"TableID":107}
- │              ├── NotImplementedForPublicObjects {"DescID":107,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":107}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":107}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":2,"TableID":107}
@@ -154,6 +153,7 @@ Schema change plan for DROP TABLE ‹db›.‹sc›.‹t›;
  │              ├── RemoveColumnNotNull {"ColumnID":3,"TableID":107}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":107}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":107}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":107}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":3,"TableID":107}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967295,"TableID":107}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967294,"TableID":107}
diff --git a/pkg/sql/schemachanger/testdata/explain/drop_table_udf_default b/pkg/sql/schemachanger/testdata/explain/drop_table_udf_default
index 1e4f7ec849b3..0b93e4b9d214 100644
--- a/pkg/sql/schemachanger/testdata/explain/drop_table_udf_default
+++ b/pkg/sql/schemachanger/testdata/explain/drop_table_udf_default
@@ -35,7 +35,6 @@ Schema change plan for DROP TABLE ‹defaultdb›.‹public›.‹t›;
  │         └── 20 Mutation operations
  │              ├── MarkDescriptorAsDropped {"DescriptorID":105}
  │              ├── RemoveObjectParent {"ObjectID":105,"ParentSchemaID":101}
- │              ├── NotImplementedForPublicObjects {"DescID":105,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":105}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":105}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":105}
@@ -52,7 +51,8 @@ Schema change plan for DROP TABLE ‹defaultdb›.‹public›.‹t›;
  │              ├── DrainDescriptorName {"Namespace":{"DatabaseID":100,"DescriptorID":105,"Name":"t","SchemaID":101}}
  │              ├── NotImplementedForPublicObjects {"DescID":105,"ElementType":"scpb.Owner"}
  │              ├── RemoveUserPrivileges {"DescriptorID":105,"User":"admin"}
- │              └── RemoveUserPrivileges {"DescriptorID":105,"User":"root"}
+ │              ├── RemoveUserPrivileges {"DescriptorID":105,"User":"root"}
+ │              └── AssertColumnFamilyIsRemoved {"TableID":105}
  ├── PreCommitPhase
  │    ├── Stage 1 of 2 in PreCommitPhase
  │    │    ├── 23 elements transitioning toward ABSENT
@@ -111,7 +111,6 @@ Schema change plan for DROP TABLE ‹defaultdb›.‹public›.‹t›;
  │         └── 36 Mutation operations
  │              ├── MarkDescriptorAsDropped {"DescriptorID":105}
  │              ├── RemoveObjectParent {"ObjectID":105,"ParentSchemaID":101}
- │              ├── NotImplementedForPublicObjects {"DescID":105,"ElementType":"scpb.ColumnFamil..."}
  │              ├── MakePublicColumnWriteOnly {"ColumnID":1,"TableID":105}
  │              ├── SetColumnName {"ColumnID":1,"Name":"crdb_internal_co...","TableID":105}
  │              ├── MakePublicColumnNotNullValidated {"ColumnID":1,"TableID":105}
@@ -133,6 +132,7 @@ Schema change plan for DROP TABLE ‹defaultdb›.‹public›.‹t›;
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":2,"TableID":105}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967295,"TableID":105}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":4294967294,"TableID":105}
+ │              ├── AssertColumnFamilyIsRemoved {"TableID":105}
  │              ├── MakeWriteOnlyColumnDeleteOnly {"ColumnID":1,"TableID":105}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967295,"TableID":105}
  │              ├── MakeDeleteOnlyColumnAbsent {"ColumnID":4294967294,"TableID":105}
diff --git a/pkg/sql/schemachanger/testdata/explain_verbose/drop_index_with_materialized_view_dep b/pkg/sql/schemachanger/testdata/explain_verbose/drop_index_with_materialized_view_dep
index cba348e7102d..39147d2f38cd 100644
--- a/pkg/sql/schemachanger/testdata/explain_verbose/drop_index_with_materialized_view_dep
+++ b/pkg/sql/schemachanger/testdata/explain_verbose/drop_index_with_materialized_view_dep
@@ -61,8 +61,20 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │       │   ├── • ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED View:{DescID: 106}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED View:{DescID: 106}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 106, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -204,10 +216,6 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │           │     ObjectID: 106
 │           │     ParentSchemaID: 101
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 106
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 106
@@ -280,9 +288,12 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │           │     DescriptorID: 106
 │           │     User: admin
 │           │
-│           └── • RemoveUserPrivileges
-│                 DescriptorID: 106
-│                 User: root
+│           ├── • RemoveUserPrivileges
+│           │     DescriptorID: 106
+│           │     User: root
+│           │
+│           └── • AssertColumnFamilyIsRemoved
+│                 TableID: 106
 │
 ├── • PreCommitPhase
 │   │
@@ -417,8 +428,20 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │       │   ├── • ColumnFamily:{DescID: 106, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED View:{DescID: 106}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED View:{DescID: 106}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 106, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 106, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -635,10 +658,6 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │           │     ObjectID: 106
 │           │     ParentSchemaID: 101
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 106
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 106
@@ -731,6 +750,9 @@ EXPLAIN (ddl, verbose) DROP INDEX idx CASCADE;
 │           │     ColumnID: 4294967294
 │           │     TableID: 106
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 106
+│           │
 │           ├── • MakeWriteOnlyColumnDeleteOnly
 │           │     ColumnID: 2
 │           │     TableID: 106
diff --git a/pkg/sql/schemachanger/testdata/explain_verbose/drop_table b/pkg/sql/schemachanger/testdata/explain_verbose/drop_table
index 041573ed0e5b..698f94693f64 100644
--- a/pkg/sql/schemachanger/testdata/explain_verbose/drop_table
+++ b/pkg/sql/schemachanger/testdata/explain_verbose/drop_table
@@ -59,8 +59,23 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │       │   ├── • ColumnFamily:{DescID: 107, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 107}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 107}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 3}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 107, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -227,10 +242,6 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │           ├── • RemoveTableComment
 │           │     TableID: 107
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 107
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 107
@@ -308,9 +319,12 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │           │     DescriptorID: 107
 │           │     User: admin
 │           │
-│           └── • RemoveUserPrivileges
-│                 DescriptorID: 107
-│                 User: root
+│           ├── • RemoveUserPrivileges
+│           │     DescriptorID: 107
+│           │     User: root
+│           │
+│           └── • AssertColumnFamilyIsRemoved
+│                 TableID: 107
 │
 ├── • PreCommitPhase
 │   │
@@ -451,8 +465,23 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │       │   ├── • ColumnFamily:{DescID: 107, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 107}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 107}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 3}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 107, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 107, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -718,10 +747,6 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │           ├── • RemoveTableComment
 │           │     TableID: 107
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 107
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 107
@@ -823,6 +848,9 @@ EXPLAIN (ddl, verbose) DROP TABLE db.sc.t;
 │           │     ColumnID: 4294967294
 │           │     TableID: 107
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 107
+│           │
 │           ├── • MakeWriteOnlyColumnDeleteOnly
 │           │     ColumnID: 3
 │           │     TableID: 107
diff --git a/pkg/sql/schemachanger/testdata/explain_verbose/drop_table_udf_default b/pkg/sql/schemachanger/testdata/explain_verbose/drop_table_udf_default
index e6393e7d020a..6ceabc30efca 100644
--- a/pkg/sql/schemachanger/testdata/explain_verbose/drop_table_udf_default
+++ b/pkg/sql/schemachanger/testdata/explain_verbose/drop_table_udf_default
@@ -50,8 +50,20 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │       │   ├── • ColumnFamily:{DescID: 105, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 105}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 105}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 105, ColumnID: 1}
 │       │   │   │ PUBLIC → WRITE_ONLY
@@ -191,10 +203,6 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │           │     ObjectID: 105
 │           │     ParentSchemaID: 101
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 105
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 105
@@ -269,9 +277,12 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │           │     DescriptorID: 105
 │           │     User: admin
 │           │
-│           └── • RemoveUserPrivileges
-│                 DescriptorID: 105
-│                 User: root
+│           ├── • RemoveUserPrivileges
+│           │     DescriptorID: 105
+│           │     User: root
+│           │
+│           └── • AssertColumnFamilyIsRemoved
+│                 TableID: 105
 │
 ├── • PreCommitPhase
 │   │
@@ -394,8 +405,20 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │       │   ├── • ColumnFamily:{DescID: 105, Name: primary, ColumnFamilyID: 0}
 │       │   │   │ PUBLIC → ABSENT
 │       │   │   │
-│       │   │   └── • Precedence dependency from DROPPED Table:{DescID: 105}
-│       │   │         rule: "descriptor dropped before dependent element removal"
+│       │   │   ├── • Precedence dependency from DROPPED Table:{DescID: 105}
+│       │   │   │     rule: "descriptor dropped before dependent element removal"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 1}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 2}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   ├── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 4294967295}
+│       │   │   │     rule: "column type removed before column family"
+│       │   │   │
+│       │   │   └── • Precedence dependency from ABSENT ColumnType:{DescID: 105, ColumnFamilyID: 0, ColumnID: 4294967294}
+│       │   │         rule: "column type removed before column family"
 │       │   │
 │       │   ├── • Column:{DescID: 105, ColumnID: 1}
 │       │   │   │ PUBLIC → ABSENT
@@ -610,10 +633,6 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │           │     ObjectID: 105
 │           │     ParentSchemaID: 101
 │           │
-│           ├── • NotImplementedForPublicObjects
-│           │     DescID: 105
-│           │     ElementType: scpb.ColumnFamily
-│           │
 │           ├── • MakePublicColumnWriteOnly
 │           │     ColumnID: 1
 │           │     TableID: 105
@@ -708,6 +727,9 @@ EXPLAIN (ddl, verbose) DROP TABLE t;
 │           │     ColumnID: 4294967294
 │           │     TableID: 105
 │           │
+│           ├── • AssertColumnFamilyIsRemoved
+│           │     TableID: 105
+│           │
 │           ├── • MakeWriteOnlyColumnDeleteOnly
 │           │     ColumnID: 1
 │           │     TableID: 105