diff --git a/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Unit/SchemaConverterTest.php b/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Unit/SchemaConverterTest.php
index 895f8e3de..7d98730cc 100644
--- a/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Unit/SchemaConverterTest.php
+++ b/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Unit/SchemaConverterTest.php
@@ -91,8 +91,68 @@ public function test_converting_flow_to_dbal_schema_without_providing_pk_name()
         );
     }
 
-    public function test_dbal_schema_to_flow_schema() : void
+    public function test_dbal_schema_to_flow_schema_dbal_36() : void
     {
+        // changeColumn was removed in doctrine/dbal 4.0
+        // We are using it to perform a different assertion since prior to 4.0 all
+        // columns were also getting precision set to 10 due to a bug that was executing precision set
+        // even when precision value was null.
+        if (!\method_exists(Table::class, 'changeColumn')) {
+            self::markTestSkipped('Doctrine DBAL >= 3.6+ < 4.0');
+        }
+
+        self::assertEquals(
+            schema(
+                int_schema('int', nullable: false, metadata: DbalMetadata::primaryKey('pk_test')->merge(DbalMetadata::precision(10))),
+                str_schema('str', nullable: false, metadata: DbalMetadata::primaryKey('pk_test')->merge(DbalMetadata::precision(10))),
+                int_schema('bigint', nullable: false, metadata: DbalMetadata::precision(10)),
+                str_schema('str_with_length', true, DbalMetadata::length(255)->merge(DbalMetadata::precision(10))),
+                str_schema('str_unique', true, DbalMetadata::indexUnique('idx_str_unique')->merge(DbalMetadata::precision(10))),
+                date_schema('date', nullable: true, metadata: DbalMetadata::index('idx_date')->merge(DbalMetadata::precision(10))),
+                float_schema('float', nullable: true, metadata: DbalMetadata::precision(10)->merge(DbalMetadata::scale(2))->merge(DbalMetadata::precision(10))),
+                float_schema('float_default', metadata: DbalMetadata::scale(6)->merge(DbalMetadata::precision(10))),
+                bool_schema('bool', nullable: true, metadata: DbalMetadata::default(true)->merge(DbalMetadata::precision(10))),
+                json_schema('json', nullable: true, metadata: DbalMetadata::platformOptions(['jsonb' => true])->merge(DbalMetadata::precision(10))),
+                json_schema('list', metadata: DbalMetadata::columnDefinition('integer[]')->merge(DbalMetadata::precision(10))),
+                json_schema('map', metadata: DbalMetadata::comment('test comment!')->merge(DbalMetadata::precision(10))),
+            ),
+            table_schema_to_flow_schema(
+                new Table(
+                    'test',
+                    [
+                        new Column('int', Type::getType('integer'), ['notnull' => true]),
+                        new Column('str', Type::getType('string'), ['notnull' => true]), // pk changes nullable true into false
+                        new Column('bigint', Type::getType('bigint'), ['notnull' => true]),
+                        new Column('str_with_length', Type::getType('string'), ['notnull' => false, 'length' => 255]),
+                        new Column('str_unique', Type::getType('string'), ['notnull' => false]),
+                        new Column('float', Type::getType('float'), ['notnull' => false, 'precision' => 10, 'scale' => 2]),
+                        new Column('float_default', Type::getType('float'), ['notnull' => true, 'scale' => 6]),
+                        new Column('bool', Type::getType('boolean'), ['notnull' => false, 'default' => true]),
+                        new Column('json', Type::getType('json'), ['notnull' => false, 'platformOptions' => ['jsonb' => true]]),
+                        new Column('list', Type::getType('json'), ['notnull' => true, 'columnDefinition' => 'integer[]']),
+                        new Column('map', Type::getType('json'), ['notnull' => true, 'comment' => 'test comment!']),
+                        new Column('date', Type::getType('date_immutable'), ['notnull' => false]),
+                    ],
+                    [
+                        new Index('pk_test', ['int', 'str'], true, true),
+                        new Index('idx_date', ['date'], false, false),
+                        new Index('idx_str_unique', ['str_unique'], true, false),
+                    ]
+                )
+            )
+        );
+    }
+
+    public function test_dbal_schema_to_flow_schema_dbal_40() : void
+    {
+        // changeColumn was removed in doctrine/dbal 4.0
+        // We are using it to perform a different assertion since prior to 4.0 all
+        // columns were also getting precision set to 10 due to a bug that was executing precision set
+        // even when precision value was null.
+        if (\method_exists(Table::class, 'changeColumn')) {
+            self::markTestSkipped('Doctrine DBAL >= 4.0+');
+        }
+
         self::assertEquals(
             schema(
                 int_schema('int', nullable: false, metadata: DbalMetadata::primaryKey('pk_test')),