The following liquibase changeset does not work as expected

```xml
        <createTable tableName="test">
            <column name="id" type="SERIAL">
                <constraints nullable="false" primaryKey="true"/>
            </column>
        </createTable>
```

This changeset results in sql

```sql
CREATE TABLE test (id INTEGER NOT NULL, CONSTRAINT TEST_PKEY PRIMARY KEY (id));
```

In liquibase 3.6.3 and earlier the type `SERIAL` was used for the column which means that a sequence is automatically included.

This issue seems to be caused by #874
It appears that SERIAL columns are replaced by INT, however liquibase does reconize that this column type is an auto increment column.

It would be acceptible if the generated sql would be

```sql
CREATE TABLE test (id INTEGER GENERATED BY DEFAULT AS IDENTITY NOT NULL, CONSTRAINT TEST_PKEY PRIMARY KEY (id));
```


}
        for (ColumnConfig column : getColumns()) {
            String columnRemarks = StringUtils.trimToNull(column.getRemarks());
            if (columnRemarks != null) {
                SetColumnRemarksStatement remarksStatement = new SetColumnRemarksStatement(catalogName, schemaName, tableName, column.getName(), columnRemarks);
                if (!(database instanceof MySQLDatabase) && SqlGeneratorFactory.getInstance().supports(remarksStatement, database)) {
                    statements.add(remarksStatement);
                }
            }
        }
        return statements.toArray(new SqlStatement[statements.size()]);
    }
    protected CreateTableStatement generateCreateTableStatement() {
        return new CreateTableStatement(getCatalogName(), getSchemaName(), getTableName(), getRemarks());
    }
    @Override
    protected Change[] createInverses() {
        DropTableChange inverse = new DropTableChange();
        inverse.setCatalogName(getCatalogName());
        inverse.setSchemaName(getSchemaName());
        inverse.setTableName(getTableName());
        return new Change[]{
                inverse
        };
    }
    @Override
    public ChangeStatus checkStatus(Database database) {
        try {
            Table example = (Table) new Table().setName(getTableName()).setSchema(getCatalogName(), getSchemaName());
            ChangeStatus status = new ChangeStatus();