# `Selecto.SetOperations.Validation.SchemaError`

# `t`

```elixir
@type t() :: %Selecto.SetOperations.Validation.SchemaError{
  __exception__: term(),
  message: String.t(),
  query1_info: map(),
  query2_info: map(),
  type: :column_count_mismatch | :type_incompatibility | :mapping_error
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*