# `Selecto.Advanced.CaseExpression.ValidationError`

Error raised when CASE expression specification is invalid.

# `t`

```elixir
@type t() :: %Selecto.Advanced.CaseExpression.ValidationError{
  __exception__: term(),
  details: map(),
  message: String.t(),
  type: :invalid_structure | :invalid_when_clauses | :missing_column
}
```

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