public SqlType getExpressionSqlType(final Expression expression) {
    return getExpressionSqlType(expression, Collections.emptyMap());
  }
@Test
  public void shouldReturnBooleanForInPredicate() {
    // Given:
    final Expression expression = new InPredicate(
        TestExpressions.COL0,
        new InListExpression(ImmutableList.of(new IntegerLiteral(1), new IntegerLiteral(2)))
    );

    // When:
    final SqlType result = expressionTypeManager.getExpressionSqlType(expression);

    // Then:
    assertThat(result, is(SqlTypes.BOOLEAN));
  }