private SqlExpression ApplyTypeMappingOnMySqlBinary(
MySQLBinaryExpression sqlBinaryExpression,
RelationalTypeMapping typeMapping)
{
var left = sqlBinaryExpression.Left;
var right = sqlBinaryExpression.Right;
Type resultType;
RelationalTypeMapping resultTypeMapping;
RelationalTypeMapping inferredTypeMapping;
switch (sqlBinaryExpression.OperatorType)
{
case MySQLBinaryExpressionOperatorType.IntegerDivision:
{
inferredTypeMapping = typeMapping ?? ExpressionExtensions.InferTypeMapping(left, right);
resultType = left.Type;
resultTypeMapping = inferredTypeMapping;
}
break;
default:
throw new InvalidOperationException("Incorrect OperatorType for MySQLBinaryExpression");
}
return(new MySQLBinaryExpression(
sqlBinaryExpression.OperatorType,
ApplyTypeMapping(left, inferredTypeMapping),
ApplyTypeMapping(right, inferredTypeMapping),
resultType,
resultTypeMapping));
}
public Expression VisitMySQLBinaryExpression(MySQLBinaryExpression mySqlBinaryExpression)
{
Sql.Append("(");
Visit(mySqlBinaryExpression.Left);
Sql.Append(")");
switch (mySqlBinaryExpression.OperatorType)
{
case MySQLBinaryExpressionOperatorType.IntegerDivision:
Sql.Append(" DIV ");
break;
default:
throw new ArgumentOutOfRangeException();
}
Sql.Append("(");
Visit(mySqlBinaryExpression.Right);
Sql.Append(")");
return(mySqlBinaryExpression);
}
