Refactoring to support parameterized queries.

sqlbuilder/func.go

@@ -1,51 +0,0 @@
-package sqlbuilder
-
-import "bytes"
-
-type FuncExpression interface {
-	Expression
-}
-
-type numericFunc struct {
-	expressionInterfaceImpl
-	numericInterfaceImpl
-
-	name       string
-	expression Expression
-}
-
-func NewNumericFunc(name string, expression Expression) NumericExpression {
-	numericFunc := &numericFunc{
-		name:       name,
-		expression: expression,
-	}
-
-	numericFunc.expressionInterfaceImpl.parent = numericFunc
-	numericFunc.numericInterfaceImpl.parent = numericFunc
-
-	return numericFunc
-}
-
-func (f *numericFunc) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
-	out.WriteString(f.name)
-	out.WriteString("(")
-	err := f.expression.SerializeSql(out)
-	if err != nil {
-		return err
-	}
-	out.WriteString(")")
-
-	return nil
-}
-
-//func (f *FuncExpression) SerializeSqlForColumnList(out *bytes.Buffer) error {
-//	return f.SerializeSql(out)
-//}
-
-func MAX(expression NumericExpression) NumericExpression {
-	return NewNumericFunc("MAX", expression)
-}
-
-func SUM(expression NumericExpression) NumericExpression {
-	return NewNumericFunc("SUM", expression)
-}