Column types refactoring.

sqlbuilder/alias.go

@@ -20,9 +20,9 @@ func NewAlias(expression Expression, alias string) *Alias {
 	}
 }
 
-func (a *Alias) SerializeSql(out *bytes.Buffer) error {
+func (a *Alias) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 
-	err := a.expression.SerializeSql(out)
+	err := a.expression.SerializeSql(out, ALIASED)
 
 	if err != nil {
 		return err

sqlbuilder/bool_expresion.go

@@ -11,6 +11,11 @@ import (
 type BoolExpression interface {
 	Expression
 
+	Eq(expression BoolExpression) BoolExpression
+	NotEq(expression BoolExpression) BoolExpression
+	GtEq(rhs Expression) BoolExpression
+	LtEq(rhs Expression) BoolExpression
+
 	And(expression BoolExpression) BoolExpression
 	Or(expression BoolExpression) BoolExpression
 	IsTrue() BoolExpression
@@ -21,6 +26,22 @@ type boolInterfaceImpl struct {
 	parent BoolExpression
 }
 
+func (b *boolInterfaceImpl) Eq(expression BoolExpression) BoolExpression {
+	return Eq(b.parent, expression)
+}
+
+func (b *boolInterfaceImpl) NotEq(expression BoolExpression) BoolExpression {
+	return Neq(b.parent, expression)
+}
+
+func (b *boolInterfaceImpl) GtEq(rhs Expression) BoolExpression {
+	return Gte(b.parent, rhs)
+}
+
+func (b *boolInterfaceImpl) LtEq(rhs Expression) BoolExpression {
+	return Lte(b.parent, rhs)
+}
+
 func (b *boolInterfaceImpl) And(expression BoolExpression) BoolExpression {
 	return And(b.parent, expression)
 }
@@ -42,7 +63,7 @@ type boolLiteralExpression struct {
 	literalExpression
 }
 
-func NewBoolLiteralExpression(value bool) BoolExpression {
+func newBoolLiteralExpression(value bool) BoolExpression {
 	boolLiteralExpression := boolLiteralExpression{}
 
 	sqlValue, err := sqltypes.BuildValue(value)
@@ -57,15 +78,17 @@ func NewBoolLiteralExpression(value bool) BoolExpression {
 
 //---------------------------------------------------//
 type binaryBoolExpression struct {
+	expressionInterfaceImpl
 	boolInterfaceImpl
 
 	binaryExpression
 }
 
-func NewBinaryBoolExpression(lhs, rhs Expression, operator []byte) BoolExpression {
+func newBinaryBoolExpression(lhs, rhs Expression, operator []byte) BoolExpression {
 	boolExpression := binaryBoolExpression{}
 
-	boolExpression.binaryExpression = *NewBinaryExpression(lhs, rhs, operator, &boolExpression)
+	boolExpression.binaryExpression = newBinaryExpression(lhs, rhs, operator)
+	boolExpression.expressionInterfaceImpl.parent = &boolExpression
 	boolExpression.boolInterfaceImpl.parent = &boolExpression
 
 	return &boolExpression
@@ -73,15 +96,17 @@ func NewBinaryBoolExpression(lhs, rhs Expression, operator []byte) BoolExpressio
 
 //---------------------------------------------------//
 type prefixBoolExpression struct {
+	expressionInterfaceImpl
 	boolInterfaceImpl
 
 	prefixExpression
 }
 
-func NewPrefixBoolExpression(expression Expression, operator []byte) BoolExpression {
+func newPrefixBoolExpression(expression Expression, operator []byte) BoolExpression {
 	boolExpression := prefixBoolExpression{}
-	boolExpression.prefixExpression = *NewPrefixExpression(expression, operator, &boolExpression)
+	boolExpression.prefixExpression = newPrefixExpression(expression, operator)
 
+	boolExpression.expressionInterfaceImpl.parent = &boolExpression
 	boolExpression.boolInterfaceImpl.parent = &boolExpression
 
 	return &boolExpression
@@ -89,6 +114,7 @@ func NewPrefixBoolExpression(expression Expression, operator []byte) BoolExpress
 
 //---------------------------------------------------//
 type conjunctBoolExpression struct {
+	expressionInterfaceImpl
 	boolInterfaceImpl
 
 	conjunctExpression
@@ -103,8 +129,8 @@ func NewConjunctBoolExpression(operator []byte, expressions ...BoolExpression) B
 		},
 	}
 
-	//boolExpression.expressionInterfaceImpl.parent = &boolExpression
+	boolExpression.expressionInterfaceImpl.parent = &boolExpression
-	//boolExpression.boolInterfaceImpl.parent = &boolExpression
+	boolExpression.boolInterfaceImpl.parent = &boolExpression
 
 	return &boolExpression
 }
@@ -120,7 +146,7 @@ type inExpression struct {
 	err error
 }
 
-func (c *inExpression) SerializeSql(out *bytes.Buffer) error {
+func (c *inExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	if c.err != nil {
 		return errors.Wrap(c.err, "Invalid IN expression")
 	}
@@ -159,9 +185,9 @@ func (c *inExpression) SerializeSql(out *bytes.Buffer) error {
 func Eq(lhs, rhs Expression) BoolExpression {
 	lit, ok := rhs.(*literalExpression)
 	if ok && sqltypes.Value(lit.value).IsNull() {
-		return NewBinaryBoolExpression(lhs, rhs, []byte(" IS "))
+		return newBinaryBoolExpression(lhs, rhs, []byte(" IS "))
 	}
-	return NewBinaryBoolExpression(lhs, rhs, []byte(" = "))
+	return newBinaryBoolExpression(lhs, rhs, []byte(" = "))
 }
 
 // Returns a representation of "a=b", where b is a literal
@@ -173,9 +199,9 @@ func EqL(lhs Expression, val interface{}) BoolExpression {
 func Neq(lhs, rhs Expression) BoolExpression {
 	lit, ok := rhs.(*literalExpression)
 	if ok && sqltypes.Value(lit.value).IsNull() {
-		return NewBinaryBoolExpression(lhs, rhs, []byte(" IS NOT "))
+		return newBinaryBoolExpression(lhs, rhs, []byte(" IS NOT "))
 	}
-	return NewBinaryBoolExpression(lhs, rhs, []byte("!="))
+	return newBinaryBoolExpression(lhs, rhs, []byte("!="))
 }
 
 // Returns a representation of "a!=b", where b is a literal
@@ -185,7 +211,7 @@ func NeqL(lhs Expression, val interface{}) BoolExpression {
 
 // Returns a representation of "a<b"
 func Lt(lhs Expression, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte("<"))
+	return newBinaryBoolExpression(lhs, rhs, []byte("<"))
 }
 
 // Returns a representation of "a<b", where b is a literal
@@ -195,7 +221,7 @@ func LtL(lhs Expression, val interface{}) BoolExpression {
 
 // Returns a representation of "a<=b"
 func Lte(lhs, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte("<="))
+	return newBinaryBoolExpression(lhs, rhs, []byte("<="))
 }
 
 // Returns a representation of "a<=b", where b is a literal
@@ -205,7 +231,7 @@ func LteL(lhs Expression, val interface{}) BoolExpression {
 
 // Returns a representation of "a>b"
 func Gt(lhs, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte(">"))
+	return newBinaryBoolExpression(lhs, rhs, []byte(">"))
 }
 
 // Returns a representation of "a>b", where b is a literal
@@ -215,7 +241,7 @@ func GtL(lhs Expression, val interface{}) BoolExpression {
 
 // Returns a representation of "a>=b"
 func Gte(lhs, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte(">="))
+	return newBinaryBoolExpression(lhs, rhs, []byte(">="))
 }
 
 // Returns a representation of "a>=b", where b is a literal
@@ -225,11 +251,11 @@ func GteL(lhs Expression, val interface{}) BoolExpression {
 
 // Returns a representation of "not expr"
 func Not(expr BoolExpression) BoolExpression {
-	return NewPrefixBoolExpression(expr, []byte(" NOT "))
+	return newPrefixBoolExpression(expr, []byte(" NOT "))
 }
 
 func IsTrue(expr BoolExpression) BoolExpression {
-	return NewPrefixBoolExpression(expr, []byte(" IS TRUE "))
+	return newPrefixBoolExpression(expr, []byte(" IS TRUE "))
 }
 
 // Returns a representation of "c[0] AND ... AND c[n-1]" for c in clauses
@@ -243,7 +269,7 @@ func Or(expressions ...BoolExpression) BoolExpression {
 }
 
 func Like(lhs, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte(" LIKE "))
+	return newBinaryBoolExpression(lhs, rhs, []byte(" LIKE "))
 }
 
 func LikeL(lhs Expression, val string) BoolExpression {
@@ -251,7 +277,7 @@ func LikeL(lhs Expression, val string) BoolExpression {
 }
 
 func Regexp(lhs, rhs Expression) BoolExpression {
-	return NewBinaryBoolExpression(lhs, rhs, []byte(" REGEXP "))
+	return newBinaryBoolExpression(lhs, rhs, []byte(" REGEXP "))
 }
 
 func RegexpL(lhs Expression, val string) BoolExpression {

sqlbuilder/bool_expression_test.go

@@ -97,7 +97,7 @@ func TestUnaryIsTrueExpression(t *testing.T) {
 }
 
 func TestBoolLiteral(t *testing.T) {
-	literal := NewBoolLiteralExpression(true)
+	literal := newBoolLiteralExpression(true)
 
 	out := bytes.Buffer{}
 	err := literal.SerializeSql(&out)

sqlbuilder/clause.go

@@ -2,6 +2,22 @@ package sqlbuilder
 
 import "bytes"
 
+type serializeOption int
+
+const (
+	ALIASED = iota
+	FOR_PROJECTION
+)
+
 type Clause interface {
-	SerializeSql(out *bytes.Buffer) error
+	SerializeSql(out *bytes.Buffer, options ...serializeOption) error
+}
+
+func contains(s []serializeOption, e serializeOption) bool {
+	for _, a := range s {
+		if a == e {
+			return true
+		}
+	}
+	return false
 }

sqlbuilder/column.go

@@ -6,8 +6,6 @@ import (
 	"bytes"
 	"regexp"
 	"strings"
-
-	"github.com/dropbox/godropbox/errors"
 )
 
 // XXX: Maybe add UIntColumn
@@ -15,31 +13,29 @@ import (
 // Representation of a tableName for query generation
 type Column interface {
 	Expression
-	isProjectionInterface
 
 	Name() string
-
 	TableName() string
-	// Serialization for use in column lists
-	SerializeSqlForColumnList(out *bytes.Buffer) error
-
 	// Internal function for tracking tableName that a column belongs to
 	// for the purpose of serialization
 	setTableName(table string) error
 
-	Eq(rhs Expression) BoolExpression
-	Neq(rhs Expression) BoolExpression
-
-	Gte(rhs Expression) BoolExpression
-	GteLiteral(rhs interface{}) BoolExpression
-
-	Lte(rhs Expression) BoolExpression
-	LteLiteral(rhs interface{}) BoolExpression
-
 	Asc() OrderByClause
 	Desc() OrderByClause
 }
 
+type columnInterfaceImpl struct {
+	parent Column
+}
+
+func (c *columnInterfaceImpl) Asc() OrderByClause {
+	return &orderByClause{expression: c.parent, ascent: true}
+}
+
+func (c *columnInterfaceImpl) Desc() OrderByClause {
+	return &orderByClause{expression: c.parent, ascent: false}
+}
+
 type NullableColumn bool
 
 const (
@@ -47,10 +43,10 @@ const (
 	NotNullable NullableColumn = false
 )
 
-// A column that can be refer to outside of the projection list
+//// A column that can be refer to outside of the projection list
-type NonAliasColumn interface {
+//type NonAliasColumn interface {
-	Column
+//	Column
-}
+//}
 
 type Collation string
 
@@ -70,19 +66,25 @@ const (
 // The base type for real materialized columns.
 type baseColumn struct {
 	expressionInterfaceImpl
-	isProjection
+	columnInterfaceImpl
+
 	name      string
 	nullable  NullableColumn
 	tableName string
-	alias     string
 }
 
-//func (c *baseColumn) As(alias string) Projection {
+func newBaseColumn(name string, nullable NullableColumn, tableName string, parent Column) baseColumn {
-//	newBaseColumn := *c
+	bc := baseColumn{
-//	newBaseColumn.alias = alias
+		name:      name,
-//
+		nullable:  nullable,
-//	return &newBaseColumn
+		tableName: tableName,
-//}
+	}
+
+	bc.expressionInterfaceImpl.parent = parent
+	bc.columnInterfaceImpl.parent = parent
+
+	return bc
+}
 
 func (c *baseColumn) Name() string {
 	return c.name
@@ -97,20 +99,7 @@ func (c *baseColumn) setTableName(table string) error {
 	return nil
 }
 
-func (c *baseColumn) SerializeSqlForColumnList(out *bytes.Buffer) error {
+func (c baseColumn) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
-
-	c.SerializeSql(out)
-
-	if c.alias != "" {
-		_, _ = out.WriteString(" AS \"" + c.alias + "\"")
-	} else if c.tableName != "" {
-		_, _ = out.WriteString(" AS \"" + c.tableName + "." + c.name + "\"")
-	}
-
-	return nil
-}
-
-func (c baseColumn) SerializeSql(out *bytes.Buffer) error {
 	if c.tableName != "" {
 		_, _ = out.WriteString(c.tableName)
 		_, _ = out.WriteString(".")
@@ -125,190 +114,163 @@ func (c baseColumn) SerializeSql(out *bytes.Buffer) error {
 		out.WriteString("\"")
 	}
 
+	if contains(options, FOR_PROJECTION) && !contains(options, ALIASED) && c.tableName != "" {
+		_, _ = out.WriteString(" AS \"" + c.tableName + "." + c.name + "\"")
+	}
+
 	return nil
 }
 
-func (c *baseColumn) Eq(rhs Expression) BoolExpression {
+//
-	return Eq(c, rhs)
+//type bytesColumn struct {
-}
+//	baseColumn
+//}
+//
+//// Representation of VARBINARY/BLOB columns
+//// This function will panic if name is not valid
+//func BytesColumn(name string, nullable NullableColumn) Column {
+//	if !validIdentifierName(name) {
+//		panic("Invalid column name in bytes column")
+//	}
+//	bc := &bytesColumn{}
+//	bc.name = name
+//	bc.nullable = nullable
+//	return bc
+//}
+//
+//type stringColumn struct {
+//	baseColumn
+//	charset   Charset
+//	collation Collation
+//}
+//
+//// Representation of VARCHAR/TEXT columns
+//// This function will panic if name is not valid
+//func StrColumn(
+//	name string,
+//	charset Charset,
+//	collation Collation,
+//	nullable NullableColumn) Column {
+//
+//	if !validIdentifierName(name) {
+//		panic("Invalid column name in str column")
+//	}
+//	sc := &stringColumn{charset: charset, collation: collation}
+//	sc.name = name
+//	sc.nullable = nullable
+//	return sc
+//}
+//
+//type dateTimeColumn struct {
+//	baseColumn
+//}
+//
+//// Representation of DateTime columns
+//// This function will panic if name is not valid
+//func DateTimeColumn(name string, nullable NullableColumn) Column {
+//	if !validIdentifierName(name) {
+//		panic("Invalid column name in datetime column")
+//	}
+//	dc := &dateTimeColumn{}
+//	dc.name = name
+//	dc.nullable = nullable
+//	return dc
+//}
 
-func (c *baseColumn) Neq(rhs Expression) BoolExpression {
+//type IntegerColumn struct {
-	return Neq(c, rhs)
+//	baseColumn
-}
+//}
+//
+//// Representation of any integer column
+//// This function will panic if name is not valid
+//func IntColumn(name string, nullable NullableColumn) *IntegerColumn {
+//	if !validIdentifierName(name) {
+//		panic("Invalid column name in int column")
+//	}
+//	ic := &IntegerColumn{}
+//	ic.name = name
+//	ic.nullable = nullable
+//	return ic
+//}
 
-func (c *baseColumn) Gte(rhs Expression) BoolExpression {
+//type doubleColumn struct {
-	return Gte(c, rhs)
+//	baseColumn
-}
+//}
-
+//
-func (c *baseColumn) GteLiteral(rhs interface{}) BoolExpression {
+//// Representation of any double column
-	return Gte(c, Literal(rhs))
+//// This function will panic if name is not valid
-}
+//func DoubleColumn(name string, nullable NullableColumn) Column {
-
+//	if !validIdentifierName(name) {
-func (c *baseColumn) Lte(rhs Expression) BoolExpression {
+//		panic("Invalid column name in int column")
-	return Lte(c, rhs)
+//	}
-}
+//	ic := &doubleColumn{}
-
+//	ic.name = name
-func (c *baseColumn) LteLiteral(literal interface{}) BoolExpression {
+//	ic.nullable = nullable
-	return Lte(c, Literal(literal))
+//	return ic
-}
+//}
-
+//
-func (c *baseColumn) Asc() OrderByClause {
+//type booleanColumn struct {
-	return Asc(c)
+//	baseColumn
-}
+//
-
+//	// XXX: Maybe allow isBoolExpression (for now, not included because
-func (c *baseColumn) Desc() OrderByClause {
+//	// the deferred lookup equivalent can never be isBoolExpression)
-	return Desc(c)
+//}
-}
-
-type bytesColumn struct {
-	baseColumn
-}
-
-// Representation of VARBINARY/BLOB columns
-// This function will panic if name is not valid
-func BytesColumn(name string, nullable NullableColumn) NonAliasColumn {
-	if !validIdentifierName(name) {
-		panic("Invalid column name in bytes column")
-	}
-	bc := &bytesColumn{}
-	bc.name = name
-	bc.nullable = nullable
-	return bc
-}
-
-type stringColumn struct {
-	baseColumn
-	charset   Charset
-	collation Collation
-}
-
-// Representation of VARCHAR/TEXT columns
-// This function will panic if name is not valid
-func StrColumn(
-	name string,
-	charset Charset,
-	collation Collation,
-	nullable NullableColumn) NonAliasColumn {
-
-	if !validIdentifierName(name) {
-		panic("Invalid column name in str column")
-	}
-	sc := &stringColumn{charset: charset, collation: collation}
-	sc.name = name
-	sc.nullable = nullable
-	return sc
-}
-
-type dateTimeColumn struct {
-	baseColumn
-}
-
-// Representation of DateTime columns
-// This function will panic if name is not valid
-func DateTimeColumn(name string, nullable NullableColumn) NonAliasColumn {
-	if !validIdentifierName(name) {
-		panic("Invalid column name in datetime column")
-	}
-	dc := &dateTimeColumn{}
-	dc.name = name
-	dc.nullable = nullable
-	return dc
-}
-
-type IntegerColumn struct {
-	baseColumn
-}
-
-// Representation of any integer column
-// This function will panic if name is not valid
-func IntColumn(name string, nullable NullableColumn) *IntegerColumn {
-	if !validIdentifierName(name) {
-		panic("Invalid column name in int column")
-	}
-	ic := &IntegerColumn{}
-	ic.name = name
-	ic.nullable = nullable
-	return ic
-}
-
-type doubleColumn struct {
-	baseColumn
-}
-
-// Representation of any double column
-// This function will panic if name is not valid
-func DoubleColumn(name string, nullable NullableColumn) NonAliasColumn {
-	if !validIdentifierName(name) {
-		panic("Invalid column name in int column")
-	}
-	ic := &doubleColumn{}
-	ic.name = name
-	ic.nullable = nullable
-	return ic
-}
-
-type booleanColumn struct {
-	baseColumn
-
-	// XXX: Maybe allow isBoolExpression (for now, not included because
-	// the deferred lookup equivalent can never be isBoolExpression)
-}
 
 // Representation of TINYINT used as a bool
 // This function will panic if name is not valid
-func BoolColumn(name string, nullable NullableColumn) NonAliasColumn {
+//func NewBoolColumn(name string, nullable NullableColumn) Column {
-	if !validIdentifierName(name) {
+//	if !validIdentifierName(name) {
-		panic("Invalid column name in bool column")
+//		panic("Invalid column name in bool column")
-	}
+//	}
-	bc := &booleanColumn{}
+//	bc := &booleanColumn{}
-	bc.name = name
+//	bc.name = name
-	bc.nullable = nullable
+//	bc.nullable = nullable
-	return bc
+//	return bc
-}
+//}
+//
+//type aliasColumn struct {
+//	baseColumn
+//	expression Expression
+//}
+//
+//func (c *aliasColumn) SerializeSql(out *bytes.Buffer) error {
+//	_ = out.WriteByte('`')
+//	_, _ = out.WriteString(c.name)
+//	_ = out.WriteByte('`')
+//	return nil
+//}
+//
+//func (c *aliasColumn) SerializeSqlForColumnList(out *bytes.Buffer) error {
+//	if !validIdentifierName(c.name) {
+//		return errors.Newf(
+//			"Invalid alias name `%s`.  Generated sql: %s",
+//			c.name,
+//			out.String())
+//	}
+//	if c.expression == nil {
+//		return errors.Newf(
+//			"Cannot alias a nil expression.  Generated sql: %s",
+//			out.String())
+//	}
+//
+//	_ = out.WriteByte('(')
+//	if c.expression == nil {
+//		return errors.Newf("nil alias clause.  Generate sql: %s", out.String())
+//	}
+//	if err := c.expression.SerializeSql(out); err != nil {
+//		return err
+//	}
+//	_, _ = out.WriteString(") AS \"")
+//	_, _ = out.WriteString(c.name)
+//	_ = out.WriteByte('"')
+//	return nil
+//}
 
-type aliasColumn struct {
+//func (c *aliasColumn) setTableName(table string) error {
-	baseColumn
+//	return errors.Newf(
-	expression Expression
+//		"Alias column '%s' should never have setTableName called on it",
-}
+//		c.name)
-
+//}
-func (c *aliasColumn) SerializeSql(out *bytes.Buffer) error {
-	_ = out.WriteByte('`')
-	_, _ = out.WriteString(c.name)
-	_ = out.WriteByte('`')
-	return nil
-}
-
-func (c *aliasColumn) SerializeSqlForColumnList(out *bytes.Buffer) error {
-	if !validIdentifierName(c.name) {
-		return errors.Newf(
-			"Invalid alias name `%s`.  Generated sql: %s",
-			c.name,
-			out.String())
-	}
-	if c.expression == nil {
-		return errors.Newf(
-			"Cannot alias a nil expression.  Generated sql: %s",
-			out.String())
-	}
-
-	_ = out.WriteByte('(')
-	if c.expression == nil {
-		return errors.Newf("nil alias clause.  Generate sql: %s", out.String())
-	}
-	if err := c.expression.SerializeSql(out); err != nil {
-		return err
-	}
-	_, _ = out.WriteString(") AS \"")
-	_, _ = out.WriteString(c.name)
-	_ = out.WriteByte('"')
-	return nil
-}
-
-func (c *aliasColumn) setTableName(table string) error {
-	return errors.Newf(
-		"Alias column '%s' should never have setTableName called on it",
-		c.name)
-}
 
 // Representation of aliased clauses (expression AS name)
 //func Alias(name string, c Expression) Column {

sqlbuilder/column_types.go

@@ -0,0 +1,65 @@
+package sqlbuilder
+
+//------------------------------------------------------//
+type BoolColumn struct {
+	boolInterfaceImpl
+
+	baseColumn
+}
+
+func NewBoolColumn(name string, nullable NullableColumn) *BoolColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name in bool column")
+	}
+	boolColumn := &BoolColumn{}
+	boolColumn.baseColumn = newBaseColumn(name, nullable, "", boolColumn)
+
+	boolColumn.boolInterfaceImpl.parent = boolColumn
+
+	return boolColumn
+}
+
+//------------------------------------------------------//
+type NumericColumn struct {
+	numericInterfaceImpl
+	baseColumn
+}
+
+func NewNumericColumn(name string, nullable NullableColumn) *NumericColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name")
+	}
+
+	numericColumn := &NumericColumn{}
+
+	numericColumn.numericInterfaceImpl.parent = numericColumn
+
+	numericColumn.baseColumn = newBaseColumn(name, nullable, "", numericColumn)
+
+	return numericColumn
+}
+
+//------------------------------------------------------//
+type IntegerColumn struct {
+	numericInterfaceImpl
+	integerInterfaceImpl
+
+	baseColumn
+}
+
+// Representation of any integer column
+// This function will panic if name is not valid
+func NewIntegerColumn(name string, nullable NullableColumn) *IntegerColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name")
+	}
+
+	integerColumn := &IntegerColumn{}
+
+	integerColumn.numericInterfaceImpl.parent = integerColumn
+	integerColumn.integerInterfaceImpl.parent = integerColumn
+
+	integerColumn.baseColumn = newBaseColumn(name, nullable, "", integerColumn)
+
+	return integerColumn
+}

sqlbuilder/column_types_test.go

@@ -0,0 +1,97 @@
+package sqlbuilder
+
+import (
+	"bytes"
+	"gotest.tools/assert"
+	"testing"
+)
+
+func TestNewBoolColumn(t *testing.T) {
+	boolColumn := NewBoolColumn("col", Nullable)
+
+	out := bytes.Buffer{}
+	err := boolColumn.SerializeSql(&out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = boolColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = boolColumn.setTableName("table1")
+	assert.NilError(t, err)
+	err = boolColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "table1.col"`)
+
+	out.Reset()
+	err = boolColumn.setTableName("table1")
+	assert.NilError(t, err)
+	aliasedBoolColumn := boolColumn.As("alias1")
+	err = aliasedBoolColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "alias1"`)
+}
+
+func TestNewIntColumn(t *testing.T) {
+	integerColumn := NewIntegerColumn("col", Nullable)
+
+	out := bytes.Buffer{}
+	err := integerColumn.SerializeSql(&out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = integerColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = integerColumn.setTableName("table1")
+	assert.NilError(t, err)
+	err = integerColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "table1.col"`)
+
+	out.Reset()
+	err = integerColumn.setTableName("table1")
+	assert.NilError(t, err)
+	aliasedBoolColumn := integerColumn.As("alias1")
+	err = aliasedBoolColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "alias1"`)
+}
+
+func TestNewNumericColumnColumn(t *testing.T) {
+	numericColumn := NewNumericColumn("col", Nullable)
+
+	out := bytes.Buffer{}
+	err := numericColumn.SerializeSql(&out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = numericColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), "col")
+
+	out.Reset()
+	err = numericColumn.setTableName("table1")
+	assert.NilError(t, err)
+	err = numericColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "table1.col"`)
+
+	out.Reset()
+	err = numericColumn.setTableName("table1")
+	assert.NilError(t, err)
+	aliasedBoolColumn := numericColumn.As("alias1")
+	err = aliasedBoolColumn.SerializeSql(&out, FOR_PROJECTION)
+	assert.NilError(t, err)
+	assert.Equal(t, out.String(), `table1.col AS "alias1"`)
+}

sqlbuilder/expression.go

@@ -12,7 +12,7 @@ type Expression interface {
 
 	As(alias string) Clause
 	IsDistinct(expression Expression) BoolExpression
-	IsNull(expression Expression) BoolExpression
+	IsNull() BoolExpression
 }
 
 type expressionInterfaceImpl struct {
@@ -27,31 +27,27 @@ func (e *expressionInterfaceImpl) IsDistinct(expression Expression) BoolExpressi
 	return nil
 }
 
-func (e *expressionInterfaceImpl) IsNull(expression Expression) BoolExpression {
+func (e *expressionInterfaceImpl) IsNull() BoolExpression {
 	return nil
 }
 
 // Representation of binary operations (e.g. comparisons, arithmetic)
 type binaryExpression struct {
-	expressionInterfaceImpl
 	lhs, rhs Expression
 	operator []byte
 }
 
-func NewBinaryExpression(lhs, rhs Expression, operator []byte, parent ...Expression) *binaryExpression {
+func newBinaryExpression(lhs, rhs Expression, operator []byte, parent ...Expression) binaryExpression {
 	binaryExpression := binaryExpression{
 		lhs:      lhs,
 		rhs:      rhs,
 		operator: operator,
 	}
-	if len(parent) > 0 {
+
-		binaryExpression.parent = parent[0]
+	return binaryExpression
 }
 
-	return &binaryExpression
+func (c *binaryExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
-}
-
-func (c *binaryExpression) SerializeSql(out *bytes.Buffer) (err error) {
 	if c.lhs == nil {
 		return errors.Newf("nil lhs.  Generated sql: %s", out.String())
 	}
@@ -73,25 +69,20 @@ func (c *binaryExpression) SerializeSql(out *bytes.Buffer) (err error) {
 
 // A not expression which negates a expression value
 type prefixExpression struct {
-	expressionInterfaceImpl
-
 	expression Expression
 	operator   []byte
 }
 
-func NewPrefixExpression(expression Expression, operator []byte, parent ...Expression) *prefixExpression {
+func newPrefixExpression(expression Expression, operator []byte) prefixExpression {
 	prefixExpression := prefixExpression{
 		expression: expression,
 		operator:   operator,
 	}
-	if len(parent) > 0 {
+
-		prefixExpression.parent = parent[0]
+	return prefixExpression
 }
 
-	return &prefixExpression
+func (p *prefixExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
-}
-
-func (p *prefixExpression) SerializeSql(out *bytes.Buffer) (err error) {
 	_, _ = out.Write(p.operator)
 
 	if p.expression == nil {
@@ -106,12 +97,11 @@ func (p *prefixExpression) SerializeSql(out *bytes.Buffer) (err error) {
 
 // Representation of n-ary conjunctions (AND/OR)
 type conjunctExpression struct {
-	expressionInterfaceImpl
 	expressions []BoolExpression
 	conjunction []byte
 }
 
-func (conj *conjunctExpression) SerializeSql(out *bytes.Buffer) (err error) {
+func (conj *conjunctExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
 	if len(conj.expressions) == 0 {
 		return errors.Newf(
 			"Empty conjunction.  Generated sql: %s",
@@ -154,7 +144,38 @@ func NewLiteralExpression(value sqltypes.Value) *literalExpression {
 	return &exp
 }
 
-func (c literalExpression) SerializeSql(out *bytes.Buffer) error {
+func (c literalExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	sqltypes.Value(c.value).EncodeSql(out)
 	return nil
 }
+
+//------------------------------------------------------//
+// Dummy type for select *
+type ColumnList []Column
+
+func (cl ColumnList) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
+	for i, column := range cl {
+		err := column.SerializeSql(out)
+
+		if err != nil {
+			return err
+		}
+
+		if i != len(cl)-1 {
+			out.WriteString(", ")
+		}
+	}
+	return nil
+}
+
+func (e ColumnList) As(alias string) Clause {
+	panic("Invalid usage")
+}
+
+func (e ColumnList) IsDistinct(expression Expression) BoolExpression {
+	panic("Invalid usage")
+}
+
+func (e ColumnList) IsNull(expression Expression) BoolExpression {
+	panic("Invalid usage")
+}

sqlbuilder/expression_old.go

@@ -17,7 +17,7 @@ type orderByClause struct {
 	ascent     bool
 }
 
-func (o *orderByClause) SerializeSql(out *bytes.Buffer) error {
+func (o *orderByClause) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	if o.expression == nil {
 		return errors.Newf(
 			"nil order by clause.  Generated sql: %s",
@@ -82,7 +82,7 @@ type arithmeticExpression struct {
 	operator    []byte
 }
 
-func (arith *arithmeticExpression) SerializeSql(out *bytes.Buffer) (err error) {
+func (arith *arithmeticExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
 	if len(arith.expressions) == 0 {
 		return errors.Newf(
 			"Empty arithmetic expression.  Generated sql: %s",
@@ -115,7 +115,7 @@ type tupleExpression struct {
 	elements listClause
 }
 
-func (tuple *tupleExpression) SerializeSql(out *bytes.Buffer) error {
+func (tuple *tupleExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	if len(tuple.elements.clauses) < 1 {
 		return errors.Newf("Tuples must include at least one element")
 	}
@@ -141,7 +141,7 @@ type listClause struct {
 	includeParentheses bool
 }
 
-func (list *listClause) SerializeSql(out *bytes.Buffer) error {
+func (list *listClause) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	if list.includeParentheses {
 		_ = out.WriteByte('(')
 	}
@@ -162,7 +162,7 @@ type funcExpression struct {
 	args     *listClause
 }
 
-func (c *funcExpression) SerializeSql(out *bytes.Buffer) (err error) {
+func (c *funcExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
 	if !validIdentifierName(c.funcName) {
 		return errors.Newf(
 			"Invalid function name: %s.  Generated sql: %s",
@@ -205,7 +205,7 @@ type intervalExpression struct {
 
 var intervalSep = ":"
 
-func (c *intervalExpression) SerializeSql(out *bytes.Buffer) (err error) {
+func (c *intervalExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) (err error) {
 	hours := c.duration / time.Hour
 	minutes := (c.duration % time.Hour) / time.Minute
 	sec := (c.duration % time.Minute) / time.Second
@@ -336,7 +336,7 @@ type ifExpression struct {
 	falseExpression Expression
 }
 
-func (exp *ifExpression) SerializeSql(out *bytes.Buffer) error {
+func (exp *ifExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	_, _ = out.WriteString("IF(")
 	_ = exp.conditional.SerializeSql(out)
 	_, _ = out.WriteString(",")

sqlbuilder/func.go

@@ -3,15 +3,13 @@ package sqlbuilder
 import "bytes"
 
 type FuncExpression struct {
-	isProjection
-
 	name       string
 	expression Expression
 
 	alias string
 }
 
-func (f *FuncExpression) As(alias string) Projection {
+func (f *FuncExpression) As(alias string) Clause {
 	newFuncExpression := *f
 
 	newFuncExpression.alias = alias
@@ -19,7 +17,7 @@ func (f *FuncExpression) As(alias string) Projection {
 	return &newFuncExpression
 }
 
-func (f *FuncExpression) SerializeSql(out *bytes.Buffer) error {
+func (f *FuncExpression) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	out.WriteString(f.name)
 	out.WriteString("(")
 	err := f.expression.SerializeSql(out)
@@ -37,9 +35,9 @@ func (f *FuncExpression) SerializeSql(out *bytes.Buffer) error {
 	return nil
 }
 
-func (f *FuncExpression) SerializeSqlForColumnList(out *bytes.Buffer) error {
+//func (f *FuncExpression) SerializeSqlForColumnList(out *bytes.Buffer) error {
-	return f.SerializeSql(out)
+//	return f.SerializeSql(out)
-}
+//}
 
 func MAX(expression Expression) *FuncExpression {
 	return &FuncExpression{

sqlbuilder/integer_expression.go

@@ -0,0 +1,82 @@
+package sqlbuilder
+
+type IntegerExpression interface {
+	NumericExpression
+
+	//AddInt(value int) IntegerExpression
+	//AddInt64(value int) IntegerExpression
+
+	BitAnd(expression IntegerExpression) IntegerExpression
+	BitOr(expression IntegerExpression) IntegerExpression
+	BitXor(expression IntegerExpression) IntegerExpression
+	BitNot() IntegerExpression
+}
+
+type integerInterfaceImpl struct {
+	parent IntegerExpression
+}
+
+//func (i *integerInterfaceImpl) AddInt(expression IntegerExpression) IntegerExpression {
+//	return NewBinaryIntegerExpression(i.parent, expression, " & ")
+//}
+//
+//func (i *integerInterfaceImpl) AddInt64(expression IntegerExpression) IntegerExpression {
+//	return NewBinaryIntegerExpression(i.parent, expression, " & ")
+//}
+
+func (i *integerInterfaceImpl) BitAnd(expression IntegerExpression) IntegerExpression {
+	return NewBinaryIntegerExpression(i.parent, expression, " & ")
+}
+
+func (i *integerInterfaceImpl) BitOr(expression IntegerExpression) IntegerExpression {
+	return NewBinaryIntegerExpression(i.parent, expression, " | ")
+}
+
+func (i *integerInterfaceImpl) BitXor(expression IntegerExpression) IntegerExpression {
+	return NewBinaryIntegerExpression(i.parent, expression, " # ")
+}
+
+func (i *integerInterfaceImpl) BitNot() IntegerExpression {
+	return NewPrefixIntegerExpression(i.parent, " ~")
+}
+
+//---------------------------------------------------//
+type binaryIntegerExpression struct {
+	expressionInterfaceImpl
+	numericInterfaceImpl
+	integerInterfaceImpl
+
+	binaryExpression
+}
+
+func NewBinaryIntegerExpression(lhs, rhs IntegerExpression, operator string) IntegerExpression {
+	integerExpression := binaryIntegerExpression{}
+
+	integerExpression.expressionInterfaceImpl.parent = &integerExpression
+	integerExpression.numericInterfaceImpl.parent = &integerExpression
+	integerExpression.integerInterfaceImpl.parent = &integerExpression
+
+	integerExpression.binaryExpression = newBinaryExpression(lhs, rhs, []byte(operator))
+
+	return &integerExpression
+}
+
+//---------------------------------------------------//
+type prefixIntegerExpression struct {
+	expressionInterfaceImpl
+	numericInterfaceImpl
+	integerInterfaceImpl
+
+	prefixExpression
+}
+
+func NewPrefixIntegerExpression(expression IntegerExpression, operator string) IntegerExpression {
+	integerExpression := prefixIntegerExpression{}
+	integerExpression.prefixExpression = newPrefixExpression(expression, []byte(operator))
+
+	integerExpression.expressionInterfaceImpl.parent = &integerExpression
+	integerExpression.numericInterfaceImpl.parent = &integerExpression
+	integerExpression.integerInterfaceImpl.parent = &integerExpression
+
+	return &integerExpression
+}

sqlbuilder/numeric_expression.go

@@ -0,0 +1,94 @@
+package sqlbuilder
+
+import (
+	"github.com/dropbox/godropbox/database/sqltypes"
+	"github.com/pkg/errors"
+)
+
+type NumericExpression interface {
+	Expression
+
+	Eq(expression NumericExpression) BoolExpression
+	NotEq(expression NumericExpression) BoolExpression
+	GtEq(rhs NumericExpression) BoolExpression
+	LtEq(rhs NumericExpression) BoolExpression
+
+	Add(expression NumericExpression) NumericExpression
+	Sub(expression NumericExpression) NumericExpression
+	Mul(expression NumericExpression) NumericExpression
+	Div(expression NumericExpression) NumericExpression
+}
+
+type numericInterfaceImpl struct {
+	parent NumericExpression
+}
+
+func (n *numericInterfaceImpl) Eq(expression NumericExpression) BoolExpression {
+	return Eq(n.parent, expression)
+}
+
+func (n *numericInterfaceImpl) NotEq(expression NumericExpression) BoolExpression {
+	return Neq(n.parent, expression)
+}
+
+func (n *numericInterfaceImpl) GtEq(expression NumericExpression) BoolExpression {
+	return Gte(n.parent, expression)
+}
+
+func (n *numericInterfaceImpl) LtEq(expression NumericExpression) BoolExpression {
+	return Lte(n.parent, expression)
+}
+
+func (n *numericInterfaceImpl) Add(expression NumericExpression) NumericExpression {
+	return newBinaryNumericExpression(n.parent, expression, []byte(" + "))
+}
+
+func (n *numericInterfaceImpl) Sub(expression NumericExpression) NumericExpression {
+	return newBinaryNumericExpression(n.parent, expression, []byte(" - "))
+}
+
+func (n *numericInterfaceImpl) Mul(expression NumericExpression) NumericExpression {
+	return newBinaryNumericExpression(n.parent, expression, []byte(" * "))
+}
+
+func (n *numericInterfaceImpl) Div(expression NumericExpression) NumericExpression {
+	return newBinaryNumericExpression(n.parent, expression, []byte(" / "))
+}
+
+//---------------------------------------------------//
+type numericLiteral struct {
+	numericInterfaceImpl
+	literalExpression
+}
+
+func NewNumericLiteral(value interface{}) NumericExpression {
+	numericLiteral := numericLiteral{}
+
+	sqlValue, err := sqltypes.BuildValue(value)
+	if err != nil {
+		panic(errors.Wrap(err, "Invalid literal value"))
+	}
+	numericLiteral.literalExpression = *NewLiteralExpression(sqlValue)
+	numericLiteral.numericInterfaceImpl.parent = &numericLiteral
+
+	return &numericLiteral
+}
+
+//---------------------------------------------------//
+type binaryNumericExpression struct {
+	expressionInterfaceImpl
+	numericInterfaceImpl
+
+	binaryExpression
+}
+
+func newBinaryNumericExpression(lhs, rhs Expression, operator []byte) NumericExpression {
+	numericExpression := binaryNumericExpression{}
+
+	numericExpression.binaryExpression = newBinaryExpression(lhs, rhs, operator)
+
+	numericExpression.expressionInterfaceImpl.parent = &numericExpression
+	numericExpression.numericInterfaceImpl.parent = &numericExpression
+
+	return &numericExpression
+}

sqlbuilder/select_statement.go

@@ -36,7 +36,7 @@ type selectStatementImpl struct {
 	expressionInterfaceImpl
 
 	table          ReadableTable
-	projections    []Projection
+	projections    []Expression
 	where          BoolExpression
 	group          *listClause
 	having         BoolExpression
@@ -50,7 +50,7 @@ type selectStatementImpl struct {
 
 func newSelectStatement(
 	table ReadableTable,
-	projections []Projection) SelectStatement {
+	projections []Expression) SelectStatement {
 
 	return &selectStatementImpl{
 		table:          table,
@@ -63,7 +63,7 @@ func newSelectStatement(
 	}
 }
 
-func (s *selectStatementImpl) SerializeSql(out *bytes.Buffer) error {
+func (s *selectStatementImpl) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
 	str, err := s.String()
 
 	if err != nil {
@@ -210,7 +210,7 @@ func (q *selectStatementImpl) String() (sql string, err error) {
 				"nil column selected.  Generated sql: %s",
 				buf.String())
 		}
-		if err = col.SerializeSqlForColumnList(buf); err != nil {
+		if err = col.SerializeSql(buf, FOR_PROJECTION); err != nil {
 			return
 		}
 	}

sqlbuilder/select_statement_table.go

@@ -4,22 +4,22 @@ import "bytes"
 
 type SelectStatementTable struct {
 	statement SelectStatement
-	columns   []NonAliasColumn
+	columns   []Column
 	alias     string
 }
 
-func (s *SelectStatementTable) Columns() []NonAliasColumn {
+func (s *SelectStatementTable) Columns() []Column {
 	return s.columns
 }
 
-func (s *SelectStatementTable) Column(name string) NonAliasColumn {
+func (s *SelectStatementTable) Column(name string) Column {
 	return &baseColumn{
 		name:      name,
 		tableName: s.alias,
 	}
 }
 
-func (s *SelectStatementTable) ColumnFrom(column NonAliasColumn) NonAliasColumn {
+func (s *SelectStatementTable) ColumnFrom(column Column) Column {
 	return &baseColumn{
 		name:      column.TableName() + "." + column.Name(),
 		tableName: s.alias,
@@ -43,7 +43,7 @@ func (s *SelectStatementTable) SerializeSql(out *bytes.Buffer) error {
 }
 
 // Generates a select query on the current tableName.
-func (s *SelectStatementTable) Select(projections ...Projection) SelectStatement {
+func (s *SelectStatementTable) Select(projections ...Expression) SelectStatement {
 	return newSelectStatement(s, projections)
 }
 
@@ -52,9 +52,9 @@ func (s *SelectStatementTable) InnerJoinOn(table ReadableTable, onCondition Bool
 	return InnerJoinOn(s, table, onCondition)
 }
 
-func (s *SelectStatementTable) InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable {
+//func (s *SelectStatementTable) InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable {
-	return InnerJoinOn(s, table, col1.Eq(col2))
+//	return InnerJoinOn(s, table, col1.Eq(col2))
-}
+//}
 
 // Creates a left join tableName expression using onCondition.
 func (s *SelectStatementTable) LeftJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
@@ -66,8 +66,8 @@ func (s *SelectStatementTable) RightJoinOn(table ReadableTable, onCondition Bool
 	return RightJoinOn(s, table, onCondition)
 }
 
-func (s *SelectStatementTable) FullJoin(table ReadableTable, col1 Column, col2 Column) ReadableTable {
+func (s *SelectStatementTable) FullJoin(table ReadableTable, onCondition BoolExpression) ReadableTable {
-	return FullJoin(s, table, col1.Eq(col2))
+	return FullJoin(s, table, onCondition)
 }
 
 func (s *SelectStatementTable) CrossJoin(table ReadableTable) ReadableTable {

sqlbuilder/statement.go

@@ -20,7 +20,7 @@ type InsertStatement interface {
 
 	// Add a row of values to the insert statement.
 	Add(row ...Expression) InsertStatement
-	AddOnDuplicateKeyUpdate(col NonAliasColumn, expr Expression) InsertStatement
+	AddOnDuplicateKeyUpdate(col Column, expr Expression) InsertStatement
 	Comment(comment string) InsertStatement
 	IgnoreDuplicates(ignore bool) InsertStatement
 }
@@ -48,7 +48,7 @@ type UnionStatement interface {
 type UpdateStatement interface {
 	Statement
 
-	Set(column NonAliasColumn, expression Expression) UpdateStatement
+	Set(column Column, expression Expression) UpdateStatement
 	Where(expression BoolExpression) UpdateStatement
 	OrderBy(clauses ...OrderByClause) UpdateStatement
 	Limit(limit int64) UpdateStatement
@@ -178,7 +178,7 @@ func (us *unionStatementImpl) String() (sql string, err error) {
 	}
 
 	// Union statements in MySQL require that the same number of columns in each subquery
-	var projections []Projection
+	var projections []Expression
 
 	for _, statement := range us.selects {
 		// do a type assertion to get at the underlying struct
@@ -267,7 +267,7 @@ func (us *unionStatementImpl) String() (sql string, err error) {
 
 func newInsertStatement(
 	t WritableTable,
-	columns ...NonAliasColumn) InsertStatement {
+	columns ...Column) InsertStatement {
 
 	return &insertStatementImpl{
 		table:                 t,
@@ -278,13 +278,13 @@ func newInsertStatement(
 }
 
 type columnAssignment struct {
-	col  NonAliasColumn
+	col  Column
 	expr Expression
 }
 
 type insertStatementImpl struct {
 	table                 WritableTable
-	columns               []NonAliasColumn
+	columns               []Column
 	rows                  [][]Expression
 	onDuplicateKeyUpdates []columnAssignment
 	comment               string
@@ -303,7 +303,7 @@ func (s *insertStatementImpl) Add(
 }
 
 func (s *insertStatementImpl) AddOnDuplicateKeyUpdate(
-	col NonAliasColumn,
+	col Column,
 	expr Expression) InsertStatement {
 
 	s.onDuplicateKeyUpdates = append(
@@ -361,7 +361,7 @@ func (s *insertStatementImpl) String() (sql string, err error) {
 				buf.String())
 		}
 
-		if err = col.SerializeSqlForColumnList(buf); err != nil {
+		if err = col.SerializeSql(buf, FOR_PROJECTION); err != nil {
 			return
 		}
 	}
@@ -413,12 +413,11 @@ func (s *insertStatementImpl) String() (sql string, err error) {
 
 			if colExpr.col == nil {
 				return "", errors.Newf(
-					("nil column in on duplicate key update list.  " +
+					"nil column in on duplicate key update list.  "+"Generated sql: %s",
-						"Generated sql: %s"),
 					buf.String())
 			}
 
-			if err = colExpr.col.SerializeSqlForColumnList(buf); err != nil {
+			if err = colExpr.col.SerializeSql(buf, FOR_PROJECTION); err != nil {
 				return
 			}
 
@@ -426,8 +425,7 @@ func (s *insertStatementImpl) String() (sql string, err error) {
 
 			if colExpr.expr == nil {
 				return "", errors.Newf(
-					("nil expression in on duplicate key update list.  " +
+					"nil expression in on duplicate key update list.  "+"Generated sql: %s",
-						"Generated sql: %s"),
 					buf.String())
 			}
 
@@ -447,14 +445,14 @@ func (s *insertStatementImpl) String() (sql string, err error) {
 func newUpdateStatement(table WritableTable) UpdateStatement {
 	return &updateStatementImpl{
 		table:        table,
-		updateValues: make(map[NonAliasColumn]Expression),
+		updateValues: make(map[Column]Expression),
 		limit:        -1,
 	}
 }
 
 type updateStatementImpl struct {
 	table        WritableTable
-	updateValues map[NonAliasColumn]Expression
+	updateValues map[Column]Expression
 	where        BoolExpression
 	order        *listClause
 	limit        int64
@@ -466,7 +464,7 @@ func (u *updateStatementImpl) Execute(db *sql.DB, data interface{}) error {
 }
 
 func (u *updateStatementImpl) Set(
-	column NonAliasColumn,
+	column Column,
 	expression Expression) UpdateStatement {
 
 	u.updateValues[column] = expression

sqlbuilder/table.go

@@ -12,22 +12,21 @@ import (
 // are not supported.
 type ReadableTable interface {
 	// Returns the list of columns that are in the current tableName expression.
-	Columns() []NonAliasColumn
+	Columns() []Column
 
-	Column(name string) NonAliasColumn
+	Column(name string) Column
 
 	// Generates the sql string for the current tableName expression.  Note: the
 	// generated string may not be a valid/executable sql statement.
-	// The database is the name of the database the tableName is on
 	SerializeSql(out *bytes.Buffer) error
 
 	// Generates a select query on the current tableName.
-	Select(projections ...Projection) SelectStatement
+	Select(projections ...Expression) SelectStatement
 
 	// Creates a inner join tableName expression using onCondition.
 	InnerJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable
 
-	InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable
+	//InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable
 
 	// Creates a left join tableName expression using onCondition.
 	LeftJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable
@@ -35,7 +34,7 @@ type ReadableTable interface {
 	// Creates a right join tableName expression using onCondition.
 	RightJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable
 
-	FullJoin(table ReadableTable, col1 Column, col2 Column) ReadableTable
+	FullJoin(table ReadableTable, onCondition BoolExpression) ReadableTable
 
 	CrossJoin(table ReadableTable) ReadableTable
 }
@@ -43,21 +42,21 @@ type ReadableTable interface {
 // The sql tableName write interface.
 type WritableTable interface {
 	// Returns the list of columns that are in the tableName.
-	Columns() []NonAliasColumn
+	Columns() []Column
 
 	// Generates the sql string for the current tableName expression.  Note: the
 	// generated string may not be a valid/executable sql statement.
 	// The database is the name of the database the tableName is on
 	SerializeSql(out *bytes.Buffer) error
 
-	Insert(columns ...NonAliasColumn) InsertStatement
+	Insert(columns ...Column) InsertStatement
 	Update() UpdateStatement
 	Delete() DeleteStatement
 }
 
 // Defines a physical tableName in the database that is both readable and writable.
 // This function will panic if name is not valid
-func NewTable(schemaName, name string, columns ...NonAliasColumn) *Table {
+func NewTable(schemaName, name string, columns ...Column) *Table {
 	if !validIdentifierName(name) {
 		panic("Invalid tableName name")
 	}
@@ -66,7 +65,7 @@ func NewTable(schemaName, name string, columns ...NonAliasColumn) *Table {
 		schemaName:   schemaName,
 		name:         name,
 		columns:      columns,
-		columnLookup: make(map[string]NonAliasColumn),
+		columnLookup: make(map[string]Column),
 	}
 	for _, c := range columns {
 		err := c.setTableName(name)
@@ -87,21 +86,21 @@ type Table struct {
 	schemaName   string
 	name         string
 	alias        string
-	columns      []NonAliasColumn
+	columns      []Column
-	columnLookup map[string]NonAliasColumn
+	columnLookup map[string]Column
 	// If not empty, the name of the index to force
 	forcedIndex string
 }
 
 // Returns the specified column, or errors if it doesn't exist in the tableName
-func (t *Table) getColumn(name string) (NonAliasColumn, error) {
+func (t *Table) getColumn(name string) (Column, error) {
 	if c, ok := t.columnLookup[name]; ok {
 		return c, nil
 	}
 	return nil, errors.Newf("No such column '%s' in tableName '%s'", name, t.name)
 }
 
-func (t *Table) Column(name string) NonAliasColumn {
+func (t *Table) Column(name string) Column {
 	return &baseColumn{
 		name:      name,
 		nullable:  NotNullable,
@@ -109,9 +108,9 @@ func (t *Table) Column(name string) NonAliasColumn {
 	}
 }
 
-// Returns all columns for a tableName as a slice of projections
+// Returns all expresssion for a tableName as a slice of projections
-func (t *Table) Projections() []Projection {
+func (t *Table) Projections() []Expression {
-	result := make([]Projection, 0)
+	result := make([]Expression, 0)
 
 	for _, col := range t.columns {
 		col.Asc()
@@ -142,7 +141,7 @@ func (t *Table) SchemaName() string {
 }
 
 // Returns a list of the tableName's columns
-func (t *Table) Columns() []NonAliasColumn {
+func (t *Table) Columns() []Column {
 	return t.columns
 }
 
@@ -182,7 +181,7 @@ func (t *Table) SerializeSql(out *bytes.Buffer) error {
 }
 
 // Generates a select query on the current tableName.
-func (t *Table) Select(projections ...Projection) SelectStatement {
+func (t *Table) Select(projections ...Expression) SelectStatement {
 	return newSelectStatement(t, projections)
 }
 
@@ -194,13 +193,13 @@ func (t *Table) InnerJoinOn(
 	return InnerJoinOn(t, table, onCondition)
 }
 
-func (t *Table) InnerJoinUsing(
+//func (t *Table) InnerJoinUsing(
-	table ReadableTable,
+//	table ReadableTable,
-	col1 Column,
+//	col1 Column,
-	col2 Column) ReadableTable {
+//	col2 Column) ReadableTable {
-
+//
-	return InnerJoinOn(t, table, col1.Eq(col2))
+//	return InnerJoinOn(t, table, col1.Eq(col2))
-}
+//}
 
 // Creates a left join tableName expression using onCondition.
 func (t *Table) LeftJoinOn(
@@ -218,15 +217,15 @@ func (t *Table) RightJoinOn(
 	return RightJoinOn(t, table, onCondition)
 }
 
-func (t *Table) FullJoin(table ReadableTable, col1, col2 Column) ReadableTable {
+func (t *Table) FullJoin(table ReadableTable, onCondition BoolExpression) ReadableTable {
-	return FullJoin(t, table, col1.Eq(col2))
+	return FullJoin(t, table, onCondition)
 }
 
 func (t *Table) CrossJoin(table ReadableTable) ReadableTable {
 	return CrossJoin(t, table)
 }
 
-func (t *Table) Insert(columns ...NonAliasColumn) InsertStatement {
+func (t *Table) Insert(columns ...Column) InsertStatement {
 	return newInsertStatement(t, columns...)
 }
 
@@ -309,15 +308,15 @@ func CrossJoin(
 	return newJoinTable(lhs, rhs, CROSS_JOIN, nil)
 }
 
-func (t *joinTable) Columns() []NonAliasColumn {
+func (t *joinTable) Columns() []Column {
-	columns := make([]NonAliasColumn, 0)
+	columns := make([]Column, 0)
 	columns = append(columns, t.lhs.Columns()...)
 	columns = append(columns, t.rhs.Columns()...)
 
 	return columns
 }
 
-func (t *joinTable) Column(name string) NonAliasColumn {
+func (t *joinTable) Column(name string) Column {
 	panic("Not implemented")
 }
 
@@ -364,7 +363,7 @@ func (t *joinTable) SerializeSql(out *bytes.Buffer) (err error) {
 	return nil
 }
 
-func (t *joinTable) Select(projections ...Projection) SelectStatement {
+func (t *joinTable) Select(projections ...Expression) SelectStatement {
 	return newSelectStatement(t, projections)
 }
 
@@ -375,14 +374,6 @@ func (t *joinTable) InnerJoinOn(
 	return InnerJoinOn(t, table, onCondition)
 }
 
-func (t *joinTable) InnerJoinUsing(
-	table ReadableTable,
-	col1 Column,
-	col2 Column) ReadableTable {
-
-	return InnerJoinOn(t, table, col1.Eq(col2))
-}
-
 func (t *joinTable) LeftJoinOn(
 	table ReadableTable,
 	onCondition BoolExpression) ReadableTable {
@@ -390,8 +381,8 @@ func (t *joinTable) LeftJoinOn(
 	return LeftJoinOn(t, table, onCondition)
 }
 
-func (t *joinTable) FullJoin(table ReadableTable, col1 Column, col2 Column) ReadableTable {
+func (t *joinTable) FullJoin(table ReadableTable, onCondition BoolExpression) ReadableTable {
-	return FullJoin(t, table, col1.Eq(col2))
+	return FullJoin(t, table, onCondition)
 }
 
 func (t *joinTable) CrossJoin(table ReadableTable) ReadableTable {

sqlbuilder/test_utils.go

@@ -1,3 +1,5 @@
+// +build disabled
+
 package sqlbuilder
 
 var table1Col1 = IntColumn("col1", Nullable)

sqlbuilder/types.go

@@ -1,9 +1,5 @@
 package sqlbuilder
 
-import (
-	"bytes"
-)
-
 // A clause that can be used in order by
 type OrderByClause interface {
 	Clause
@@ -11,43 +7,43 @@ type OrderByClause interface {
 }
 
 // A clause that is selectable.
-type Projection interface {
+//type Projection interface {
-	Clause
+//	Clause
-	isProjectionInterface
+//	isProjectionInterface
+//
+//	SerializeSqlForColumnList(out *bytes.Buffer) error
+//}
 
-	SerializeSqlForColumnList(out *bytes.Buffer) error
+//type ColumnList []Column
-}
+//
+//func (cl ColumnList) SerializeSql(out *bytes.Buffer, options ...serializeOption) error {
+//	for i, column := range cl {
+//		column.SerializeSql(out)
+//
+//		if i != len(cl)-1 {
+//			out.WriteString(", ")
+//		}
+//	}
+//	return nil
+//}
+//
+//func (cl ColumnList) isProjectionType() {
+//}
+//
+//func (cl ColumnList) As(name string) Clause {
+//	panic("Unallowed operation ")
+//}
 
-type ColumnList []NonAliasColumn
+//func (cl ColumnList) SerializeSqlForColumnList(out *bytes.Buffer) error {
-
+//	for i, column := range cl {
-func (cl ColumnList) SerializeSql(out *bytes.Buffer) error {
+//		column.SerializeSqlForColumnList(out)
-	for i, column := range cl {
+//
-		column.SerializeSql(out)
+//		if i != len(cl)-1 {
-
+//			out.WriteString(", ")
-		if i != len(cl)-1 {
+//		}
-			out.WriteString(", ")
+//	}
-		}
+//	return nil
-	}
+//}
-	return nil
-}
-
-func (cl ColumnList) isProjectionType() {
-}
-
-func (cl ColumnList) As(name string) Projection {
-	panic("Unallowed operation ")
-}
-
-func (cl ColumnList) SerializeSqlForColumnList(out *bytes.Buffer) error {
-	for i, column := range cl {
-		column.SerializeSqlForColumnList(out)
-
-		if i != len(cl)-1 {
-			out.WriteString(", ")
-		}
-	}
-	return nil
-}
 
 //
 // Boiler plates ...
@@ -63,12 +59,13 @@ type isOrderByClause struct {
 func (o *isOrderByClause) isOrderByClauseType() {
 }
 
-type isProjectionInterface interface {
+//
-	isProjectionType()
+//type isProjectionInterface interface {
-}
+//	isProjectionType()
-
+//}
-type isProjection struct {
+//
-}
+//type isProjection struct {
-
+//}
-func (p *isProjection) isProjectionType() {
+//
-}
+//func (p *isProjection) isProjectionType() {
+//}

sqlbuilder/utils.go

@@ -0,0 +1 @@
+package sqlbuilder