diff --git a/dialect.go b/dialect.go
index 926f8a11..aa23e31b 100644
--- a/dialect.go
+++ b/dialect.go
@@ -25,8 +25,6 @@ func NewDialect(driver string) Dialect {
 	switch driver {
 	case "postgres":
 		d = &postgres{}
-	case "foundation":
-		d = &foundation{}
 	case "mysql":
 		d = &mysql{}
 	case "sqlite3":
diff --git a/common_dialect.go b/dialect_common.go
similarity index 100%
rename from common_dialect.go
rename to dialect_common.go
diff --git a/mssql.go b/dialect_mssql.go
similarity index 100%
rename from mssql.go
rename to dialect_mssql.go
diff --git a/mysql.go b/dialect_mysql.go
similarity index 100%
rename from mysql.go
rename to dialect_mysql.go
diff --git a/postgres.go b/dialect_postgres.go
similarity index 100%
rename from postgres.go
rename to dialect_postgres.go
diff --git a/sqlite3.go b/dialect_sqlite3.go
similarity index 100%
rename from sqlite3.go
rename to dialect_sqlite3.go
diff --git a/foundation.go b/foundation.go
deleted file mode 100644
index 422fcc60..00000000
--- a/foundation.go
+++ /dev/null
@@ -1,83 +0,0 @@
-package gorm
-
-import (
-	"fmt"
-	"reflect"
-	"time"
-)
-
-type foundation struct {
-	commonDialect
-}
-
-func (foundation) BinVar(i int) string {
-	return fmt.Sprintf("$%v", i)
-}
-
-func (foundation) SupportLastInsertId() bool {
-	return false
-}
-
-func (foundation) SqlTag(value reflect.Value, size int, autoIncrease bool) string {
-	switch value.Kind() {
-	case reflect.Bool:
-		return "boolean"
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
-		if autoIncrease {
-			return "serial"
-		}
-		return "int"
-	case reflect.Int64, reflect.Uint64:
-		if autoIncrease {
-			return "bigserial"
-		}
-		return "bigint"
-	case reflect.Float32, reflect.Float64:
-		return "double"
-	case reflect.String:
-		if size > 0 && size < 65532 {
-			return fmt.Sprintf("varchar(%d)", size)
-		}
-		return "clob"
-	case reflect.Struct:
-		if _, ok := value.Interface().(time.Time); ok {
-			return "datetime"
-		}
-	default:
-		if _, ok := value.Interface().([]byte); ok {
-			return "blob"
-		}
-	}
-	panic(fmt.Sprintf("invalid sql type %s (%s) for foundation", value.Type().Name(), value.Kind().String()))
-}
-
-func (s foundation) ReturningStr(tableName, key string) string {
-	return fmt.Sprintf("RETURNING %v.%v", tableName, key)
-}
-
-func (s foundation) HasTable(scope *Scope, tableName string) bool {
-	var count int
-	s.RawScanInt(scope, &count, "SELECT count(*) FROM INFORMATION_SCHEMA.tables WHERE table_schema = current_schema AND table_type = 'TABLE' AND table_name = ?", tableName)
-	return count > 0
-}
-
-func (s foundation) HasColumn(scope *Scope, tableName string, columnName string) bool {
-	var count int
-	s.RawScanInt(scope, &count, "SELECT count(*) FROM INFORMATION_SCHEMA.columns WHERE table_schema = current_schema AND table_name = ? AND column_name = ?", tableName, columnName)
-	return count > 0
-}
-
-func (s foundation) RemoveIndex(scope *Scope, indexName string) {
-	scope.NewDB().Exec(fmt.Sprintf("DROP INDEX %v", s.Quote(indexName)))
-}
-
-func (s foundation) HasIndex(scope *Scope, tableName string, indexName string) bool {
-	var count int
-	s.RawScanInt(scope, &count, "SELECT count(*) FROM INFORMATION_SCHEMA.indexes WHERE table_schema = current_schema AND table_name = ? AND index_name = ?", tableName, indexName)
-	return count > 0
-}
-
-func (s foundation) CurrentDatabase(scope *Scope) (name string) {
-	s.RawScanString(scope, &name, "SELECT CURRENT_SCHEMA")
-	return
-}