Initial working stage, but not with all tests, because IF NOT EXISTS is not implemented

sql/ast.go

@@ -0,0 +1,24 @@
+package sql
+
+import "fmt"
+
+type CreateTableStatement struct {
+	TableName string
+	Columns   []Column
+}
+
+func (c *CreateTableStatement) Print() {
+fmt.Printf("Name: %v\nColumns:\n", c.TableName)
+	for _, column := range c.Columns {
+		fmt.Printf("- Name: %v\n  Type: %v\n  Extras:\n", column.Name, column.Type)
+		for _, extra := range column.Extra {
+			fmt.Printf("  - %v\n", extra)
+		}
+	}
+}
+
+type Column struct {
+	Name  string
+	Type  string
+	Extra []string
+}