Update comment.

lib/typing/columns/columns.go

@@ -13,11 +13,12 @@ import (
 	"github.com/artie-labs/transfer/lib/typing"
 )
 
-// EscapeName - will lowercase columns and escape spaces.
 func EscapeName(name string) string {
+	// Lowercasing and escaping spaces.
 	_, name = stringutil.EscapeSpaces(strings.ToLower(name))
 
 	// Does the column name start with a number? If so, let's prefix `col_` to the column name.
+	// We're doing this most databases do not allow column names to start with a number.
 	if _, err := strconv.Atoi(string(name[0])); err == nil {
 		name = "col_" + name
 	}