Add column DEFAULT attribute. Do not add if field is key or in

relations.

@@ -104,7 +104,11 @@ func getColumnAddQuery(al *alias, fi *fieldInfo) string {
 		typ += " " + "NOT NULL"
 		typ += " " + "NOT NULL"
 	}
 	}
 
 
-	return fmt.Sprintf("ALTER TABLE %s%s%s ADD COLUMN %s%s%s %s", Q, fi.mi.table, Q, Q, fi.column, Q, typ)
+	return fmt.Sprintf("ALTER TABLE %s%s%s ADD COLUMN %s%s%s %s %s", 
+		Q, fi.mi.table, Q, 
+		Q, fi.column, Q, 
+		typ, getColumnDefault(fi),
+	)
 }
 }
 
 
 // create database creation string.
 // create database creation string.
@@ -156,6 +160,9 @@ func getDbCreateSql(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 				//	column += " DEFAULT " + fi.initial.String()
 				//	column += " DEFAULT " + fi.initial.String()
 				//}
 				//}
 				
 				
+				// Append attribute DEFAULT
+				column += getColumnDefault(fi)
+
 				if fi.unique {
 				if fi.unique {
 					column += " " + "UNIQUE"
 					column += " " + "UNIQUE"
 				}
 				}
@@ -240,6 +247,7 @@ func getDbCreateSql(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 	return
 	return
 }
 }
 
 
+
 // Get string value for the attribute "DEFAULT" for the CREATE, ALTER commands
 // Get string value for the attribute "DEFAULT" for the CREATE, ALTER commands
 func getColumnDefault(fi *fieldInfo) string {
 func getColumnDefault(fi *fieldInfo) string {
 	var (
 	var (

@@ -116,6 +116,7 @@ type fieldInfo struct {
 	null                bool
 	null                bool
 	index               bool
 	index               bool
 	unique              bool
 	unique              bool
+	colDefault          bool
 	initial             StrTo
 	initial             StrTo
 	size                int
 	size                int
 	auto_now            bool
 	auto_now            bool
@@ -280,6 +281,11 @@ checkType:
 	fi.pk = attrs["pk"]
 	fi.pk = attrs["pk"]
 	fi.unique = attrs["unique"]
 	fi.unique = attrs["unique"]
 
 
+	// Mark object property if there is attribute "default" in the orm configuration
+	if _, ok := tags["default"]; ok {
+		fi.colDefault = true
+	}
+
 	switch fieldType {
 	switch fieldType {
 	case RelManyToMany, RelReverseMany, RelReverseOne:
 	case RelManyToMany, RelReverseMany, RelReverseOne:
 		fi.null = false
 		fi.null = false