dump 로직, 로깅 로직 개선

internal/userprogram/dumper.go

@@ -188,8 +188,8 @@ func scanRow(rows *sql.Rows) ([]string, error) {
 		userCompany    sql.NullString
 		userDepartment sql.NullString
 		userPosition   sql.NullString
-		userLoginTime  sql.NullTime
-		createdAt      sql.NullTime
+		userLoginTime  sql.NullString
+		createdAt      sql.NullString
 		userFamilyFlag sql.NullString
 	)
 
@@ -225,8 +225,8 @@ func scanRow(rows *sql.Rows) ([]string, error) {
 		nullToString(userCompany),
 		nullToString(userDepartment),
 		nullToString(userPosition),
-		formatTimestamp(userLoginTime),
-		formatTimestamp(createdAt),
+		formatTimestamp(userLoginTime.String),
+		formatTimestamp(createdAt.String),
 		nullToString(userFamilyFlag),
 	}, nil
 }
@@ -242,9 +242,22 @@ func netAddr(host string, port int) string {
 	return fmt.Sprintf("%s:%d", host, port)
 }
 
-func formatTimestamp(t sql.NullTime) string {
-	if !t.Valid {
+func formatTimestamp(raw string) string {
+	if raw == "" {
 		return ""
 	}
-	return t.Time.In(kst()).Format("2006-01-02 15:04:05.000")
+	for _, layout := range []string{
+		"2006-01-02 15:04:05.000",
+		"2006-01-02 15:04:05",
+		time.RFC3339,
+		"2006-01-02T15:04:05.000Z07:00",
+	} {
+		if t, err := time.Parse(layout, raw); err == nil {
+			return t.In(kst()).Format("2006-01-02 15:04:05.000")
+		}
+		if t, err := time.ParseInLocation(layout, raw, kst()); err == nil {
+			return t.In(kst()).Format("2006-01-02 15:04:05.000")
+		}
+	}
+	return raw
 }