Function identifierKey

backend/plugin/parser/tidb/backup.go:167–172

identifierKey normalizes an identifier for use as a map key/lookup, honoring the instance's case sensitivity. TiDB resolves table-name and alias qualifiers case-insensitively by default, so a case-mismatched reference (UPDATE test AS T SET t.c = ...) must still resolve to the same table.

(name string, isCaseSensitive bool)

// qualifiers case-insensitively by default, so a case-mismatched reference
// (UPDATE test AS T SET t.c = ...) must still resolve to the same table.
func identifierKey(name string, isCaseSensitive bool) string {
	if isCaseSensitive {
		return name
	}
	return strings.ToLower(name)
}

// requireTargets fails when a recognized DML statement yields no backup target.
// Returning an empty list with no error would let the task executor treat the