- * \return Positive on success, negative on errors. Possible errors include:
- * errors returned by init_table_structure(), \p E_NOENT, \p E_STAT, \p \p
- * E_NOTDIR, \p E_BAD_TABLE_DESC, \p E_BAD_DB_DIR, \p E_NO_COMPARE_FUNC, \p
- * E_NO_COLUMN_NAME, errors returned by init_rbtrees().