relname |oid| relfilenode---+---+---t_id |17818|17818(1row)-- 解释 objid 在classid对应记录的条目位置test_db=#selectrelname,oid,relfilenodefrompg_classwhereoid=17821; relname |oid| relfilenode---+---+---pg_toast_17818 |17821|17821(1row) test_db=#select*frompg_typewhereoid=17820;...
relname |oid| relfilenode---+---+---t_id |17818|17818(1row)-- 解释 objid 在classid对应记录的条目位置test_db=#selectrelname,oid,relfilenodefrompg_classwhereoid=17821; relname |oid| relfilenode---+---+---pg_toast_17818 |17821|17821(1row) test_db=#select*frompg_typewhereoid=17820;...