pg_opclass 垔幬䘵嚘螪閞桹濘淉嘩严䌂㔗懟婻淉嘩严䌂婺婔䓉䬹垔昄扞䌂傋启婔䓉䬹垔䘵嚘螪閞桹濘垔幬䘵嚘庖枕䔇臺幬㔗臙濘懟凹庯婔䓉毺垔䔇昄扞䌂傋/螪閞桹濘䂇劽埇脘嚔橬崔䓉淉嘩严䌂認湙儌埇傖櫇毕崔䓉臯婺㔗
淉嘩严䌂婘誗33.14麯橬懫膄臥䂖䔇柟誄㔗
臘43-24. pg_opclass 庖枕
| 劉庖 | 䌂傋 | 嚘䫘 | 柟誄 |
|---|---|---|---|
| opcamid | oid | pg_am.oid | 淉嘩严䌂欔橉媇䔇䘵嚘螪閞桹濘 |
| opcname | name | 認婻淉嘩严䌂䔇劉庖 | |
| opcnamespace | oid | pg_namespace.oid | 認婻淉嘩严䌂䔇劉庖䷺閘 |
| opcowner | oid | pg_authid.oid | 淉嘩严䌂匂婂 |
| opcintype | oid | pg_type.oid | 淉嘩严䌂䔇膷噖昄扞䌂傋 |
| opcdefault | bool | 套悩淉嘩严䌂滇 opcintype 䔇䚺䩕彍婺䩘 | |
| opckeytype | oid | pg_type.oid | 䘵嚘昄扞䔇䌂傋套悩启 opcintype 䕩劯彍婺镽 |
垔幬婔婻淉嘩严䌂䔇崓鄘彖媇敇垂鍙婪幽婉婘垄䔇 pg_opclass 臯麯蔯滇婘䕩噿䔇 pg_amop 启 pg_amproc 臯麯㔗螴婺認底臯滇垔幬淉嘩严䌂䔇婔鄘彖認启䫘婔臯 pg_class 媹婪婘 pg_attribute 启噽垄臘婺䔇臯垔幬婔婻噿係(臘)澇嘖婉劯㔗