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hash/oid_ops (class)

Hash operator class for oid; member of oid_ops.

当前阅读 PG 18·选择有来源记录的版本

此版本暂无所选语言的定义,以下显示原始英文内容。

Object kind
Operator class
Index AM
Hash
Input type
oid
Stored key type
Same as input type (catalog zero)
Default class
yes
aliases
oid_ops, hash/oid_ops
classes
map[default:t family:oid_ops family_slug:family-hash-oid_ops input_type:oid key_type:none method:hash name:oid_ops slug:class-hash-oid_ops source_oid:]
operators
map[description:equal family:oid_ops family_slug:family-hash-oid_ops left_type:oid method:hash operator:=(oid,oid) operator_slug:op-3d-oid-oid purpose:search result_type:bool right_type:oid sort_family: sort_family_slug: strategy:1]
signature
hash/oid_ops
source oid
未知

版本定义 PG 18

Hash operator class for oid; member of oid_ops.

Family operator strategies

Operator overloadStrategyPurposeOrdering familyMembership scopeSource description
=(oid,oid)1searchClass input pairequal

Family support functions

Support numberLeft typeRight typeFunction signatureResult type
1oidoidhashoid(oid)int4
2oidoidhashoidextended(oid,int8)int8

Classes in this family

ClassInput typeKey typeDefault
oid_opsoidSame as input typeyes

比较版本

完整来源事实

class

{"default":"t","family":"oid_ops","input_type":"oid","key_type":"none","method":"hash","name":"oid_ops"}

support functions

map[family:oid_ops family_slug:family-hash-oid_ops function:hashoid(oid) left_type:oid method:hash number:1 result_type:int4 right_type:oid], map[family:oid_ops family_slug:family-hash-oid_ops function:hashoidextended(oid,int8) left_type:oid method:hash number:2 result_type:int8 right_type:oid]

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

正文语言: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f