↑↓ 选择↵ 打开⌫ 切换范围完整搜索

PG.CENTER 连接 PostgreSQL 文档、百科与生态知识。由 Pigsty 维护。

Wiki / 操作符族

hash/bool_ops (class)

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

版本定义 PG 18

Hash operator class for bool; member of bool_ops.

Family operator strategies

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

Family support functions

Support numberLeft typeRight typeFunction signatureResult type
1boolboolhashbool(bool)int4
2boolboolhashboolextended(bool,int8)int8

Classes in this family

ClassInput typeKey typeDefault
bool_opsboolSame as input typeyes

比较版本

完整来源事实

class

{"default":"t","family":"bool_ops","input_type":"bool","key_type":"none","method":"hash","name":"bool_ops"}

support functions

map[family:bool_ops family_slug:family-hash-bool_ops function:hashbool(bool) left_type:bool method:hash number:1 result_type:int4 right_type:bool], map[family:bool_ops family_slug:family-hash-bool_ops function:hashboolextended(bool,int8) left_type:bool method:hash number:2 result_type:int8 right_type:bool]

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