hash/numeric_ops (class)

Hash operator class for numeric; member of numeric_ops.

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Object kind: Operator class
Index AM: Hash
Input type: numeric
Stored key type: Same as input type (catalog zero)
Default class: yes
aliases: numeric_ops, hash/numeric_ops
classes: map[default:t family:numeric_ops family_slug:family-hash-numeric_ops input_type:numeric key_type:none method:hash name:numeric_ops slug:class-hash-numeric_ops source_oid:]
signature: hash/numeric_ops
source oid: 未知

版本定义 PG 18

Hash operator class for numeric; member of numeric_ops.

Family operator strategies

Operator overload	Strategy	Purpose	Ordering family	Membership scope	Source description
=(numeric,numeric)	1	search		Class input pair	equal

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	numeric	numeric	hash_numeric(numeric)	int4
2	numeric	numeric	hash_numeric_extended(numeric,int8)	int8

Classes in this family

Class	Input type	Key type	Default
numeric_ops	numeric	Same as input type	yes

比较版本

完整来源事实

class

{"default":"t","family":"numeric_ops","input_type":"numeric","key_type":"none","method":"hash","name":"numeric_ops"}

operators

map[description:equal family:numeric_ops family_slug:family-hash-numeric_ops left_type:numeric method:hash operator:=(numeric,numeric) operator_slug:op-3d-numeric-numeric purpose:search result_type:bool right_type:numeric sort_family: sort_family_slug: strategy:1]

support functions

map[family:numeric_ops family_slug:family-hash-numeric_ops function:hash_numeric(numeric) left_type:numeric method:hash number:1 result_type:int4 right_type:numeric], map[family:numeric_ops family_slug:family-hash-numeric_ops function:hash_numeric_extended(numeric,int8) left_type:numeric method:hash number:2 result_type:int8 right_type:numeric]

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