=(float4,float8)

equal

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。

Left operand: float4
Right operand: float8
Result type: bool
Implementing function: float48eq(float4,float8)
Operator kind: Binary
Hash join candidate: yes
Merge join candidate: yes
aliases: =, =(float4,float8)
manual semantics: Source catalog description; no additional matching manual operator definition claimed
signature: =(float4,float8) → bool
source oid: 1120

版本定义 PG 18

equal

Declared operator-family membership

Index AM	Family	Strategy	Purpose
B-tree	float_ops	3	search
Hash	float_ops	1	search
BRIN	float_minmax_ops	3	search
BRIN	float_minmax_multi_ops	3	search

比较版本

完整来源事实

memberships

map[description:equal family:float_ops family_slug:family-btree-float_ops left_type:float4 method:btree operator:=(float4,float8) operator_slug:op-3d-float4-float8 purpose:search result_type:bool right_type:float8 sort_family: sort_family_slug: strategy:3], map[description:equal family:float_ops family_slug:family-hash-float_ops left_type:float4 method:hash operator:=(float4,float8) operator_slug:op-3d-float4-float8 purpose:search result_type:bool right_type:float8 sort_family: sort_family_slug: strategy:1], map[description:equal family:float_minmax_ops family_slug:family-brin-float_minmax_ops left_type:float4 method:brin operator:=(float4,float8) operator_slug:op-3d-float4-float8 purpose:search result_type:bool right_type:float8 sort_family: sort_family_slug: strategy:3], map[description:equal family:float_minmax_multi_ops family_slug:family-brin-float_minmax_multi_ops left_type:float4 method:brin operator:=(float4,float8) operator_slug:op-3d-float4-float8 purpose:search result_type:bool right_type:float8 sort_family: sort_family_slug: strategy:3]

operator

{"commutator":"=(float8,float4)","function":"float48eq(float4,float8)","hash_join":"t","kind":"b","left_type":"float4","merge_join":"t","negator":"\u003c\u003e(float4,float8)","result_type":"bool","right_type":"float8","symbol":"="}

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