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Wiki / 运算符

=(numeric,numeric)

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
numeric
Right operand
numeric
Result type
bool
Implementing function
numeric_eq(numeric,numeric)
Operator kind
Binary
Hash join candidate
yes
Merge join candidate
yes
aliases
=, =(numeric,numeric)
manual semantics
Source catalog description; no additional matching manual operator definition claimed
signature
=(numeric,numeric) → bool
source oid
1752

版本定义 PG 18

equal

Declared operator-family membership

Index AMFamilyStrategyPurposeOrdering family
B-treenumeric_ops3search
Hashnumeric_ops1search
BRINnumeric_minmax_ops3search
BRINnumeric_minmax_multi_ops3search
BRINnumeric_bloom_ops1search

比较版本

完整来源事实

memberships

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

operator

{"commutator":"=(numeric,numeric)","function":"numeric_eq(numeric,numeric)","hash_join":"t","kind":"b","left_type":"numeric","merge_join":"t","negator":"\u003c\u003e(numeric,numeric)","result_type":"bool","right_type":"numeric","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