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

Wiki / 运算符

=(int8,int4)

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
int8
Right operand
int4
Result type
bool
Implementing function
int84eq(int8,int4)
Operator kind
Binary
Hash join candidate
yes
Merge join candidate
yes
aliases
=, =(int8,int4)
manual semantics
Source catalog description; no additional matching manual operator definition claimed
signature
=(int8,int4) → bool
source oid
416

版本定义 PG 18

equal

Declared operator-family membership

Index AMFamilyStrategyPurposeOrdering family
B-treeinteger_ops3search
Hashinteger_ops1search
BRINinteger_minmax_ops3search
BRINinteger_minmax_multi_ops3search

比较版本

完整来源事实

memberships

map[description:equal family:integer_ops family_slug:family-btree-integer_ops left_type:int8 method:btree operator:=(int8,int4) operator_slug:op-3d-int8-int4 purpose:search result_type:bool right_type:int4 sort_family: sort_family_slug: strategy:3], map[description:equal family:integer_ops family_slug:family-hash-integer_ops left_type:int8 method:hash operator:=(int8,int4) operator_slug:op-3d-int8-int4 purpose:search result_type:bool right_type:int4 sort_family: sort_family_slug: strategy:1], map[description:equal family:integer_minmax_ops family_slug:family-brin-integer_minmax_ops left_type:int8 method:brin operator:=(int8,int4) operator_slug:op-3d-int8-int4 purpose:search result_type:bool right_type:int4 sort_family: sort_family_slug: strategy:3], map[description:equal family:integer_minmax_multi_ops family_slug:family-brin-integer_minmax_multi_ops left_type:int8 method:brin operator:=(int8,int4) operator_slug:op-3d-int8-int4 purpose:search result_type:bool right_type:int4 sort_family: sort_family_slug: strategy:3]

operator

{"commutator":"=(int4,int8)","function":"int84eq(int8,int4)","hash_join":"t","kind":"b","left_type":"int8","merge_join":"t","negator":"\u003c\u003e(int8,int4)","result_type":"bool","right_type":"int4","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