↑↓ 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 / 运算符

=(record,record)

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
record
Right operand
record
Result type
bool
Implementing function
record_eq(record,record)
Operator kind
Binary
Hash join candidate
yes
Merge join candidate
yes
aliases
=, =(record,record)
manual semantics
Source catalog description; no additional matching manual operator definition claimed
signature
=(record,record) → bool
source oid
2988

版本定义 PG 18

equal

Declared operator-family membership

Index AMFamilyStrategyPurposeOrdering family
B-treerecord_ops3search
Hashrecord_ops1search

比较版本

完整来源事实

memberships

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

operator

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