=(text,text)

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: text
Right operand: text
Result type: bool
Implementing function: texteq(text,text)
Operator kind: Binary
Hash join candidate: yes
Merge join candidate: yes
aliases: =, =(text,text)
manual semantics: Source catalog description; no additional matching manual operator definition claimed
signature: =(text,text) → bool
source oid: 98

版本定义 PG 18

equal

Declared operator-family membership

Index AM	Family	Strategy	Purpose
B-tree	text_ops	3	search
B-tree	text_pattern_ops	3	search
Hash	text_ops	1	search
Hash	text_pattern_ops	1	search
SP-GiST	text_ops	3	search
BRIN	text_minmax_ops	3	search
BRIN	text_bloom_ops	1	search

比较版本

完整来源事实

memberships

map[description:equal family:text_ops family_slug:family-btree-text_ops left_type:text method:btree operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:3], map[description:equal family:text_pattern_ops family_slug:family-btree-text_pattern_ops left_type:text method:btree operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:3], map[description:equal family:text_ops family_slug:family-hash-text_ops left_type:text method:hash operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:1], map[description:equal family:text_pattern_ops family_slug:family-hash-text_pattern_ops left_type:text method:hash operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:1], map[description:equal family:text_ops family_slug:family-spgist-text_ops left_type:text method:spgist operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:3], map[description:equal family:text_minmax_ops family_slug:family-brin-text_minmax_ops left_type:text method:brin operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:3], map[description:equal family:text_bloom_ops family_slug:family-brin-text_bloom_ops left_type:text method:brin operator:=(text,text) operator_slug:op-3d-text-text purpose:search result_type:bool right_type:text sort_family: sort_family_slug: strategy:1]

operator

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