=(timestamp,timestamp)

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: timestamp
Right operand: timestamp
Result type: bool
Implementing function: timestamp_eq(timestamp,timestamp)
Operator kind: Binary
Hash join candidate: yes
Merge join candidate: yes
aliases: =, =(timestamp,timestamp)
manual semantics: Source catalog description; no additional matching manual operator definition claimed
signature: =(timestamp,timestamp) → bool
source oid: 2060

版本定义 PG 18

equal

Declared operator-family membership

Index AM	Family	Strategy	Purpose
B-tree	datetime_ops	3	search
Hash	timestamp_ops	1	search
BRIN	datetime_minmax_ops	3	search
BRIN	datetime_minmax_multi_ops	3	search
BRIN	datetime_bloom_ops	1	search

比较版本

完整来源事实

memberships

map[description:equal family:datetime_ops family_slug:family-btree-datetime_ops left_type:timestamp method:btree operator:=(timestamp,timestamp) operator_slug:op-3d-timestamp-timestamp purpose:search result_type:bool right_type:timestamp sort_family: sort_family_slug: strategy:3], map[description:equal family:timestamp_ops family_slug:family-hash-timestamp_ops left_type:timestamp method:hash operator:=(timestamp,timestamp) operator_slug:op-3d-timestamp-timestamp purpose:search result_type:bool right_type:timestamp sort_family: sort_family_slug: strategy:1], map[description:equal family:datetime_minmax_ops family_slug:family-brin-datetime_minmax_ops left_type:timestamp method:brin operator:=(timestamp,timestamp) operator_slug:op-3d-timestamp-timestamp purpose:search result_type:bool right_type:timestamp sort_family: sort_family_slug: strategy:3], map[description:equal family:datetime_minmax_multi_ops family_slug:family-brin-datetime_minmax_multi_ops left_type:timestamp method:brin operator:=(timestamp,timestamp) operator_slug:op-3d-timestamp-timestamp purpose:search result_type:bool right_type:timestamp sort_family: sort_family_slug: strategy:3], map[description:equal family:datetime_bloom_ops family_slug:family-brin-datetime_bloom_ops left_type:timestamp method:brin operator:=(timestamp,timestamp) operator_slug:op-3d-timestamp-timestamp purpose:search result_type:bool right_type:timestamp sort_family: sort_family_slug: strategy:1]

operator

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