<=(char,char)

less than or 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: char
Right operand: char
Result type: bool
Implementing function: charle(char,char)
Operator kind: Binary
Hash join candidate: no
Merge join candidate: no
aliases: <=, <=(char,char)
manual semantics: Source catalog description; no additional matching manual operator definition claimed
signature: <=(char,char) → bool
source oid: 632

版本定义 PG 18

less than or equal

Declared operator-family membership

Index AM	Family	Strategy	Purpose	Ordering family
B-tree	char_ops	2	search
BRIN	char_minmax_ops	2	search

比较版本

完整来源事实

memberships

map[description:less than or equal family:char_ops family_slug:family-btree-char_ops left_type:char method:btree operator:<=(char,char) operator_slug:op-3c3d-char-char purpose:search result_type:bool right_type:char sort_family: sort_family_slug: strategy:2], map[description:less than or equal family:char_minmax_ops family_slug:family-brin-char_minmax_ops left_type:char method:brin operator:<=(char,char) operator_slug:op-3c3d-char-char purpose:search result_type:bool right_type:char sort_family: sort_family_slug: strategy:2]

operator

{"commutator":"\u003e=(char,char)","function":"charle(char,char)","hash_join":"f","kind":"b","left_type":"char","merge_join":"f","negator":"\u003e(char,char)","result_type":"bool","right_type":"char","symbol":"\u003c="}

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