btree/xid8_ops (class)

B-tree operator class for xid8; member of xid8_ops.

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。

Object kind: Operator class
Index AM: B-tree
Input type: xid8
Stored key type: Same as input type (catalog zero)
Default class: yes
aliases: xid8_ops, btree/xid8_ops
classes: map[default:t family:xid8_ops family_slug:family-btree-xid8_ops input_type:xid8 key_type:none method:btree name:xid8_ops slug:class-btree-xid8_ops source_oid:]
signature: btree/xid8_ops
source oid: 未知

版本定义 PG 18

B-tree operator class for xid8; member of xid8_ops.

Family operator strategies

Operator overload	Strategy	Purpose	Membership scope	Source description
<(xid8,xid8)	1	search	Class input pair	less than
<=(xid8,xid8)	2	search	Class input pair	less than or equal
=(xid8,xid8)	3	search	Class input pair	equal
>=(xid8,xid8)	4	search	Class input pair	greater than or equal
>(xid8,xid8)	5	search	Class input pair	greater than

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	xid8	xid8	xid8cmp(xid8,xid8)	int4
4	xid8	xid8	btequalimage(oid)	bool

Classes in this family

Class	Input type	Key type	Default
xid8_ops	xid8	Same as input type	yes

比较版本

完整来源事实

class

{"default":"t","family":"xid8_ops","input_type":"xid8","key_type":"none","method":"btree","name":"xid8_ops"}

operators

map[description:less than family:xid8_ops family_slug:family-btree-xid8_ops left_type:xid8 method:btree operator:<(xid8,xid8) operator_slug:op-3c-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:1], map[description:less than or equal family:xid8_ops family_slug:family-btree-xid8_ops left_type:xid8 method:btree operator:<=(xid8,xid8) operator_slug:op-3c3d-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:2], map[description:equal family:xid8_ops family_slug:family-btree-xid8_ops left_type:xid8 method:btree operator:=(xid8,xid8) operator_slug:op-3d-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:3], map[description:greater than or equal family:xid8_ops family_slug:family-btree-xid8_ops left_type:xid8 method:btree operator:>=(xid8,xid8) operator_slug:op-3e3d-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:4], map[description:greater than family:xid8_ops family_slug:family-btree-xid8_ops left_type:xid8 method:btree operator:>(xid8,xid8) operator_slug:op-3e-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:5]

support functions

map[family:xid8_ops family_slug:family-btree-xid8_ops function:xid8cmp(xid8,xid8) left_type:xid8 method:btree number:1 result_type:int4 right_type:xid8], map[family:xid8_ops family_slug:family-btree-xid8_ops function:btequalimage(oid) left_type:xid8 method:btree number:4 result_type:bool right_type:xid8]

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