btree/enum_ops (family)

B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.

当前阅读 PG 18·选择有来源记录的版本

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Object kind: Operator family
Index AM: B-tree
aliases: enum_ops, btree/enum_ops
classes: map[default:t family:enum_ops family_slug:family-btree-enum_ops input_type:anyenum key_type:none method:btree name:enum_ops slug:class-btree-enum_ops source_oid:]
signature: btree/enum_ops
source oid: 3522

版本定义 PG 18

B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.

Family operator strategies

Operator overload	Strategy	Purpose	Membership scope	Source description
<(anyenum,anyenum)	1	search	Family member	less than
<=(anyenum,anyenum)	2	search	Family member	less than or equal
=(anyenum,anyenum)	3	search	Family member	equal
>=(anyenum,anyenum)	4	search	Family member	greater than or equal
>(anyenum,anyenum)	5	search	Family member	greater than

Family support functions

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

Classes in this family

Class	Input type	Key type	Default
enum_ops	anyenum	Same as input type	yes

比较版本

完整来源事实

family

{"method":"btree","name":"enum_ops"}

operators

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

support functions

map[family:enum_ops family_slug:family-btree-enum_ops function:enum_cmp(anyenum,anyenum) left_type:anyenum method:btree number:1 result_type:int4 right_type:anyenum], map[family:enum_ops family_slug:family-btree-enum_ops function:btequalimage(oid) left_type:anyenum method:btree number:4 result_type:bool right_type:anyenum]

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