btree/name_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 11·选择有来源记录的版本

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Object kind: Operator family
Index AM: B-tree
aliases: name_ops, btree/name_ops
classes: map[default:t family:name_ops family_slug:family-btree-name_ops input_type:name key_type:cstring method:btree name:name_ops slug:class-btree-name_ops source_oid:]
signature: btree/name_ops
source oid: 1986

版本定义 PG 11

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
<(name,name)	1	search	Family member	less than
<=(name,name)	2	search	Family member	less than or equal
=(name,name)	3	search	Family member	equal
>=(name,name)	4	search	Family member	greater than or equal
>(name,name)	5	search	Family member	greater than

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	name	name	btnamecmp(name,name)	int4
2	name	name	btnamesortsupport(internal)	void

Classes in this family

Class	Input type	Key type	Default
name_ops	name	cstring	yes

比较版本

完整来源事实

family

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

operators

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

support functions

map[family:name_ops family_slug:family-btree-name_ops function:btnamecmp(name,name) left_type:name method:btree number:1 result_type:int4 right_type:name], map[family:name_ops family_slug:family-btree-name_ops function:btnamesortsupport(internal) left_type:name method:btree number:2 result_type:void right_type:name]

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 11 · 2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0

正文语言: en · 2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0