btree/bytea_ops (class)

B-tree operator class for bytea; member of bytea_ops.

当前阅读 PG 18·选择有来源记录的版本

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

版本定义 PG 18

B-tree operator class for bytea; member of bytea_ops.

Family operator strategies

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

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	bytea	bytea	byteacmp(bytea,bytea)	int4
2	bytea	bytea	bytea_sortsupport(internal)	void
4	bytea	bytea	btequalimage(oid)	bool

Classes in this family

Class	Input type	Key type	Default
bytea_ops	bytea	Same as input type	yes

比较版本

完整来源事实

class

{"default":"t","family":"bytea_ops","input_type":"bytea","key_type":"none","method":"btree","name":"bytea_ops"}

operators

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

support functions

map[family:bytea_ops family_slug:family-btree-bytea_ops function:byteacmp(bytea,bytea) left_type:bytea method:btree number:1 result_type:int4 right_type:bytea], map[family:bytea_ops family_slug:family-btree-bytea_ops function:bytea_sortsupport(internal) left_type:bytea method:btree number:2 result_type:void right_type:bytea], map[family:bytea_ops family_slug:family-btree-bytea_ops function:btequalimage(oid) left_type:bytea method:btree number:4 result_type:bool right_type:bytea]

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