btree/abstime_ops (class)

B-tree operator class for abstime; member of abstime_ops.

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Object kind: Operator class
Index AM: B-tree
Input type: abstime
Stored key type: Same as input type (catalog zero)
Default class: yes
aliases: abstime_ops, btree/abstime_ops
classes: map[default:t family:abstime_ops family_slug:family-btree-abstime_ops input_type:abstime key_type:none method:btree name:abstime_ops slug:class-btree-abstime_ops source_oid:]
signature: btree/abstime_ops
source oid: 未知
support functions: map[family:abstime_ops family_slug:family-btree-abstime_ops function:btabstimecmp(abstime,abstime) left_type:abstime method:btree number:1 result_type:int4 right_type:abstime]

版本定义 PG 11

B-tree operator class for abstime; member of abstime_ops.

Family operator strategies

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

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	abstime	abstime	btabstimecmp(abstime,abstime)	int4

Classes in this family

Class	Input type	Key type	Default
abstime_ops	abstime	Same as input type	yes

比较版本

完整来源事实

class

{"default":"t","family":"abstime_ops","input_type":"abstime","key_type":"none","method":"btree","name":"abstime_ops"}

operators

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

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