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btree/text_ops (family)

B-tree operator family containing 3 classes, 20 operator strategies and 8 support functions in this source build.

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 family
Index AM
B-tree
aliases
text_ops, btree/text_ops
signature
btree/text_ops
source oid
1994

版本定义 PG 18

B-tree operator family containing 3 classes, 20 operator strategies and 8 support functions in this source build.

Family operator strategies

Operator overloadStrategyPurposeOrdering familyMembership scopeSource description
<(text,text)1searchFamily memberless than
<=(text,text)2searchFamily memberless than or equal
=(text,text)3searchFamily memberequal
>=(text,text)4searchFamily membergreater than or equal
>(text,text)5searchFamily membergreater than
<(name,name)1searchFamily memberless than
<=(name,name)2searchFamily memberless than or equal
=(name,name)3searchFamily memberequal
>=(name,name)4searchFamily membergreater than or equal
>(name,name)5searchFamily membergreater than
<(name,text)1searchFamily memberless than
<=(name,text)2searchFamily memberless than or equal
=(name,text)3searchFamily memberequal
>=(name,text)4searchFamily membergreater than or equal
>(name,text)5searchFamily membergreater than
<(text,name)1searchFamily memberless than
<=(text,name)2searchFamily memberless than or equal
=(text,name)3searchFamily memberequal
>=(text,name)4searchFamily membergreater than or equal
>(text,name)5searchFamily membergreater than

Family support functions

Support numberLeft typeRight typeFunction signatureResult type
1texttextbttextcmp(text,text)int4
2texttextbttextsortsupport(internal)void
4texttextbtvarstrequalimage(oid)bool
1namenamebtnamecmp(name,name)int4
2namenamebtnamesortsupport(internal)void
4namenamebtvarstrequalimage(oid)bool
1nametextbtnametextcmp(name,text)int4
1textnamebttextnamecmp(text,name)int4

Classes in this family

ClassInput typeKey typeDefault
name_opsnamecstringyes
text_opstextSame as input typeyes
varchar_opstextSame as input typeno

比较版本

完整来源事实

classes

map[default:t family:text_ops family_slug:family-btree-text_ops input_type:name key_type:cstring method:btree name:name_ops slug:class-btree-name_ops source_oid:], map[default:t family:text_ops family_slug:family-btree-text_ops input_type:text key_type:none method:btree name:text_ops slug:class-btree-text_ops source_oid:3126], map[default:f family:text_ops family_slug:family-btree-text_ops input_type:text key_type:none method:btree name:varchar_ops slug:class-btree-varchar_ops source_oid:]

family

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

operators

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

support functions

map[family:text_ops family_slug:family-btree-text_ops function:bttextcmp(text,text) left_type:text method:btree number:1 result_type:int4 right_type:text], map[family:text_ops family_slug:family-btree-text_ops function:bttextsortsupport(internal) left_type:text method:btree number:2 result_type:void right_type:text], map[family:text_ops family_slug:family-btree-text_ops function:btvarstrequalimage(oid) left_type:text method:btree number:4 result_type:bool right_type:text], map[family:text_ops family_slug:family-btree-text_ops function:btnamecmp(name,name) left_type:name method:btree number:1 result_type:int4 right_type:name], map[family:text_ops family_slug:family-btree-text_ops function:btnamesortsupport(internal) left_type:name method:btree number:2 result_type:void right_type:name], map[family:text_ops family_slug:family-btree-text_ops function:btvarstrequalimage(oid) left_type:name method:btree number:4 result_type:bool right_type:name], map[family:text_ops family_slug:family-btree-text_ops function:btnametextcmp(name,text) left_type:name method:btree number:1 result_type:int4 right_type:text], map[family:text_ops family_slug:family-btree-text_ops function:bttextnamecmp(text,name) left_type:text method:btree number:1 result_type:int4 right_type:name]

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