↑↓ 选择↵ 打开⌫ 切换范围完整搜索

PG.CENTER 连接 PostgreSQL 文档、百科与生态知识。由 Pigsty 维护。

Wiki / 运算符

<->(circle,point)

distance between

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。

Left operand
circle
Right operand
point
Result type
float8
Implementing function
dist_cpoint(circle,point)
Operator kind
Binary
Hash join candidate
no
Merge join candidate
no
aliases
<->, <->(circle,point)
manual semantics
Source catalog description; no additional matching manual operator definition claimed
signature
<->(circle,point) → float8
source oid
3291

版本定义 PG 18

distance between

Declared operator-family membership

Index AMFamilyStrategyPurposeOrdering family
GiSTcircle_ops15orderingfloat_ops

比较版本

完整来源事实

memberships

map[description:distance between family:circle_ops family_slug:family-gist-circle_ops left_type:circle method:gist operator:<->(circle,point) operator_slug:op-3c2d3e-circle-point purpose:ordering result_type:float8 right_type:point sort_family:float_ops sort_family_slug:family-btree-float_ops strategy:15]

operator

{"commutator":"\u003c-\u003e(point,circle)","function":"dist_cpoint(circle,point)","hash_join":"f","kind":"b","left_type":"circle","merge_join":"f","negator":"","result_type":"float8","right_type":"point","symbol":"\u003c-\u003e"}

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