?-|(line,line)

perpendicular

Reading PostgreSQL 18.6.

Description

perpendicular

Left operand: line
Right operand: line
Result type: bool
Implementing function: line_perp(line,line)
Operator kind: Binary
Hash join candidate: no
Merge join candidate: no

Usage

?-|(line,line) → bool

English manual definition

Are lines perpendicular?

lseg '[(0,0),(0,1)]' ?-| lseg '[(0,0),(1,0)]' → t

Catalog interpretation

The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.

Related entries

Documentation and source

Source build

Version: 18.6
Build: https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
Source fingerprint: 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Compare versions

PostgreSQL 17 → 18: unchanged.

Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.

Related entries

Export JSON · Back to Operators · Recorded in PostgreSQL 10 through 20; the first sample is not necessarily its introduction.