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Wiki / Operators / Geometric

<->(line,lseg)

distance between

Reading PostgreSQL 18.6.

Description

distance between

Left operand
line
Right operand
lseg
Result type
float8
Implementing function
dist_ls(line,lseg)
Operator kind
Binary
Hash join candidate
no
Merge join candidate
no

Usage

<->(line,lseg) → float8

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 12 → 13: added.

--- PostgreSQL 12
+++ PostgreSQL 13
@@ -1 +1,15 @@
-Not recorded in this version
+{
+  "memberships": [],
+  "operator": {
+    "commutator": "<->(lseg,line)",
+    "function": "dist_ls(line,lseg)",
+    "hash_join": "f",
+    "kind": "b",
+    "left_type": "line",
+    "merge_join": "f",
+    "negator": "",
+    "result_type": "float8",
+    "right_type": "lseg",
+    "symbol": "<->"
+  }
+}

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 13 through 20; the first sample is not necessarily its introduction.