Nearest point on a planet_osm_roads

I have a query that give me the nearest roads to a point

SELECT osm_id, ref, name, way, ST_AsText(ST_Transform(way, 4326)), *
FROM planet_osm_roads
where 
ST_DWithin(ST_Transform(ST_SetSrid(ST_Point(-1.28779, 51.78976), 4326), 3857), way, 20)
ORDER BY way <-> ST_Transform(ST_SetSrid(ST_Point(-1.28779, 51.78976), 4326), 3857) LIMIT 5;

Now I want in the same query to get for each road the nearest point(node) for my original point (-1.28779, 51.78976) I know how to do it in separate queries, but for less DB access I want it in the same query.

Tn;x for any help

psql planet_osm_roads postgis

asked 05 Dec '18, 08:48

altopalo
53●6●9●13
accept rate: 0%

Be the first one to answer this question!

toggle preview

community wiki:

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

*italic* or _italic_
**bold** or __bold__
link:[text](http://url.com/ "title")
image?![alt text](/path/img.jpg "title")
numbered list: 1. Foo 2. Bar
to add a line break simply add two spaces to where you would like the new line to be.
basic HTML tags are also supported

learn more about Markdown

Question tags:

postgis ×123
psql ×2
planet_osm_roads ×1

question asked: 05 Dec '18, 08:48

question was seen: 454 times

last updated: 05 Dec '18, 08:48

Nearest point on a planet_osm_roads

Follow this question

Related questions