postgresql - how do i remove overlapping lines in postgis -


I have a typical database with polygons of one lakh, which is in the form of land parcel and I call these polygons on lines I want to split and then remove the lines that each other overlap these lines will be used to fully mappal / and or to the zoosverver, because at this time each parcel boundary is sung twice.

I propose to split the parcel polygon in a new table ("border_line") and then search and delete overlapping lines. How would I go about posting these overlapping lines in postgil?

Use ST_Equals:

Your SQL statement might appear something Will give: 

  SELECT y.id, mytable y from z.id, mytable z, where ST_Equals (y.the_geom, z.the_geom)

query Will take forever to run, but hopefully you only have to do this once after running it, get results and carefully delete duplicate IDs.

Note that it will not be able to get rid of the limitations that do not overlap properly.


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