[postgis-users] postgis function

[Valtz Com]

Hi all,
can someone give me a hint for one problem...

i have a linestring. it has start point coordinates, end point coordinates 
and of course length and each point has (x,y) coordinates pair. these x,y 
coordinates are stored in a separete table for every start and end point 
respectively . let suppose that length of linestring is 500 meter. i am at 
300 meter away from end point of line string. i want to get my position in 
(x,y) coordinates on this line string. any hint......

thx
ValtZ

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