[postgis-tickets] [PostGIS] #5267: [Enhacement] Extrapolate Linestring rate and distance support

[PostGIS]

#5267: [Enhacement] Extrapolate Linestring rate and distance support
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  Reporter:  latot        |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.4.0
 Component:  postgis      |    Version:  3.3.x
Resolution:               |   Keywords:
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Comment (by mdavis):

 Replying to [comment:3 latot]:
 > With the actual params, ST_LineSubstring can pick the rate, the constant
 is useful too, but I don't know if put that inside the function too.
 >
 > The constant part is pretty useful too, specially if you need extend a
 linestring over some extent, will small linestrings the rate only does the
 calc more complex, while a constant do it simpler.

 Are you suggesting adding an option to specify that the `start` and `end`
 parameters are absolute lengths, rather than a fraction of the line
 length?

 This could be done with an option flag, or with a new function (say
 `ST_LineSubstringLen`).
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5267#comment:6>
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