[postgis-tickets] [PostGIS] #4784: ST_CollectionExtract extracts highest coordinate dimension by default

[PostGIS]

#4784: ST_CollectionExtract extracts highest coordinate dimension by default
-------------------------+---------------------------
 Reporter:  pramsey      |      Owner:  pramsey
     Type:  enhancement  |     Status:  assigned
 Priority:  medium       |  Milestone:  PostGIS 3.1.0
Component:  postgis      |    Version:  master
 Keywords:               |
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 Add in a one-parameter mode where
 {{{
 ST_COLLECTIONEXTRACT('GEOMETRYCOLLECTION(LINESTRING, POINT))')
 }}}
 returns a multi-linestring. Basically the component of highest coordinate
 dimension is returned when the function is called without a specific
 return type.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4784>
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