[postgis-tickets] [PostGIS] #4424: hide gserialized_header_size() from external callers

[PostGIS]

#4424: hide gserialized_header_size() from external callers
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 Reporter:  pramsey  |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 3.0.0
Component:  postgis  |    Version:  trunk
 Keywords:           |
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 Right now gserialized_header_size() is called in lwgeom_hash() and it
 should be hidden further back. Implement a gserialized_hash() and bind
 lwgeom_hash() to that, so that it can all be safely abstracted when there
 are two gserialized formats

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4424>
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