[postgis-tickets] [PostGIS] #3932: Enable Index Only Scan on geometry

[PostGIS]

#3932: Enable Index Only Scan on geometry
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  Reporter:  x4m      |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.4.2
 Component:  postgis  |    Version:  2.4.x
Resolution:           |   Keywords:
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Comment (by x4m):

 Replying to [comment:2 komzpa]:
 > Hello,
 >
 > gist geometry index "compresses" geometry into its bounding box. It is
 impossible to get back a valid representation, even for points, as SRID is
 lost on this conversion. Only way is to go back to the heap and read it
 from there.
 >
 > Is there some clever hack around this, or you haven't checked query
 output?

 True, I missed call to gserialized_datum_get_gidx_p() in
 gserialized_gist_compress()

 Compression is irreversible.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3932#comment:3>
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