[postgis-tickets] [PostGIS] #4134: MVT test failure in trunk

[PostGIS]

#4134: MVT test failure in trunk
---------------------+---------------------------
 Reporter:  dbaston  |      Owner:  pramsey
     Type:  defect   |     Status:  assigned
 Priority:  blocker  |  Milestone:  PostGIS 2.5.0
Component:  postgis  |    Version:  trunk
 Keywords:           |
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 An MVT test failure is caused by r16671, as discussed in
 https://github.com/postgis/postgis/pull/268#issuecomment-407780730

 One solution is described by Raul in the linked discussion. Another option
 is the following:

 1) Update `lwgeom_subdivide` to use `lwgeom_intersection` instead of
 `lwgeom_clip_by_rect`.

 2) Revert `lwgeom_clip_by_rect` to its 2.4 state (changes are based on a
 bug report that cannot be confirmed)

 This should make MVT clipping work as it did in 2.4. I verified that it
 works locally but it requires rewriting the MVT tests to use `ST_Equals`
 instead of text comparison.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4134>
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