[postgis-tickets] [PostGIS] #4523: Upgrade 2.1.9 to 3.0.0rc1 - can not drop function st_union(geometry) because other objects depend on it

[PostGIS]

#4523: Upgrade 2.1.9 to 3.0.0rc1 - can not drop function st_union(geometry)
because other objects depend on it
-----------------------------------+---------------------------
 Reporter:  robe                   |      Owner:  strk
     Type:  defect                 |     Status:  new
 Priority:  medium                 |  Milestone:  PostGIS 3.0.0
Component:  build/upgrade/install  |    Version:  trunk
 Keywords:                         |
-----------------------------------+---------------------------
 I'm not sure this test is fair -- dronie is showing this error going from
 2.1.9 to 3.0.0rc1

 {{{
 Died at ../run_test.pl line 1588.
 failed (Error encountered altering EXTENSION POSTGIS:
 /tmp/pgis_reg/regress_log)
 -----------------------------------------------------------------------------
 CREATE EXTENSION
 WARNING: unpackaging raster
 WARNING: PostGIS Raster functionality has been unpackaged
 HINT: type `SELECT postgis_extensions_upgrade(); to finish the upgrade.
 After upgrading, if you want to drop raster, run: DROP EXTENSION
 postgis_raster;
 ERROR: cannot drop function st_union(geometry) because other objects
 depend on it
 DETAIL: view upgrade_view_test depends on function st_union(geometry)
 HINT: Use DROP ... CASCADE to drop the dependent objects too.
 CONTEXT: SQL statement "DROP AGGREGATE IF EXISTS ST_Union (geometry)"
 PL/pgSQL function inline_code_block line 15 at EXECUTE
 -----------------------------------------------------------------------------
 make[1]: *** [check] Error 1
 make[1]: Leaving directory `/drone/src/regress/core'
 make: *** [check-regress] Error 2
 make: Leaving directory `/drone/src/regress'
 FAIL: upgrade 2.1.9--3.0.0rc1
 }}}

 Can we not test 2.1.9 as that's long deprecated already and besides we
 know that ST_Union changed.  It's changed I think 3 times since 2.1.9 so
 this is an expected failure

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4523>
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