[PostGIS] #5841: Pg18 changes pqsignal() return

[PostGIS]

#5841: Pg18 changes pqsignal() return
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  Reporter:  pramsey  |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.6.0
 Component:  postgis  |    Version:  master
Resolution:           |   Keywords:
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Comment (by pramsey):

 See #5137 for information on former use of executorHook
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5841#comment:6>
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