[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 Paul Ramsey <pramsey@…>):

 In [changeset:"0b003a82991bf05022ab1b924b5f8e1e407cd043/git" 0b003a8/git]:
 {{{#!CommitTicketReference repository="git"
 revision="0b003a82991bf05022ab1b924b5f8e1e407cd043"
 Remove use of pqsignal in favour of checking pgsql interrupt
 variables in order to respect user interrupt request.
 References #5841
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5841#comment:5>
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