[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:"1f7c3150b47ac75059ede6ee4cc8cec30bf5f5ea/git"
 1f7c3150/git]:
 {{{#!CommitTicketReference repository="git"
 revision="1f7c3150b47ac75059ede6ee4cc8cec30bf5f5ea"
 Rework interrupt handling and remove signal handling
 from PostGIS. PostGIS does not need to capture signals,
 it just needs to look at the state flags exposed by
 PgSQL (QueryCancelPending || ProcDiePending) from
 time to time and interrupt itself if they are set.
 References #5841
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5841#comment:2>
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