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| author | Noah Misch <noah@leadboat.com> | 2024-01-08 11:39:56 -0800 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2024-01-08 11:39:56 -0800 |
| commit | d3c5f37dd543498cc7c678815d3921823beec9e9 (patch) | |
| tree | 9c430f23ec95036ded0b8bb16446b30528159c9e /src/backend/access/gist/gistscan.c | |
| parent | 0efc8318477714600567d15812dc8d15841e269e (diff) | |
| download | postgresql-d3c5f37dd543498cc7c678815d3921823beec9e9.tar.gz postgresql-d3c5f37dd543498cc7c678815d3921823beec9e9.zip | |
Make dblink interruptible, via new libpqsrv APIs.
This replaces dblink's blocking libpq calls, allowing cancellation and
allowing DROP DATABASE (of a database not involved in the query). Apart
from explicit dblink_cancel_query() calls, dblink still doesn't cancel
the remote side. The replacement for the blocking calls consists of
new, general-purpose query execution wrappers in the libpqsrv facility.
Out-of-tree extensions should adopt these. Use them in postgres_fdw,
replacing a local implementation from which the libpqsrv implementation
derives. This is a bug fix for dblink. Code inspection identified the
bug at least thirteen years ago, but user complaints have not appeared.
Hence, no back-patch for now.
Discussion: https://postgr.es/m/20231122012945.74@rfd.leadboat.com
Diffstat (limited to 'src/backend/access/gist/gistscan.c')
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