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authorThomas Munro <tmunro@postgresql.org>2020-01-31 10:25:34 +1300
committerThomas Munro <tmunro@postgresql.org>2020-01-31 11:12:21 +1300
commit2c56b3ac436db2d24aa11bdd22f45becf2030607 (patch)
tree8ff6f920b41483110cc07e15dd52a7d864a3e055 /src/backend/access/gist/gistutil.c
parenta5b652f3a0110f81d2433855ab6bec136f92db83 (diff)
downloadpostgresql-2c56b3ac436db2d24aa11bdd22f45becf2030607.tar.gz
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Handle lack of DSM slots in parallel btree build.
If no DSM slots are available, a ParallelContext can still be created, but its seg pointer is NULL. Teach parallel btree build to cope with that by falling back to a regular non-parallel build, to avoid crashing with a segmentation fault. Back-patch to 11, where parallel CREATE INDEX landed. Reported-by: Nicola Contu Reviewed-by: Peter Geoghegan Discussion: https://postgr.es/m/CA%2BhUKGJgJEBnkuODBVomyK3MWFvDBbMVj%3Dgdt6DnRPU-5sQ6UQ%40mail.gmail.com
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