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authorTom Lane <tgl@sss.pgh.pa.us>1999-02-19 06:06:39 +0000
committerTom Lane <tgl@sss.pgh.pa.us>1999-02-19 06:06:39 +0000
commite77b630cf0c1501008b3b72b5621f2951ef82b71 (patch)
tree6b25afa56af95f41ced9eab5e56f12eb58f03d7b /src/backend/optimizer/util/pathnode.c
parent612b8434e40edc299e38bd6e4d7ac07183513118 (diff)
downloadpostgresql-e77b630cf0c1501008b3b72b5621f2951ef82b71.tar.gz
postgresql-e77b630cf0c1501008b3b72b5621f2951ef82b71.zip
Allow maximum number of backends to be set at configure time
(--with-maxbackends). Add a postmaster switch (-N backends) that allows the limit to be reduced at postmaster start time. (You can't increase it, sorry to say, because there are still some fixed-size arrays.) Grab the number of semaphores indicated by min(MAXBACKENDS, -N) at postmaster startup, so that this particular form of bogus configuration is exposed immediately rather than under heavy load.
Diffstat (limited to 'src/backend/optimizer/util/pathnode.c')
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