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When specified, this option allows VACUUM to skip the work on a relation if there is a conflicting lock on it when trying to open it at the beginning of its processing. Similarly to autovacuum, this comes with a couple of limitations while the relation is processed which can cause the process to still block: - when opening the relation indexes. - when acquiring row samples for table inheritance trees, partition trees or certain types of foreign tables, and that a lock is taken on some leaves of such trees. Author: Nathan Bossart Reviewed-by: Michael Paquier, Andres Freund, Masahiko Sawada Discussion: https://postgr.es/m/9EF7EBE4-720D-4CF1-9D0E-4403D7E92990@amazon.com Discussion: https://postgr.es/m/20171201160907.27110.74730@wrigleys.postgresql.org |
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data | ||
expected | ||
input | ||
output | ||
sql | ||
.gitignore | ||
GNUmakefile | ||
Makefile | ||
parallel_schedule | ||
pg_regress_main.c | ||
pg_regress.c | ||
pg_regress.h | ||
README | ||
regress.c | ||
regressplans.sh | ||
resultmap | ||
serial_schedule | ||
standby_schedule |
Documentation concerning how to run these regression tests and interpret the results can be found in the PostgreSQL manual, in the chapter "Regression Tests".