45 lines
2 KiB
Plaintext
45 lines
2 KiB
Plaintext
pg_upgrade upgrades a PostgreSQL cluster to a different major version.
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Usage:
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pg_upgrade [OPTION]...
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Options:
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-b, --old-bindir=BINDIR old cluster executable directory
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-B, --new-bindir=BINDIR new cluster executable directory
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-c, --check check clusters only, don't change any data
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-d, --old-datadir=DATADIR old cluster data directory
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-D, --new-datadir=DATADIR new cluster data directory
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-j, --jobs=NUM number of simultaneous processes or threads to use
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-k, --link link instead of copying files to new cluster
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-o, --old-options=OPTIONS old cluster options to pass to the server
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-O, --new-options=OPTIONS new cluster options to pass to the server
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-p, --old-port=PORT old cluster port number (default 50432)
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-P, --new-port=PORT new cluster port number (default 50432)
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-r, --retain retain SQL and log files after success
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-U, --username=NAME cluster superuser (default "postgres")
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-v, --verbose enable verbose internal logging
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-V, --version display version information, then exit
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-?, --help show this help, then exit
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Before running pg_upgrade you must:
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create a new database cluster (using the new version of initdb)
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shutdown the postmaster servicing the old cluster
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shutdown the postmaster servicing the new cluster
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When you run pg_upgrade, you must provide the following information:
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the data directory for the old cluster (-d DATADIR)
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the data directory for the new cluster (-D DATADIR)
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the "bin" directory for the old version (-b BINDIR)
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the "bin" directory for the new version (-B BINDIR)
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For example:
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pg_upgrade -d oldCluster/data -D newCluster/data -b oldCluster/bin -B newCluster/bin
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or
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C:\> set PGDATAOLD=oldCluster/data
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C:\> set PGDATANEW=newCluster/data
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C:\> set PGBINOLD=oldCluster/bin
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C:\> set PGBINNEW=newCluster/bin
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C:\> pg_upgrade
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Report bugs to <pgsql-bugs@postgresql.org>.
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