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Commitbfecc6a

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Jan WieckJan Wieck
Jan Wieck
authored and
Jan Wieck
committed
Added pg_dumpaccounts utility script in contrib.
Derived from pg_dumpall it just dumps the pg_shadow andpg_group contents.Jan
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‎contrib/pg_dumpaccounts/Makefile

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#-------------------------------------------------------------------------
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#
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# Makefile --
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#
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# Makefile for contrib pg_dumpaccounts.
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#
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#-------------------------------------------------------------------------
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PGDIR = ../..
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SRCDIR =$(PGDIR)/src
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include$(SRCDIR)/Makefile.global
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all:
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install:
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$(INSTALL)$(INSTL_EXE_OPTS) pg_dumpaccounts$(BINDIR)/pg_dumpaccounts
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clean:
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distclean:clean

‎contrib/pg_dumpaccounts/README

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pg_dumpaccounts
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This is a little utility script derived from pg_dumpall. It just
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dumps the global pg_shadow and pg_group as pg_dumpall does without
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dumping any of the databases. This is useful for installations
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that have many databases with different backup schedules, where
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pg_dumpall will never be run and thus, the users and groups will
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never be backed up.
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#!/bin/sh
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#
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# pg_dumpaccounts
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# dumps the pg_shadow and pg_group tables, which belong to the
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# whole installation rather than any one individual database.
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#
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# $Header: /cvsroot/pgsql/contrib/pg_dumpaccounts/Attic/pg_dumpaccounts,v 1.1.2.1 2000/11/02 18:09:49 wieck Exp $
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#
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# to adapt to System V vs. BSD 'echo'
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ifecho'\\'| grep'\\\\'>/dev/null2>&1
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then
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BS='\'# BSD
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else
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BS='\\'# System V
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fi
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#
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# Dump everyone but the postgres user
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# initdb creates him
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#
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# get the postgres user id
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#
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POSTGRES_SUPER_USER_ID="`echo\" \
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selectdatdba \
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from pg_database \
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where datname ='template1';\"| \
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psql -A -q -t template1`"
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echo"${BS}connect template1"
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#
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# delete all users in case they run this twice
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#
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# we don't use POSTGRES_SUPER_USER_ID because the postgres super user id
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# could be different on the two installations
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#
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echo"select datdba into table tmp_pg_shadow \
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from pg_database where datname ='template1';"
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echo"delete from pg_shadow where usesysid<> tmp_pg_shadow.datdba;"
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echo"drop table tmp_pg_shadow;"
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#
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# load all the non-postgres users
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# XXX this breaks badly if the layout of pg_shadow ever changes.
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# It'd be better to convert the data into CREATE USER commands.
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#
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echo"copy pg_shadow from stdin;"
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psql -q template1 <<END
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select pg_shadow.*
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into table tmp_pg_shadow
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from pg_shadow
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where usesysid <>$POSTGRES_SUPER_USER_ID;
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copy tmp_pg_shadow to stdout;
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drop table tmp_pg_shadow;
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END
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echo"${BS}."
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#
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# copy the pg_group table too
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# XXX this breaks badly if the layout of pg_group ever changes.
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# It'd be better to convert the data into CREATE GROUP commands.
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#
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echo"delete from pg_group;"
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echo"copy pg_group from stdin;"
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psql -q template1 <<END
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copy pg_group to stdout;
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END
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echo"${BS}."
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exit 0

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