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Update pg_upgrade for 7.3.
This commit is contained in:
Bruce Momjian
parent
7a48acbf3b
commit
c419c22414
@ -3,7 +3,7 @@
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# pg_upgrade: update a database without needing a full dump/reload cycle.
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# CAUTION: Read the manual page before trying to use this!
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# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.12 2002/02/11 15:19:33 momjian Exp $
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# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.13 2002/04/09 18:07:24 momjian Exp $
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#
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# To migrate this to newer versions of PostgreSQL:
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# 1) Update the version numbers at the top of the file
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@ -14,8 +14,8 @@
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#set -x
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# UPGRADE_VERSION is the expected old database version
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UPGRADE_VERSION="7.1"
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CUR_VERSION="7.2"
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UPGRADE_VERSION="7.2"
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CUR_VERSION="7.3"
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# Set this to "Y" to enable this program
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ENABLE="Y"
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@ -75,6 +75,7 @@ fi
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# Strip off the trailing directory name and store our data there
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# in the hope we are in the same filesystem so 'mv 'works.
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INFODIR=`dirname "$PGDATA"`/pg_upgrade_info
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SAVEDATA="$INFODIR"/data
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@ -88,14 +89,8 @@ make_dbobjoidmap()
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FROM pg_class
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WHERE relkind = 'r' OR
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relkind = 'i' OR
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relkind = 't'"
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# Don't move over 7.1 int4 sequences; use setval() file.
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# Sequence XIDs changed from 7.2beta4 to beta5; don't copy them.
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if [ "$SRC_VERSION" != "7.1" -a \
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"$SRC_VERSION" != "7.2" ]
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then QUERY="$QUERY OR relkind = 'S';";
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QUERY="$QUERY;"
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fi
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relkind = 'S' OR
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relkind = 't';"
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psql -d "$DB" -At -F' ' -c "$QUERY" |
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while read RELNAME_OID
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@ -213,28 +208,7 @@ then
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# Dump schema
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pg_dumpall -s |
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awk -F' *' '
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{
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# Modify sequences with int8 maximums if we are upgrading from 7.1.
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if ("'"$SRC_VERSION"'" == "7.1" &&
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$1 == "CREATE" &&
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$2 == "SEQUENCE" &&
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# handle OS rounding
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$9 >= 2147483646 &&
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$9 <= 2147483648)
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{
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for(i=1; i <= NF; i++)
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{
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if (i != 9)
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printf "%s ", $i;
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else
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printf "%s ", "9223372036854775807";
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}
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print "";
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}
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else print $0;
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}' > "$INFODIR"/schema
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pg_dumpall -s > "$INFODIR"/schema
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if [ $? -ne 0 ]
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then echo "Can not dump schema. Exiting." 1>&2
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exit 1
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@ -244,32 +218,6 @@ then
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make_dboidmap > "$INFODIR"/dboidmap || exit "$?"
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make_dbobjoidmap > "$INFODIR"/dbobjoidmap || exit "$?"
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# Generate setval() script for 7.1 because it has int4 sequences
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# Sequence XIDs changed from 7.2beta4 to beta5 so we have to recreate them too.
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# Not required for 7.2beta5 and later, but it can't hurt.
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if [ "$SRC_VERSION" = "7.1" -o \
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"$SRC_VERSION" = "7.2" ]
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then
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psql -d template1 -At -c "SELECT datname FROM pg_database" |
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grep -v '^template0$' |
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while read DB
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do
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# We use awk as a portable way to output a backslash
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awk 'BEGIN {print "\\connect '"$DB"'"}'
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psql -d "$DB" -At -c "
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SELECT relname
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FROM pg_class
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WHERE relkind = 'S';" |
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while read SEQUENCE
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do
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VALUE=`psql -d "$DB" -At -c "SELECT last_value
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FROM \"$SEQUENCE\";"`
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echo "SELECT setval ('$SEQUENCE', $VALUE, true);"
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done
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done > "$INFODIR"/setval
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else rm -f "$INFODIR"/setval
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fi
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# Vacuum all databases to remove exipired rows.
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# We will lose our transaction log file during the upgrade so we
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# have to do this.
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@ -375,14 +323,7 @@ then echo "Old version of pg_resetxlog found in path." 1>&2
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exit 1
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fi
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# If the XID is > 2 billion, 7.1 database will have non-frozen XID's in
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# low numbers, and 7.2 will think they are in the future --- bad.
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SRC_XID=`pg_resetxlog -n "$SAVEDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
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if [ "$SRC_VERSION" = "7.1" -a "$SRC_XID" -gt 2000000000 ]
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then echo "XID too high for $BASENAME. Exiting." 1>&2
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exit 1
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fi
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DST_XID=`pg_resetxlog -n "$PGDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
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# compare locales to make sure they match
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@ -418,16 +359,6 @@ fi
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echo "Input script completed, fixing row commit statuses..."
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# XXX do we still need this?
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# Now vacuum each result database because our movement of transaction log
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# causes some committed transactions to appear as non-committed
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vacuumdb -a
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if [ $? -ne 0 ]
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then echo "There were errors during VACUUM. Exiting." 1>&2
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exit 1
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fi
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# Generate mappings for new database
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make_dboidmap > /tmp/$$.dboidmap || exit "$?"
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make_dbobjoidmap > /tmp/$$.dbobjoidmap || exit "$?"
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@ -508,6 +439,11 @@ fi
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rm -r "$PGDATA"/pg_xlog
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mv -f "$SAVEDATA"/pg_xlog "$PGDATA"
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# Move over old clog
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rm -r "$PGDATA"/pg_clog
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mv -f "$SAVEDATA"/pg_clog "$PGDATA"
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# Set last log file id and segment from old database
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LOG_ID=`pg_resetxlog -n "$SAVEDATA" | grep "Current log file id:" |
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@ -539,16 +475,14 @@ then echo "Unable to restart database server. Exiting." 1>&2
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exit 1
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fi
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# Set sequence values for 7.1-version sequences, which were int4.
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# Now that we have moved the WAL/transaction log files, vacuum again to
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# mark install rows with fixed transaction ids to prevent problems on xid
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# wraparound.
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if [ "$SRC_VERSION" = "7.1" -o \
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"$SRC_VERSION" = "7.2" ]
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then echo "Set sequence values..."
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psql -d template1 -At < "$INFODIR"/setval
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if [ $? -ne 0 ]
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then echo "There were errors during int4 sequence restoration. Exiting." 1>&2
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exit 1
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fi
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vacuumdb -a
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if [ $? -ne 0 ]
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then echo "There were errors during VACUUM. Exiting." 1>&2
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exit 1
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fi
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echo
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