55 lines
1.4 KiB
Bash
Executable File
55 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# unused_oids
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#
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# $PostgreSQL: pgsql/src/include/catalog/unused_oids,v 1.7 2005/04/14 01:38:21 tgl Exp $
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#
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# finds blocks of manually-assignable oids that have not already been
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# claimed by post_hackers. primarily useful for finding available
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# oids for new internal functions. the numbers printed are inclusive
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# ranges of unused oids.
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#
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# before using a large empty block, make sure you aren't about
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# to take over what was intended as expansion space for something
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# else.
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#
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# run this script in src/include/catalog.
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#
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AWK="awk"
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# Get FirstBootstrapObjectId from access/transam.h
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FIRSTOBJECTID=`grep '#define[ ]*FirstBootstrapObjectId' ../access/transam.h | $AWK '{ print $3 }'`
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export FIRSTOBJECTID
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# this part (down to the uniq step) should match the unused_oids script
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# note: we exclude BKI_BOOTSTRAP relations since they are expected to have
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# matching DATA lines in pg_class.h
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cat pg_*.h indexing.h | \
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egrep -v -e '^CATALOG\(.*BKI_BOOTSTRAP' | \
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sed -n -e 's/^DATA(insert *OID *= *\([0-9][0-9]*\).*$/\1/p' \
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-e 's/^CATALOG([^,]*, *\([0-9][0-9]*\).*$/\1/p' \
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-e 's/^DECLARE_INDEX([^,]*, *\([0-9][0-9]*\).*$/\1/p' \
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-e 's/^DECLARE_UNIQUE_INDEX([^,]*, *\([0-9][0-9]*\).*$/\1/p' | \
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sort -n | \
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uniq | \
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$AWK '
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BEGIN {
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last = 0;
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}
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/^[0-9]/ {
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if ($1 > last + 1) {
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if ($1 > last + 2) {
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print last + 1, "-", $1 - 1;
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} else {
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print last + 1;
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}
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}
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last = $1;
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}
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END {
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print last + 1, "-", ENVIRON["FIRSTOBJECTID"]-1;
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}'
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