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9e4798ea0d
oids
42 lines
1.1 KiB
Bash
Executable File
42 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# unused_oids
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#
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# $Header: /cvsroot/pgsql/src/include/catalog/unused_oids,v 1.1 1997/03/15 06:03:08 scrappy Exp $
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#
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# finds blocks of oids that have not already been claimed by
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# post_hackers for internal purposes. primarily useful for
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# finding valid oids for new internal function oids. the numbers
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# printed are inclusive ranges of valid (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. also, before using a number, do a "grepsrc" to make sure
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# that someone isn't using a literal numeric constant somewhere..
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#
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# non-berkeley post_hackers should probably not try to use oids
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# less than the highest one that comes with the distributed source.
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#
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# run this script in src/backend/catalog.
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#
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egrep '^DATA' pg_*.h | \
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sed -e 's/^.*OID[^=]*=[^0-9]*//' -e 's/[^0-9].*$//' | \
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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, "-";
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}'
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