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54 lines
1.2 KiB
Bash
Executable File
54 lines
1.2 KiB
Bash
Executable File
#! /bin/sh
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# You first run findoidjoins on the template1 database, and send that
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# output into this file to generate a list of SQL statements.
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# NOTE: any field that findoidjoins thinks joins to more than one table
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# will NOT be checked by the output of this script. You should be
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# suspicious of multiple entries in findoidjoins' output.
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# Caution: you may need to use GNU awk.
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AWK=${AWK:-awk}
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trap "rm -f /tmp/$$ /tmp/$$a /tmp/$$b" 0 1 2 3 15
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# Read input
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cat "$@" >/tmp/$$
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# Look for fields with multiple references.
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cat /tmp/$$ | cut -d' ' -f2 | sort | uniq -d >/tmp/$$a
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if [ -s /tmp/$$a ] ; then
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echo "Ignoring these fields that link to multiple tables:" 1>&2
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cat /tmp/$$a 1>&2
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fi
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# Get the non-multiply-referenced fields.
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cat /tmp/$$ | while read LINE
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do
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set -- $LINE
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grep "$2" /tmp/$$a >/dev/null 2>&1 || echo $LINE
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done >/tmp/$$b
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# Generate the output.
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cat /tmp/$$b |
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$AWK -F'[ \.]' '\
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BEGIN \
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{
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printf "\
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--\n\
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-- This is created by pgsql/contrib/findoidjoins/make_oidjoin_check\n\
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--\n";
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}
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{
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printf "\
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SELECT oid, %s.%s \n\
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FROM %s \n\
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WHERE %s.%s != 0 AND \n\
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NOT EXISTS(SELECT * FROM %s AS t1 WHERE t1.oid = %s.%s);\n",
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$2, $3, $2,
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$2, $3,
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$5, $2, $3;
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}'
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exit 0
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