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58 lines
1.3 KiB
Bash
Executable File
58 lines
1.3 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 script 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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INPUTFILE="tmp$$a"
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DUPSFILE="tmp$$b"
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NONDUPSFILE="tmp$$c"
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rm -f $INPUTFILE $DUPSFILE $NONDUPSFILE
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trap "rm -f $INPUTFILE $DUPSFILE $NONDUPSFILE" 0 1 2 3 15
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# Read input
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cat "$@" >$INPUTFILE
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# Look for fields with multiple references.
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cat $INPUTFILE | cut -d' ' -f2 | sort | uniq -d >$DUPSFILE
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if [ -s $DUPSFILE ] ; then
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echo "Ignoring these fields that link to multiple tables:" 1>&2
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cat $DUPSFILE 1>&2
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fi
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# Get the non-multiply-referenced fields.
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cat $INPUTFILE | while read LINE
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do
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set -- $LINE
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grep "^$2\$" $DUPSFILE >/dev/null 2>&1 || echo $LINE
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done >$NONDUPSFILE
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# Generate the output.
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cat $NONDUPSFILE |
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$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 ctid, %s \n\
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FROM %s.%s fk \n\
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WHERE %s != 0 AND \n\
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NOT EXISTS(SELECT 1 FROM %s.%s pk WHERE pk.oid = fk.%s);\n",
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$4, $2, $3, $4,
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$6, $7, $4;
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}'
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exit 0
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