Paweł Domański
59 lines
1.1 KiB
Bash
59 lines
1.1 KiB
Bash
#!/bin/bash
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# SHOWS FOREIGN KEY COUNT FOR EACH TABLE
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# THEN SHOWS FOREIGN KEYS FOR EACH TABLE
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PORT=""
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USER=""
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usage() {
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echo "Usage: $0 -d <dbname> [-U <user> -p <port>]"
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exit 1
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}
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while getopts "d:p:uU:" OPT;
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do case "${OPT}" in
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d) DBNAME=$OPTARG
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;;
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p) PORT="-p $OPTARG"
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;;
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U) USER="-U $OPTARG"
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;;
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u) usage
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;;
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[?]) usage
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esac;
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done
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if [ "$DBNAME" = "" ]
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then
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usage
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fi
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psql $PORT $USER $DBNAME <<_CODE_
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SELECT n.nspname as schema,
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t.relname as table,
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count(c.conname)
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FROM pg_class t
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JOIN pg_constraint c ON ( c.conrelid = t.OID AND c.contype = 'f')
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JOIN pg_namespace n ON (n.oid = t.relnamespace)
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WHERE relkind = 'r'
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AND t.relname NOT LIKE 'pg_%'
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AND t.relname NOT LIKE 'sql_%'
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GROUP BY 1, 2
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ORDER BY 1, 3;
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SELECT n.nspname as schema,
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t.relname as table,
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c.conname as fk_name
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FROM pg_class t
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JOIN pg_constraint c ON ( c.conrelid = t.OID AND c.contype = 'f')
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JOIN pg_namespace n ON (n.oid = t.relnamespace)
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WHERE relkind = 'r'
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AND t.relname NOT LIKE 'pg_%'
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AND t.relname NOT LIKE 'sql_%'
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ORDER BY 1, 2, 3;
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_CODE_
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