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Fix constraint_column_usage for foreign keys.

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This commit is contained in:
Peter Eisentraut
2003-12-16 14:57:20 +00:00
parent f57832f646
commit 0fb3ec1a58
1 changed files with 3 additions and 4 deletions
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7
src/backend/catalog/information_schema.sql
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@ -4,7 +4,7 @@
*
* Copyright 2003, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/catalog/information_schema.sql,v 1.19 2003/12/07 19:43:02 tgl Exp $
* $PostgreSQL: pgsql/src/backend/catalog/information_schema.sql,v 1.20 2003/12/16 14:57:20 petere Exp $
*/
/*
@ -445,10 +445,9 @@ CREATE VIEW constraint_column_usage AS
pg_constraint c, _pg_keypositions() AS pos(n)
WHERE nr.oid = r.relnamespace
AND r.oid = a.attrelid
AND r.oid = c.conrelid
AND nc.oid = c.connamespace
AND (CASE WHEN c.contype = 'f' THEN c.confkey[pos.n] = a.attnum
ELSE c.conkey[pos.n] = a.attnum END)
AND (CASE WHEN c.contype = 'f' THEN r.oid = c.confrelid AND c.confkey[pos.n] = a.attnum
ELSE r.oid = c.conrelid AND c.conkey[pos.n] = a.attnum END)
AND a.attnum > 0
AND NOT a.attisdropped
AND c.contype IN ('p', 'u', 'f')