diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/commands/tablecmds.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 25f3a3d1948..90a5238c4d4 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -11443,15 +11443,19 @@ transformFkeyGetPrimaryKey(Relation pkrel, Oid *indexOid, /* * transformFkeyCheckAttrs - * - * Make sure that the attributes of a referenced table belong to a unique - * (or primary key) constraint. Return the OID of the index supporting - * the constraint, as well as the opclasses associated with the index - * columns. + * Validate that the 'attnums' columns in the 'pkrel' relation are valid to + * reference as part of a foreign key constraint. + * + * Returns the OID of the unique index supporting the constraint and + * populates the caller-provided 'opclasses' array with the opclasses + * associated with the index columns. + * + * Raises an ERROR on validation failure. */ static Oid transformFkeyCheckAttrs(Relation pkrel, int numattrs, int16 *attnums, - Oid *opclasses) /* output parameter */ + Oid *opclasses) { Oid indexoid = InvalidOid; bool found = false; |