diff options
Diffstat (limited to 'src/backend/commands/foreigncmds.c')
| -rw-r--r-- | src/backend/commands/foreigncmds.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/backend/commands/foreigncmds.c b/src/backend/commands/foreigncmds.c index b30ff409235..5e58713da70 100644 --- a/src/backend/commands/foreigncmds.c +++ b/src/backend/commands/foreigncmds.c @@ -201,6 +201,82 @@ GetUserOidFromMapping(const char *username, bool missing_ok) /* + * Rename foreign-data wrapper + */ +void +RenameForeignDataWrapper(const char *oldname, const char *newname) +{ + HeapTuple tup; + Relation rel; + + rel = heap_open(ForeignDataWrapperRelationId, RowExclusiveLock); + + tup = SearchSysCacheCopy1(FOREIGNDATAWRAPPERNAME, CStringGetDatum(oldname)); + if (!HeapTupleIsValid(tup)) + ereport(ERROR, + (errcode(ERRCODE_UNDEFINED_OBJECT), + errmsg("foreign-data wrapper \"%s\" does not exist", oldname))); + + /* make sure the new name doesn't exist */ + if (SearchSysCacheExists1(FOREIGNDATAWRAPPERNAME, CStringGetDatum(newname))) + ereport(ERROR, + (errcode(ERRCODE_DUPLICATE_OBJECT), + errmsg("foreign-data wrapper \"%s\" already exists", newname))); + + /* must be owner of FDW */ + if (!pg_foreign_data_wrapper_ownercheck(HeapTupleGetOid(tup), GetUserId())) + aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_FDW, + oldname); + + /* rename */ + namestrcpy(&(((Form_pg_foreign_data_wrapper) GETSTRUCT(tup))->fdwname), newname); + simple_heap_update(rel, &tup->t_self, tup); + CatalogUpdateIndexes(rel, tup); + + heap_close(rel, NoLock); + heap_freetuple(tup); +} + + +/* + * Rename foreign server + */ +void +RenameForeignServer(const char *oldname, const char *newname) +{ + HeapTuple tup; + Relation rel; + + rel = heap_open(ForeignServerRelationId, RowExclusiveLock); + + tup = SearchSysCacheCopy1(FOREIGNSERVERNAME, CStringGetDatum(oldname)); + if (!HeapTupleIsValid(tup)) + ereport(ERROR, + (errcode(ERRCODE_UNDEFINED_OBJECT), + errmsg("server \"%s\" does not exist", oldname))); + + /* make sure the new name doesn't exist */ + if (SearchSysCacheExists1(FOREIGNSERVERNAME, CStringGetDatum(newname))) + ereport(ERROR, + (errcode(ERRCODE_DUPLICATE_OBJECT), + errmsg("server \"%s\" already exists", newname))); + + /* must be owner of server */ + if (!pg_foreign_server_ownercheck(HeapTupleGetOid(tup), GetUserId())) + aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_FOREIGN_SERVER, + oldname); + + /* rename */ + namestrcpy(&(((Form_pg_foreign_server) GETSTRUCT(tup))->srvname), newname); + simple_heap_update(rel, &tup->t_self, tup); + CatalogUpdateIndexes(rel, tup); + + heap_close(rel, NoLock); + heap_freetuple(tup); +} + + +/* * Change foreign-data wrapper owner. * * Allow this only for superusers; also the new owner must be a |