diff options
Diffstat (limited to 'src/backend/utils')
| -rw-r--r-- | src/backend/utils/adt/dbsize.c | 3 | ||||
| -rw-r--r-- | src/backend/utils/cache/relfilenodemap.c | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/backend/utils/adt/dbsize.c b/src/backend/utils/adt/dbsize.c index 9b01d9e3fbe..e7f20aade70 100644 --- a/src/backend/utils/adt/dbsize.c +++ b/src/backend/utils/adt/dbsize.c @@ -895,6 +895,9 @@ pg_relation_filenode(PG_FUNCTION_ARGS) * * We don't fail but return NULL if we cannot find a mapping. * + * Temporary relations are not detected, returning NULL (see + * RelidByRelfilenumber() for the reasons). + * * InvalidOid can be passed instead of the current database's default * tablespace. */ diff --git a/src/backend/utils/cache/relfilenodemap.c b/src/backend/utils/cache/relfilenodemap.c index 70c323c720d..08a7c5a93ee 100644 --- a/src/backend/utils/cache/relfilenodemap.c +++ b/src/backend/utils/cache/relfilenodemap.c @@ -132,6 +132,11 @@ InitializeRelfilenodeMap(void) * Map a relation's (tablespace, filenode) to a relation's oid and cache the * result. * + * A temporary relation may share its relfilenumber with a permanent relation + * or temporary relations created in other backends. Being able to uniquely + * identify a temporary relation would require a backend's proc number, which + * we do not know about. Hence, this function ignores this case. + * * Returns InvalidOid if no relation matching the criteria could be found. */ Oid @@ -211,6 +216,9 @@ RelidByRelfilenode(Oid reltablespace, Oid relfilenode) { Form_pg_class classform = (Form_pg_class) GETSTRUCT(ntp); + if (classform->relpersistence == RELPERSISTENCE_TEMP) + continue; + if (found) elog(ERROR, "unexpected duplicate for tablespace %u, relfilenode %u", |