git.postgresql.org Git - postgresql.git/commitdiff

diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c

index 83c584ddc8cd4b7687171b116c293d5406445519..d516df0ac5c7073f614f2f95bcd4597db53ba840 100644 (file)

--- a/src/backend/postmaster/autovacuum.c

+++ b/src/backend/postmaster/autovacuum.c

*

* Given a relation's pg_class tuple, return the AutoVacOpts portion of

* reloptions, if set; otherwise, return NULL.

+ *

+ * Note: callers do not have a relation lock on the table at this point,

+ * so the table could have been dropped, and its catalog rows gone, after

+ * we acquired the pg_class row. If pg_class had a TOAST table, this would

+ * be a risk; fortunately, it doesn't.

*/

static AutoVacOpts *

extract_autovac_opts(HeapTuple tup, TupleDesc pg_class_desc)