Subject: [PATCH v1 2/4] autovac: resolve relopts before vacuuming

From: Nathan Bossart <[email-masked]>
Date: Mon, 23 Jun 2025 14:42:39 -0500

---
 src/backend/commands/vacuum.c       |  7 ++--
 src/backend/postmaster/autovacuum.c | 52 +++++++++++++++++++++--------
 2 files changed, 44 insertions(+), 15 deletions(-)

diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 33a33bf6b1c..0015b9ef4b0 100644
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -421,7 +421,7 @@ ExecVacuum(ParseState *pstate, VacuumStmt *vacstmt, bool isTopLevel)
 	/*
 	 * Later, in vacuum_rel(), we check if a reloption override was specified.
 	 */
-	params.max_eager_freeze_failure_rate = vacuum_max_eager_freeze_failure_rate;
+	params.max_eager_freeze_failure_rate = -1.0;
 
 	/*
 	 * Create special memory context for cross-transaction storage.
@@ -2195,10 +2195,13 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 	 * Check if the vacuum_max_eager_freeze_failure_rate table storage
 	 * parameter was specified. This overrides the GUC value.
 	 */
-	if (rel->rd_options != NULL &&
+	if (params->max_eager_freeze_failure_rate < 0 &&
+		rel->rd_options != NULL &&
 		((StdRdOptions *) rel->rd_options)->vacuum_max_eager_freeze_failure_rate >= 0)
 		params->max_eager_freeze_failure_rate =
 			((StdRdOptions *) rel->rd_options)->vacuum_max_eager_freeze_failure_rate;
+	else
+		params->max_eager_freeze_failure_rate = vacuum_max_eager_freeze_failure_rate;
 
 	/*
 	 * Set truncate option based on truncate reloption or GUC if it wasn't
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index f86c9fed853..3bedca971ff 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -2758,6 +2758,9 @@ table_recheck_autovac(Oid relid, HTAB *table_toast_map,
 		int			multixact_freeze_table_age;
 		int			log_min_duration;
 		AutoVacOpts *avopts = (relopts ? &relopts->autovacuum : NULL);
+		VacOptValue index_cleanup;
+		VacOptValue truncate;
+		double		max_eager_freeze_failure_rate;
 
 		/*
 		 * Calculate the vacuum cost parameters and the freeze ages.  If there
@@ -2790,6 +2793,39 @@ table_recheck_autovac(Oid relid, HTAB *table_toast_map,
 			? avopts->multixact_freeze_table_age
 			: default_multixact_freeze_table_age;
 
+		if (relopts)
+		{
+			switch (relopts->vacuum_index_cleanup)
+			{
+				case STDRD_OPTION_VACUUM_INDEX_CLEANUP_AUTO:
+					index_cleanup = VACOPTVALUE_AUTO;
+					break;
+				case STDRD_OPTION_VACUUM_INDEX_CLEANUP_ON:
+					index_cleanup = VACOPTVALUE_ENABLED;
+					break;
+				case STDRD_OPTION_VACUUM_INDEX_CLEANUP_OFF:
+					index_cleanup = VACOPTVALUE_DISABLED;
+					break;
+			}
+		}
+		else
+			index_cleanup = VACOPTVALUE_UNSPECIFIED;
+
+		if (relopts && relopts->vacuum_truncate_set)
+		{
+			if (relopts->vacuum_truncate)
+				truncate = VACOPTVALUE_ENABLED;
+			else
+				truncate = VACOPTVALUE_DISABLED;
+		}
+		else
+			truncate = VACOPTVALUE_UNSPECIFIED;
+
+		if (relopts && relopts->vacuum_max_eager_freeze_failure_rate >= 0)
+			max_eager_freeze_failure_rate = relopts->vacuum_max_eager_freeze_failure_rate;
+		else
+			max_eager_freeze_failure_rate = -1.0;
+
 		tab = palloc(sizeof(autovac_table));
 		tab->at_relid = relid;
 		tab->at_sharedrel = classForm->relisshared;
@@ -2806,13 +2842,8 @@ table_recheck_autovac(Oid relid, HTAB *table_toast_map,
 			(doanalyze ? VACOPT_ANALYZE : 0) |
 			(!wraparound ? VACOPT_SKIP_LOCKED : 0);
 
-		/*
-		 * index_cleanup and truncate are unspecified at first in autovacuum.
-		 * They will be filled in with usable values using their reloptions
-		 * (or reloption defaults) later.
-		 */
-		tab->at_params.index_cleanup = VACOPTVALUE_UNSPECIFIED;
-		tab->at_params.truncate = VACOPTVALUE_UNSPECIFIED;
+		tab->at_params.index_cleanup = index_cleanup;
+		tab->at_params.truncate = truncate;
 		/* As of now, we don't support parallel vacuum for autovacuum */
 		tab->at_params.nworkers = -1;
 		tab->at_params.freeze_min_age = freeze_min_age;
@@ -2822,12 +2853,7 @@ table_recheck_autovac(Oid relid, HTAB *table_toast_map,
 		tab->at_params.is_wraparound = wraparound;
 		tab->at_params.log_min_duration = log_min_duration;
 		tab->at_params.toast_parent = InvalidOid;
-
-		/*
-		 * Later, in vacuum_rel(), we check reloptions for any
-		 * vacuum_max_eager_freeze_failure_rate override.
-		 */
-		tab->at_params.max_eager_freeze_failure_rate = vacuum_max_eager_freeze_failure_rate;
+		tab->at_params.max_eager_freeze_failure_rate = max_eager_freeze_failure_rate;
 		tab->at_storage_param_vac_cost_limit = avopts ?
 			avopts->vacuum_cost_limit : 0;
 		tab->at_storage_param_vac_cost_delay = avopts ?
-- 
2.39.5 (Apple Git-154)

--QWBYbd5Ar5k8NvSv
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0003-autovac-combine-reloptions-correctly.patch