diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index e2859df..e219b78 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -123,6 +123,12 @@ int			autovacuum_vac_cost_limit;
 
 int			Log_autovacuum_min_duration = -1;
 
+/* Hook for plugins to get informations */
+autovacuum_list_tables_hook_type autovacuum_list_tables_hook = NULL;
+autovacuum_begin_table_hook_type autovacuum_begin_table_hook = NULL;
+autovacuum_end_table_hook_type autovacuum_end_table_hook = NULL;
+autovacuum_database_finished_hook_type autovacuum_database_finished_hook = NULL;
+
 /* how long to keep pgstat data in the launcher, in milliseconds */
 #define STATS_READ_DELAY 1000
 
@@ -2178,6 +2184,13 @@ do_autovacuum(void)
 										  ALLOCSET_DEFAULT_MINSIZE,
 										  ALLOCSET_DEFAULT_MAXSIZE);
 
+	/* inform potential extension about the table we plan to clean */
+	if (autovacuum_list_tables_hook)
+	{
+		(*autovacuum_list_tables_hook) (MyWorkerInfo->wi_proc->pid,
+				MyDatabaseId, table_oids);
+	}
+
 	/*
 	 * Perform operations on collected tables.
 	 */
@@ -2243,6 +2256,12 @@ do_autovacuum(void)
 		if (skipit)
 		{
 			LWLockRelease(AutovacuumScheduleLock);
+
+			/* warn potential extension we won't work on this table */
+			if (autovacuum_end_table_hook)
+				(*autovacuum_end_table_hook) (MyWorkerInfo->wi_proc->pid,
+						MyDatabaseId, relid, false);
+
 			continue;
 		}
 
@@ -2263,6 +2282,12 @@ do_autovacuum(void)
 		{
 			/* someone else vacuumed the table, or it went away */
 			LWLockRelease(AutovacuumScheduleLock);
+
+			/* warn potential extension we won't work on this table */
+			if (autovacuum_end_table_hook)
+				(*autovacuum_end_table_hook) (MyWorkerInfo->wi_proc->pid,
+						MyDatabaseId, relid, false);
+
 			continue;
 		}
 
@@ -2316,6 +2341,12 @@ do_autovacuum(void)
 		if (!tab->at_relname || !tab->at_nspname || !tab->at_datname)
 			goto deleted;
 
+		/* warn potential extension we're starting to work on this table */
+		if (autovacuum_begin_table_hook)
+			(*autovacuum_begin_table_hook) (MyWorkerInfo->wi_proc->pid,
+					MyDatabaseId, tab->at_relid, tab->at_vacoptions,
+					tab->at_params);
+
 		/*
 		 * We will abort vacuuming the current table if something errors out,
 		 * and continue with the next one in schedule; in particular, this
@@ -2337,6 +2368,11 @@ do_autovacuum(void)
 		}
 		PG_CATCH();
 		{
+			/* warn potential extension we cancelled work on this table */
+			if (autovacuum_end_table_hook)
+				(*autovacuum_end_table_hook) (MyWorkerInfo->wi_proc->pid,
+						MyDatabaseId, relid, true);
+
 			/*
 			 * Abort the transaction, start a new one, and proceed with the
 			 * next table in our list.
@@ -2384,6 +2420,11 @@ deleted:
 		MyWorkerInfo->wi_tableoid = InvalidOid;
 		LWLockRelease(AutovacuumLock);
 
+		/* warn potential extension we've finished working on this table */
+		if (autovacuum_end_table_hook)
+			(*autovacuum_end_table_hook) (MyWorkerInfo->wi_proc->pid,
+					MyDatabaseId, relid, false);
+
 		/* restore vacuum cost GUCs for the next iteration */
 		VacuumCostDelay = stdVacuumCostDelay;
 		VacuumCostLimit = stdVacuumCostLimit;
@@ -2402,6 +2443,10 @@ deleted:
 
 	/* Finally close out the last transaction. */
 	CommitTransactionCommand();
+
+	/* inform potential extension we finished working on this database */
+	if (autovacuum_database_finished_hook)
+		(*autovacuum_database_finished_hook) (MyWorkerInfo->wi_proc->pid);
 }
 
 /*
diff --git a/src/include/postmaster/autovacuum.h b/src/include/postmaster/autovacuum.h
index b5000b0..8b2dd23 100644
--- a/src/include/postmaster/autovacuum.h
+++ b/src/include/postmaster/autovacuum.h
@@ -14,6 +14,7 @@
 #ifndef AUTOVACUUM_H
 #define AUTOVACUUM_H
 
+#include "commands/vacuum.h"
 
 /* GUC variables */
 extern bool autovacuum_start_daemon;
@@ -29,6 +30,21 @@ extern int	autovacuum_multixact_freeze_max_age;
 extern int	autovacuum_vac_cost_delay;
 extern int	autovacuum_vac_cost_limit;
 
+/* Hooks for plugins to get informations */
+typedef void (*autovacuum_list_tables_hook_type) (int pid, Oid dbid,
+		List *table_oids);
+extern PGDLLIMPORT autovacuum_list_tables_hook_type autovacuum_list_tables_hook;
+
+typedef void (*autovacuum_begin_table_hook_type) (int pid, Oid dbid, Oid relid,
+		int vacoptions, VacuumParams params);
+extern PGDLLIMPORT autovacuum_begin_table_hook_type autovacuum_begin_table_hook;
+
+typedef void (*autovacuum_end_table_hook_type) (int pid, Oid dbid, Oid relid, bool cancelled);
+extern PGDLLIMPORT autovacuum_end_table_hook_type autovacuum_end_table_hook;
+
+typedef void (*autovacuum_database_finished_hook_type) (int pid);
+extern PGDLLIMPORT autovacuum_database_finished_hook_type autovacuum_database_finished_hook;
+
 /* autovacuum launcher PID, only valid when worker is shutting down */
 extern int	AutovacuumLauncherPid;