2 files changed, 16 insertions, 14 deletions
diff --git a/src/test/regress/expected/stats.out b/src/test/regress/expected/stats.out
index 494cef07d31..0694de736a0 100644
--- a/src/test/regress/expected/stats.out
+++ b/src/test/regress/expected/stats.out
@@ -975,38 +975,39 @@ SELECT stats_reset > :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
 (1 row)
 
 SELECT stats_reset AS wal_reset_ts FROM pg_stat_wal \gset
--- Test that reset_shared with no specified stats type doesn't reset anything
-SELECT pg_stat_reset_shared(NULL);
+-- Test that reset_shared with no argument resets all the stats types
+-- supported (providing NULL as argument has the same effect).
+SELECT pg_stat_reset_shared();
  pg_stat_reset_shared 
 ----------------------
  
 (1 row)
 
-SELECT stats_reset = :'archiver_reset_ts'::timestamptz FROM pg_stat_archiver;
+SELECT stats_reset > :'archiver_reset_ts'::timestamptz FROM pg_stat_archiver;
  ?column? 
 ----------
  t
 (1 row)
 
-SELECT stats_reset = :'bgwriter_reset_ts'::timestamptz FROM pg_stat_bgwriter;
+SELECT stats_reset > :'bgwriter_reset_ts'::timestamptz FROM pg_stat_bgwriter;
  ?column? 
 ----------
  t
 (1 row)
 
-SELECT stats_reset = :'checkpointer_reset_ts'::timestamptz FROM pg_stat_checkpointer;
+SELECT stats_reset > :'checkpointer_reset_ts'::timestamptz FROM pg_stat_checkpointer;
  ?column? 
 ----------
  t
 (1 row)
 
-SELECT stats_reset = :'recovery_prefetch_reset_ts'::timestamptz FROM pg_stat_recovery_prefetch;
+SELECT stats_reset > :'recovery_prefetch_reset_ts'::timestamptz FROM pg_stat_recovery_prefetch;
  ?column? 
 ----------
  t
 (1 row)
 
-SELECT stats_reset = :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
+SELECT stats_reset > :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
  ?column? 
 ----------
  t
diff --git a/src/test/regress/sql/stats.sql b/src/test/regress/sql/stats.sql
index 7ae8b8a2762..13db45d4dc4 100644
--- a/src/test/regress/sql/stats.sql
+++ b/src/test/regress/sql/stats.sql
@@ -488,13 +488,14 @@ SELECT pg_stat_reset_shared('wal');
 SELECT stats_reset > :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
 SELECT stats_reset AS wal_reset_ts FROM pg_stat_wal \gset
 
--- Test that reset_shared with no specified stats type doesn't reset anything
-SELECT pg_stat_reset_shared(NULL);
-SELECT stats_reset = :'archiver_reset_ts'::timestamptz FROM pg_stat_archiver;
-SELECT stats_reset = :'bgwriter_reset_ts'::timestamptz FROM pg_stat_bgwriter;
-SELECT stats_reset = :'checkpointer_reset_ts'::timestamptz FROM pg_stat_checkpointer;
-SELECT stats_reset = :'recovery_prefetch_reset_ts'::timestamptz FROM pg_stat_recovery_prefetch;
-SELECT stats_reset = :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
+-- Test that reset_shared with no argument resets all the stats types
+-- supported (providing NULL as argument has the same effect).
+SELECT pg_stat_reset_shared();
+SELECT stats_reset > :'archiver_reset_ts'::timestamptz FROM pg_stat_archiver;
+SELECT stats_reset > :'bgwriter_reset_ts'::timestamptz FROM pg_stat_bgwriter;
+SELECT stats_reset > :'checkpointer_reset_ts'::timestamptz FROM pg_stat_checkpointer;
+SELECT stats_reset > :'recovery_prefetch_reset_ts'::timestamptz FROM pg_stat_recovery_prefetch;
+SELECT stats_reset > :'wal_reset_ts'::timestamptz FROM pg_stat_wal;
 
 -- Test error case for reset_shared with unknown stats type
 SELECT pg_stat_reset_shared('unknown');