diff --git a/src/test/regress/expected/stats_ext.out b/src/test/regress/expected/stats_ext.out
index 9fa659c71d..e8439f5a34 100644
--- a/src/test/regress/expected/stats_ext.out
+++ b/src/test/regress/expected/stats_ext.out
@@ -536,6 +536,13 @@ SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies WHERE
 -- create statistics
 CREATE STATISTICS func_deps_stat (dependencies) ON a, b, c FROM functional_dependencies;
 ANALYZE functional_dependencies;
+-- print the detected dependencies
+SELECT dependencies FROM pg_stats_ext WHERE statistics_name = 'func_deps_stat';
+                                                dependencies                                                
+------------------------------------------------------------------------------------------------------------
+ {"3 => 4": 1.000000, "3 => 6": 1.000000, "4 => 6": 1.000000, "3, 4 => 6": 1.000000, "3, 6 => 4": 1.000000}
+(1 row)
+
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies WHERE a = 1 AND b = ''1''');
  estimated | actual 
 -----------+--------
@@ -697,6 +704,12 @@ SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi
        102 |    714
 (1 row)
 
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND 0 = b');
+ estimated | actual 
+-----------+--------
+       102 |    714
+(1 row)
+
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE c = 0 AND d = 0');
  estimated | actual 
 -----------+--------
@@ -709,6 +722,12 @@ SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi
          1 |     64
 (1 row)
 
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND b = 0 AND 0 = c AND d = 0');
+ estimated | actual 
+-----------+--------
+         1 |     64
+(1 row)
+
 -- create separate functional dependencies
 CREATE STATISTICS functional_dependencies_multi_1 (dependencies) ON a, b FROM functional_dependencies_multi;
 CREATE STATISTICS functional_dependencies_multi_2 (dependencies) ON c, d FROM functional_dependencies_multi;
@@ -719,6 +738,12 @@ SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi
        714 |    714
 (1 row)
 
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND 0 = b');
+ estimated | actual 
+-----------+--------
+       714 |    714
+(1 row)
+
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE c = 0 AND d = 0');
  estimated | actual 
 -----------+--------
@@ -731,6 +756,12 @@ SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi
         65 |     64
 (1 row)
 
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND b = 0 AND 0 = c AND d = 0');
+ estimated | actual 
+-----------+--------
+        65 |     64
+(1 row)
+
 DROP TABLE functional_dependencies_multi;
 -- MCV lists
 CREATE TABLE mcv_lists (
diff --git a/src/test/regress/sql/stats_ext.sql b/src/test/regress/sql/stats_ext.sql
index 0ece39a279..3e92782212 100644
--- a/src/test/regress/sql/stats_ext.sql
+++ b/src/test/regress/sql/stats_ext.sql
@@ -318,6 +318,9 @@ CREATE STATISTICS func_deps_stat (dependencies) ON a, b, c FROM functional_depen
 
 ANALYZE functional_dependencies;
 
+-- print the detected dependencies
+SELECT dependencies FROM pg_stats_ext WHERE statistics_name = 'func_deps_stat';
+
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies WHERE a = 1 AND b = ''1''');
 
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies WHERE a = 1 AND b = ''1'' AND c = 1');
@@ -391,8 +394,10 @@ ANALYZE functional_dependencies_multi;
 
 -- estimates without any functional dependencies
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE a = 0 AND b = 0');
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND 0 = b');
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE c = 0 AND d = 0');
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE a = 0 AND b = 0 AND c = 0 AND d = 0');
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND b = 0 AND 0 = c AND d = 0');
 
 -- create separate functional dependencies
 CREATE STATISTICS functional_dependencies_multi_1 (dependencies) ON a, b FROM functional_dependencies_multi;
@@ -401,8 +406,10 @@ CREATE STATISTICS functional_dependencies_multi_2 (dependencies) ON c, d FROM fu
 ANALYZE functional_dependencies_multi;
 
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE a = 0 AND b = 0');
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND 0 = b');
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE c = 0 AND d = 0');
 SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE a = 0 AND b = 0 AND c = 0 AND d = 0');
+SELECT * FROM check_estimated_rows('SELECT * FROM functional_dependencies_multi WHERE 0 = a AND b = 0 AND 0 = c AND d = 0');
 
 DROP TABLE functional_dependencies_multi;