diff --git a/mysql-test/main/information_schema.result b/mysql-test/main/information_schema.result
index 62a563bf483..20b5985deb6 100644
--- a/mysql-test/main/information_schema.result
+++ b/mysql-test/main/information_schema.result
@@ -2201,3 +2201,67 @@ SCHEMA_NAME
 #
 # End of 10.1 tests
 #
+#
+# MDEV-21201:No records produced in information_schema query,
+# depending on projection
+#
+create table t (i int, constraint a check (i > 0));
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+join information_schema.CHECK_CONSTRAINTS cc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_NAME	CHECK_CLAUSE
+test	t	a	`i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+join information_schema.TABLE_CONSTRAINTS tc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_NAME	CHECK_CLAUSE
+test	t	a	`i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+NATURAL join information_schema.CHECK_CONSTRAINTS cc
+;
+TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_NAME	CHECK_CLAUSE
+test	t	a	`i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+NATURAL join information_schema.TABLE_CONSTRAINTS tc
+;
+TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_NAME	CHECK_CLAUSE
+test	t	a	`i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE,
+tc.CONSTRAINT_CATALOG,
+tc.CONSTRAINT_SCHEMA
+from information_schema.TABLE_CONSTRAINTS tc
+join information_schema.CHECK_CONSTRAINTS cc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_NAME	CHECK_CLAUSE	CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA
+test	t	a	`i` > 0	def	test
+drop table t;
+#
+# End of 10.3 tests
+#
diff --git a/mysql-test/main/information_schema.test b/mysql-test/main/information_schema.test
index 08eeef5aa90..d97aed0e0f2 100644
--- a/mysql-test/main/information_schema.test
+++ b/mysql-test/main/information_schema.test
@@ -1922,3 +1922,65 @@ SELECT SCHEMA_NAME from information_schema.schemata where schema_name=REPEAT('a'
 --echo #
 --echo # End of 10.1 tests
 --echo #
+
+
+--echo #
+--echo # MDEV-21201:No records produced in information_schema query,
+--echo # depending on projection
+--echo #
+
+create table t (i int, constraint a check (i > 0));
+
+--disable_warnings
+select
+  tc.TABLE_SCHEMA,
+  tc.TABLE_NAME,
+  cc.CONSTRAINT_NAME,
+  cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+  join information_schema.CHECK_CONSTRAINTS cc
+    using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+select
+  tc.TABLE_SCHEMA,
+  tc.TABLE_NAME,
+  cc.CONSTRAINT_NAME,
+  cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+  join information_schema.TABLE_CONSTRAINTS tc
+    using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+select
+  tc.TABLE_SCHEMA,
+  tc.TABLE_NAME,
+  cc.CONSTRAINT_NAME,
+  cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+  NATURAL join information_schema.CHECK_CONSTRAINTS cc
+;
+select
+  tc.TABLE_SCHEMA,
+  tc.TABLE_NAME,
+  cc.CONSTRAINT_NAME,
+  cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+  NATURAL join information_schema.TABLE_CONSTRAINTS tc
+;
+select
+  tc.TABLE_SCHEMA,
+  tc.TABLE_NAME,
+  cc.CONSTRAINT_NAME,
+  cc.CHECK_CLAUSE,
+  tc.CONSTRAINT_CATALOG,
+  tc.CONSTRAINT_SCHEMA
+from information_schema.TABLE_CONSTRAINTS tc
+  join information_schema.CHECK_CONSTRAINTS cc
+    using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+--enable_warnings
+
+drop table t;
+
+--echo #
+--echo # End of 10.3 tests
+--echo #
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index ac73b5e9cdf..6802816caaf 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -8904,6 +8904,8 @@ void add_join_natural(TABLE_LIST *a, TABLE_LIST *b, List<String> *using_fields,
                       SELECT_LEX *lex)
 {
   b->natural_join= a;
+  a->part_of_natural_join= TRUE;
+  b->part_of_natural_join= TRUE;
   lex->prev_join_using= using_fields;
 }
 
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index 3dbc7724928..c6e801b7976 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -8183,7 +8183,10 @@ TABLE *create_schema_table(THD *thd, TABLE_LIST *table_list)
   else
     all_items= thd->free_list;
 
-  mark_all_fields_used_in_query(thd, fields_info, &bitmap, all_items);
+  if (table_list->part_of_natural_join)
+    bitmap_set_all(&bitmap);
+  else
+    mark_all_fields_used_in_query(thd, fields_info, &bitmap, all_items);
 
   for (field_count=0; fields_info->field_name; fields_info++)
   {
diff --git a/sql/table.h b/sql/table.h
index a5821a712c6..3d289bf241a 100644
--- a/sql/table.h
+++ b/sql/table.h
@@ -2183,6 +2183,7 @@ struct TABLE_LIST
     parsing 'this' is a NATURAL/USING join iff (natural_join != NULL).
   */
   TABLE_LIST *natural_join;
+  bool part_of_natural_join;
   /*
     True if 'this' represents a nested join that is a NATURAL JOIN.
     For one of the operands of 'this', the member 'natural_join' points