MDEV-28340 Add tests for versioning, sequence, I_S table

mysql-test/suite/sysschema/r/pr_table_exists.result

-DROP TABLE IF EXISTS t1, t2;
-DROP VIEW IF EXISTS v_t1;
 CREATE TABLE t1 (id INT PRIMARY KEY);
-CREATE view v_t1 AS SELECT * FROM t1;
 CALL sys.table_exists('test', 't1', @exists);
 SELECT @exists;
 @exists
 BASE TABLE
+DROP TABLE t1;
+CREATE view v_t1 AS SELECT 1;
 CALL sys.table_exists('test', 'v_t1', @exists);
 SELECT @exists;
 @exists
 VIEW
+DROP VIEW v_t1;
+CREATE TABLE tv (i int) with system versioning;
+CALL sys.table_exists('test','tv',@exists);
+SELECT @exists;
+@exists
+BASE TABLE
+DROP TABLE tv;
+CREATE SEQUENCE s;
+CALL sys.table_exists('test','s',@exists);
+SELECT @exists;
+@exists
+SEQUENCE
+DROP SEQUENCE s;
 CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
 CALL sys.table_exists('test', 't1', @exists);
 SELECT @exists;
 @exists
 TEMPORARY
+DROP TEMPORARY TABLE t1;
+CALL sys.table_exists('information_schema', 'all_plugins', @exists);
+SELECT @exists;
+@exists
+SYSTEM VIEW
 CALL sys.table_exists('test', 't2', @exists);
 SELECT @exists;
 @exists
@@ -24,7 +41,4 @@ CALL sys.table_exists(@identifier, 't1', @exists);
 ERROR 22001: Data too long for column 'in_db' at row 1
 CALL sys.table_exists('test', @identifier, @exists);
 ERROR 22001: Data too long for column 'in_table' at row 1
-DROP TEMPORARY TABLE t1;
-DROP TABLE t1;
-DROP VIEW v_t1;
 SET @identifier := NULL;

mysql-test/suite/sysschema/t/pr_table_exists.test

 -- source include/not_embedded.inc
 
---disable_warnings
-DROP TABLE IF EXISTS t1, t2;
-DROP VIEW IF EXISTS v_t1;
---enable_warnings
 
 # Create a base table and a view
 CREATE TABLE t1 (id INT PRIMARY KEY);
-CREATE view v_t1 AS SELECT * FROM t1;
-
 # Verify the base table and view is supported
 CALL sys.table_exists('test', 't1', @exists);
 SELECT @exists;
+DROP TABLE t1;
 
+CREATE view v_t1 AS SELECT 1;
 CALL sys.table_exists('test', 'v_t1', @exists);
 SELECT @exists;
+DROP VIEW v_t1;
+
+CREATE TABLE tv (i int) with system versioning;
+CALL sys.table_exists('test','tv',@exists);
+SELECT @exists;
+DROP TABLE tv;
+
+CREATE SEQUENCE s;
+CALL sys.table_exists('test','s',@exists);
+SELECT @exists;
+DROP SEQUENCE s;
 
 # Replace the base table with a temporary table
 CREATE TEMPORARY TABLE t1 (id INT PRIMARY KEY);
 CALL sys.table_exists('test', 't1', @exists);
 SELECT @exists;
+DROP TEMPORARY TABLE t1;
+
+CALL sys.table_exists('information_schema', 'all_plugins', @exists);
+SELECT @exists;
 
 # Try a non-existing table
 CALL sys.table_exists('test', 't2', @exists);
@@ -34,8 +45,4 @@ CALL sys.table_exists(@identifier, 't1', @exists);
 -- error 1406
 CALL sys.table_exists('test', @identifier, @exists);
 
-# Clean up
-DROP TEMPORARY TABLE t1;
-DROP TABLE t1;
-DROP VIEW v_t1;
 SET @identifier := NULL;