add test

tests/suites/0_stateless/02_ddl/02_0000_create_drop_view.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+import sqlalchemy
+import os
+from concurrent.futures import ThreadPoolExecutor, as_completed
+
+def recreate_view(con):
+    with con.begin() as c:
+        c.execute(sqlalchemy.text("DROP VIEW IF EXISTS v"))
+    with con.begin() as c:
+        c.execute(sqlalchemy.text("CREATE OR REPLACE VIEW v as select a,b from t"))
+
+def main():
+    tcp_port = os.getenv("QUERY_MYSQL_HANDLER_PORT")
+    if tcp_port is None:
+        port = "3307"
+    else:
+        port = tcp_port
+
+    uri = "mysql+pymysql://root:root@localhost:" + port + "/"
+    con = sqlalchemy.create_engine(uri, future=True)
+    with con.begin() as c:
+        c.execute(sqlalchemy.text("DROP TABLE IF EXISTS t"))
+        c.execute(sqlalchemy.text("CREATE TABLE t (a int not null, b int not null)"))
+
+    with ThreadPoolExecutor(max_workers=64) as executor:
+        futures = []
+        for _ in range(10):
+            futures.append(executor.submit(recreate_view, con))
+
+        for future in as_completed(futures):
+            future.result()
+
+if __name__ == '__main__':
+    main()