Add a insert demo

tests/pytest/insert/insertDemo.py

+import taos
+import datetime
+import random
+import multiprocessing
+
+def taos_excute(table, connect_host):
+    conn = taos.connect(host=connect_host, user="root", password="taosdata", config="/etc/taos", database='test')
+    cursor = conn.cursor()
+    for i in range(1000000):
+        pk = random.randint(100001, 300000)
+        time_now = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")[:-3]
+        col1 = random.randint(1, 10000)
+        col2 = random.randint(1, 10000)
+        col3 = random.randint(1, 10000)
+        col4 = random.randint(1, 10000)
+        col5 = random.randint(1, 10000)
+        col6 = random.randint(1, 10000)
+        sql = f"INSERT INTO {table}_{pk} USING {table} TAGS ({pk}) VALUES ('{time_now}', {col1}, {col2}, {col3}, {col4}, {col5}, {col6})"
+        cursor.execute(sql)
+    cursor.close()
+    conn.close()
+
+def taos_init(table, connect_host, pk):
+    conn = taos.connect(host=connect_host, user="root", password="taosdata", config="/etc/taos", database='test')
+    cursor = conn.cursor()
+    sql = f"CREATE TABLE {table}_{pk} USING {table} TAGS ({pk})"
+    cursor.execute(sql)
+    cursor.close()
+    conn.close()
+
+print("init time:", datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
+
+connect_list = ["node1", "node2", "node3", "node4", "node5"]
+pool = multiprocessing.Pool(processes=108)
+
+for pk in range(100001, 300000):
+    pool.apply_async(func=taos_init, args=("test", connect_list[pk % 5], pk, ))
+
+print("start time:", datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
+
+for i in range(10000):
+    pool.apply_async(func=taos_excute, args=("test", connect_list[i % 5],))
+
+pool.close()
+pool.join()
+
+print("end time:", datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
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