homework-jianmu/docs/examples/python/stmt_websocket_example.py

79 lines
2.2 KiB
Python

#!
import time
import taosws
import taos
def before_test(db_name):
taos_conn = taos.connect()
taos_conn.execute("drop database if exists %s" % db_name)
taos_conn.execute("create database %s keep 36500" % db_name)
taos_conn.select_db(db_name)
taos_conn.execute("create table t1 (ts timestamp, a int, b float, c varchar(10))")
taos_conn.execute(
"create table stb1 (ts timestamp, a int, b float, c varchar(10)) tags (t1 int, t2 binary(10))")
taos_conn.close()
def after_test(db_name):
taos_conn = taos.connect()
taos_conn.execute("drop database if exists %s" % db_name)
taos_conn.close()
def stmt_insert():
db_name = 'test_ws_stmt_{}'.format(int(time.time()))
before_test(db_name)
conn = taosws.connect('taosws://root:taosdata@localhost:6041/%s' % db_name)
stmt = conn.statement()
stmt.prepare("insert into t1 values (?, ?, ?, ?)")
stmt.bind_param([
taosws.millis_timestamps_to_column([1686844800000, 1686844801000, 1686844802000, 1686844803000]),
taosws.ints_to_column([1, 2, 3, 4]),
taosws.floats_to_column([1.1, 2.2, 3.3, 4.4]),
taosws.varchar_to_column(['a', 'b', 'c', 'd']),
])
stmt.add_batch()
rows = stmt.execute()
assert rows == 4
stmt.close()
after_test(db_name)
def stmt_insert_into_stable():
db_name = 'test_ws_stmt_{}'.format(int(time.time()))
before_test(db_name)
conn = taosws.connect("taosws://root:taosdata@localhost:6041/%s" % db_name)
stmt = conn.statement()
stmt.prepare("insert into ? using stb1 tags (?, ?) values (?, ?, ?, ?)")
stmt.set_tbname('stb1_1')
stmt.set_tags([
taosws.int_to_tag(1),
taosws.varchar_to_tag('aaa'),
])
stmt.bind_param([
taosws.millis_timestamps_to_column([1686844800000, 1686844801000, 1686844802000, 1686844803000]),
taosws.ints_to_column([1, 2, 3, 4]),
taosws.floats_to_column([1.1, 2.2, 3.3, 4.4]),
taosws.varchar_to_column(['a', 'b', 'c', 'd']),
])
stmt.add_batch()
rows = stmt.execute()
assert rows == 4
stmt.close()
after_test(db_name)
if __name__ == '__main__':
stmt_insert()
stmt_insert_into_stable()