[TD-4043]<test>case for session window

tests/pytest/query/querySession.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+    def run(self):
+        tdSql.prepare()
+
+        print("==============step1")
+        tdSql.execute(
+            "create table if not exists st (ts timestamp, tagtype int) tags(dev nchar(50), tag2 binary(16))")
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_001 using st tags("dev_01", "tag_01")')
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_002 using st tags("dev_02", "tag_02")')
+
+        print("==============step2")
+
+        tdSql.execute(
+            """INSERT INTO dev_001 VALUES('2020-05-13 10:00:00.000', 1)('2020-05-13 10:00:00.005', 2)('2020-05-13 10:00:00.011', 3)
+            ('2020-05-13 10:00:01.011', 4)('2020-05-13 10:00:01.611', 5)('2020-05-13 10:00:02.612', 6)
+            ('2020-05-13 10:01:02.612', 7)('2020-05-13 10:02:02.612', 8)('2020-05-13 10:03:02.613', 9)
+            ('2020-05-13 11:00:00.000', 10)('2020-05-13 12:00:00.000', 11)('2020-05-13 13:00:00.001', 12)
+            ('2020-05-14 13:00:00.001', 13)('2020-05-15 14:00:00.000', 14)('2020-05-20 10:00:00.000', 15)
+            ('2020-05-27 10:00:00.001', 16) dev_002 VALUES('2020-05-13 10:00:00.000', 1)('2020-05-13 10:00:00.005', 2)('2020-05-13 10:00:00.009', 3)('2020-05-13 10:00:00.0021', 4)
+            ('2020-05-13 10:00:00.031', 5)('2020-05-13 10:00:00.036', 6)('2020-05-13 10:00:00.51', 7)
+            """)
+
+        # session(ts,5a)
+        tdSql.query("select count(*) from dev_001 session(ts,5a)")
+        tdSql.checkRows(15)
+        tdSql.checkData(0, 1, 2)
+
+
+        # session(ts,1s)
+        tdSql.query("select count(*) from dev_001 session(ts,1s)")
+        tdSql.checkRows(12)
+        tdSql.checkData(0, 1, 5)
+
+        tdSql.query("select count(*) from dev_001 session(ts,1000a)")
+        tdSql.checkRows(12)
+        tdSql.checkData(0, 1, 5)
+
+        # session(ts,1m)
+        tdSql.query("select count(*) from dev_001 session(ts,1m)")
+        tdSql.checkRows(9)
+        tdSql.checkData(0, 1, 8)
+
+        # session(ts,1h)
+        tdSql.query("select count(*) from dev_001 session(ts,1h)")
+        tdSql.checkRows(6)
+        tdSql.checkData(0, 1, 11)
+
+        # session(ts,1d)
+        tdSql.query("select count(*) from dev_001 session(ts,1d)")
+        tdSql.checkRows(4)
+        tdSql.checkData(0, 1, 13)
+
+        # session(ts,1w)
+        tdSql.query("select count(*) from dev_001 session(ts,1w)")
+        tdSql.checkRows(2)
+        tdSql.checkData(0, 1, 15)
+
+        # session with where 
+        tdSql.query("select count(*),first(tagtype),last(tagtype),avg(tagtype),sum(tagtype),min(tagtype),max(tagtype),leastsquares(tagtype, 1, 1),spread(tagtype)  from dev_001 where ts <'2020-05-20 0:0:0' session(ts,1d)")
+        tdSql.checkRows(2)
+        tdSql.checkData(0, 1, 13)
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(0, 3, 13)
+        tdSql.checkData(0, 4, 7)
+        tdSql.checkData(0, 5, 91)
+        tdSql.checkData(0, 6, 1)
+        tdSql.checkData(0, 7, 13)
+        tdSql.checkData(0, 8, '{slop:1.000000, intercept:0.000000}')
+        tdSql.checkData(0, 9, 12)
+
+        # tdsql err
+        tdSql.error("select * from dev_001 session(ts,1w)")
+        tdSql.error("select count(*) from st session(ts,1w)")
+        tdSql.error("select count(*) from dev_001 group by tagtype session(ts,1w) ")
+        tdSql.error("select count(*) from dev_001 session(ts,1n)")
+        tdSql.error("select count(*) from dev_001 session(ts,1y)")
+        tdSql.error("select count(*) from dev_001 session(ts,0s)")
+        tdSql.error("select count(*) from dev_001 session(i,1y)")
+        tdSql.error("select count(*) from dev_001 session(ts,1d) where ts <'2020-05-20 0:0:0'")
+
+        #test precision us 
+        tdSql.execute("create database test precision 'us'")
+        tdSql.execute("use test")
+        tdSql.execute("create table dev_001 (ts timestamp ,i timestamp ,j int)")
+        tdSql.execute("insert into dev_001 values(1623046993681000,now,1)(1623046993681001,now+1s,2)(1623046993681002,now+2s,3)(1623046993681004,now+5s,4)")
+
+        # session(ts,1u)
+        tdSql.query("select count(*) from dev_001 session(ts,1u)")
+        tdSql.checkRows(2)
+        tdSql.checkData(0, 1, 3)
+        tdSql.error("select count(*) from dev_001 session(i,1s)")
+        
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())