Merge pull request #24381 from taosdata/TEST/3.0/TD-28164

add test cases for TD-28164

tests/parallel_test/cases.task

@@ -546,6 +546,7 @@ e
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/projectionDesc.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/ts_3405_3398_3423.py -N 3 -n 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/ts-4348-td-27939.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/backslash_g.py
 
 ,,n,system-test,python3 ./test.py -f 2-query/queryQnode.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 6-cluster/5dnode1mnode.py

tests/system-test/2-query/backslash_g.py

@@ -0,0 +1,72 @@
+
+import taos
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+
+class TDTestCase:
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor(), True)
+
+    def checksql(self, sql):
+        result = os.popen(f"taos -s \"{sql}\" ")
+        res = result.read()
+        print(res)
+        if ("Query OK" in res):
+            tdLog.info(f"checkEqual success")
+        else :
+            tdLog.exit(f"checkEqual error")
+
+    def td_28164(self):
+        tdSql.execute("drop database if exists td_28164;")
+        tdSql.execute("create database td_28164;")
+        tdSql.execute("create table td_28164.test (ts timestamp, name varchar(10));")
+        tdSql.execute("insert into td_28164.test values (now(), 'ac\\\\G') (now() + 1s, 'ac\\\\G') (now()+2s, 'ac\\G') (now()+3s, 'acG') (now()+4s, 'acK') ;")
+
+        tdSql.query(f"select * from td_28164.test;")
+        tdSql.checkRows(5)
+
+        tdSql.query(f"select * from td_28164.test where name like 'ac\\\\\\G';")
+        tdSql.checkRows(2)
+
+        tdSql.query(f"select * from td_28164.test where name like 'ac\\\\G';")
+        tdSql.checkRows(2)
+
+        tdSql.query(f"select * from td_28164.test where name like 'ac\\G';")
+        tdSql.checkRows(2)
+
+        # tdSql.query(f"select * from td_28164.test where name like 'ac\\\g';")
+        # tdSql.checkRows(0)
+        #
+        # tdSql.query(f"select * from td_28164.test where name like 'ac\\g';")
+        # tdSql.checkRows(0)
+
+        self.checksql(f'select * from td_28164.test where name like \'ac\\G\'\G;')
+        # tdSql.checkRows(2)
+
+        self.checksql(f"select * from td_28164.test where name like \'ac\\G\'   \G;")
+        # tdSql.checkRows(2)
+
+        tdSql.query(f"select * from td_28164.test where name like 'ac/\\G';")
+        tdSql.checkRows(0)
+
+        tdSql.query(f"select * from td_28164.test where name like 'ac/G';")
+        tdSql.checkRows(0)
+
+    def run(self):
+        # tdSql.prepare()
+        self.td_28164()
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())