add td-13946 test cases

tests/develop-test/2-query/TD-13946.py

+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import tdDnodes
+from math import inf
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<shenglian zhou>: [TD-13946]core dump of sampling binary column so that when result from  vnode exceeds INT16_MAX bytes
+        '''
+        return
+    
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn 
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists td13946")
+        tdSql.execute("create database td13946")
+        tdSql.execute("use td13946")
+
+        tdSql.execute("create table st ( ts timestamp, bin binary(100)) tags (t1 int)")
+        tdSql.execute("create table ct1 using st tags(1)")
+        tdSql.execute("create table ct2 using st tags(2)")
+
+        for i in range(0, 4000, 2):
+            tdSql.execute("insert into ct1 values(now + {}a, '{}')".format(i, i))
+            tdSql.execute("insert into ct2 values(now + {}a, '{}')".format(i+1, i+1))
+
+        tdSql.query("select sample(bin, 1000) from td13946.st group by tbname")
+
+        tdSql.execute('drop database td13946')
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+

tests/develop-test/fulltest-query.sh

@@ -18,3 +18,4 @@ python3 ./test.py -f 2-query/TD-13246.py
 python3 ./test.py -f 2-query/TD-6347.py
 python3 ./test.py -f 2-query/math_funcs.py
 python3 ./test.py -f 2-query/function_histogram.py
+python3 ./test.py -f 2-query/TD-13946.py

tests/parallel_test/cases.task

@@ -713,6 +713,7 @@
 5,,develop-test,python3 ./test.py -f 2-query/function_to_iso8601.py
 5,,develop-test,python3 ./test.py -f 2-query/function_to_unixtimestamp.py
 5,,develop-test,python3 ./test.py -f 2-query/time_window_keywords.py
+5,,develop-test,python3 ./test.py -f 2-query/TD-13946.py
 4,,system-test,python3 test.py -f 4-taosAdapter/TD-12163.py
 4,,system-test,python3 ./test.py -f 3-connectors/restful/restful_binddbname.py 
 4,,system-test,python3 ./test.py -f 2-query/TD-12614.py