test:add test case for bug fix about last_row

cdaf73f9 · wenzhouwww@live.cn · d355b12b · cdaf73f9
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tests/system-test/2-query/last_row.py tests/system-test/2-query/last_row.py +59 -0

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--- a/tests/system-test/2-query/last_row.py
+++ b/tests/system-test/2-query/last_row.py
@@ -290,6 +290,65 @@ class TDTestCase:
        tdSql.checkData(0, 0, None)
        tdSql.query("select last_row(c1) from testdb.stb1")
        tdSql.checkData(0, 0, None)
+        
+        # support regular query about last ,first ,last_row 
+        # tdSql.query("select last_row(c1,NULL) from testdb.t1")
+        # tdSql.checkData(0,0,None)
+        # tdSql.checkData(0,1,None)
+
+        # tdSql.query("select last_row(c1,123) from testdb.t1")
+        # tdSql.checkData(0,0,None)
+        # tdSql.checkData(0,1,123)
+
+        # tdSql.query("select last(c1,NULL) from testdb.t1")
+        # tdSql.checkData(0,0,9)
+        # tdSql.checkData(0,1,None)
+
+        # tdSql.query("select last(c1,123) from testdb.t1")
+        # tdSql.checkData(0,0,9)
+        # tdSql.checkData(0,1,123)
+
+        # tdSql.query("select first(c1,NULL) from testdb.t1")
+        # tdSql.checkData(0,0,1)
+        # tdSql.checkData(0,1,None)
+
+        # tdSql.query("select first(c1,123) from testdb.t1")
+        # tdSql.checkData(0,0,1)
+        # tdSql.checkData(0,1,123)
+
+        # tdSql.query("select last_row(c1,c2,c3,NULL,c4) from testdb.t1")
+        # tdSql.checkData(0,0,None)
+        # tdSql.checkData(0,1,None)
+        # tdSql.checkData(0,2,None)
+        # tdSql.checkData(0,3,None)
+        # tdSql.checkData(0,4,None)
+
+        # tdSql.query("select last_row(c1,c2,c3,123,c4) from testdb.t1")
+        # tdSql.checkData(0,0,None)
+        # tdSql.checkData(0,1,None)
+        # tdSql.checkData(0,2,None)
+        # tdSql.checkData(0,3,123)
+        # tdSql.checkData(0,4,None)
+        
+
+        # tdSql.query("select last_row(c1,c2,c3,NULL,c4,t1,t2) from testdb.ct1")
+        # tdSql.checkData(0,0,9)
+        # tdSql.checkData(0,1,-99999)
+        # tdSql.checkData(0,2,-999)
+        # tdSql.checkData(0,3,None)
+        # tdSql.checkData(0,4,None)
+        # tdSql.checkData(0,5,0)
+        # tdSql.checkData(0,5,0)
+
+        # tdSql.query("select last_row(c1,c2,c3,123,c4,t1,t2) from testdb.ct1")
+        # tdSql.checkData(0,0,9)
+        # tdSql.checkData(0,1,-99999)
+        # tdSql.checkData(0,2,-999)
+        # tdSql.checkData(0,3,123)
+        # tdSql.checkData(0,4,None)
+        # tdSql.checkData(0,5,0)
+        # tdSql.checkData(0,5,0)
+

        # # bug need fix
        tdSql.query("select last_row(c1), c2, c3 , c4, c5 from testdb.t1")