Create q7.gsql

demos/guru_scripts/docker/tutorial/4.x/script/q7.gsql

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+USE GRAPH financialGraph
+
+CREATE OR REPLACE QUERY q7 () SYNTAX V3 {
+
+    SumAccum<INT> @cnt = 0; //local accumulator
+    SumAccum<INT>  @@testCnt1 = 0; //global accumulator
+    SumAccum<INT>  @@testCnt2 = 0; //global accumulator
+
+   S = SELECT a
+       FROM (a:Account) ~ [e:hasPhone] ~ (p:Phone)
+       WHERE a.isBlocked == TRUE
+       //a.@cnt snapshot value is 0
+       ACCUM  a.@cnt +=1, //add 1 to a.@cnt
+              @@testCnt1+= a.@cnt //access a.@cnt snapshot value 0
+       POST-ACCUM (a) //loop vertex “a” set.
+          @@testCnt2 += a.@cnt; //access a.@cnt new snapshot value 1
+
+
+   PRINT @@testCnt1;
+   PRINT @@testCnt2;
+   PRINT S;
+
+}
+
+INTERPRET QUERY q7()