Create q2b.gsql

demos/guru_scripts/docker/tutorial/4.x/script/q2b.gsql

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+USE GRAPH financialGraph
+
+CREATE OR REPLACE QUERY q2b () SYNTAX v3 {
+
+  //think the FROM clause is a matched table with columns (a, e, b)
+  //you can use SQL syntax to group by the source and target account, and sum the total transfer amount
+  SELECT a, b, sum(e.amount)  INTO T
+  FROM (a:Account)-[e:transfer]->(b:Account)
+  GROUP BY a, b;
+
+  //output the table in JSON format
+  PRINT T;
+
+}
+
+#compile and install the query as a stored procedure
+install query q2b
+
+#run the query
+run query q2b()