Create c7.cypher

demos/guru_scripts/docker/tutorial/4.x/cypher/c7.cypher

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+USE GRAPH financialGraph
+
+// create a query
+CREATE OR REPLACE OPENCYPHER QUERY c7 (datetime low, datetime high, string accntName) {
+
+   // a path pattern in ascii art () -[]->()-[]->()
+   // think the MATCH clause is a matched table with columns (a, e, b, e2, c)
+   // you can use SQL syntax to group by on the matched table
+   // Below query find 2-hop reachable account c from a, and group by the path a, b, c
+   // find out how much each hop's total transfer amount.
+   MATCH (a:Account)-[e:transfer]->(b)-[e2:transfer]->(c:Account)
+   WHERE e.date >= $low AND e.date <= $high
+   RETURN a, b, c, sum(DISTINCT e.amount) AS hop_1_sum,  sum(DISTINCT e2.amount) AS hop_2_sum   
+   
+}
+
+install query c7
+
+run query c7("2024-01-01", "2024-12-31", "Scott")