Improved rule matching for indexed NL joins using primary btree indexes (if hint was given). Fixed a few bugs in the access method rewrite rule. Added tests to guard against regressions.
git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization@855 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join.aql
new file mode 100644
index 0000000..1015e82
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join.aql
@@ -0,0 +1,57 @@
+/*
+ * Description : Equi joins two datasets, Customers and Orders, based on the customer id.
+ * Given the 'indexnl' hint we expect the join to be transformed
+ * into an indexed nested-loop join using Customers' primary index.
+ * Success : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+ number: int32,
+ street: string,
+ city: string
+}
+
+create type CustomerType as closed {
+ cid: int32,
+ name: string,
+ cashBack: int32,
+ age: int32?,
+ address: AddressType?,
+ lastorder: {
+ oid: int32,
+ total: float
+ }
+}
+
+create type OrderType as open {
+ oid: int32,
+ cid: int32,
+ orderstatus: string,
+ orderpriority: string,
+ clerk: string,
+ total: float,
+ items: [int32]
+}
+
+create dataset Customers(CustomerType) partitioned by key cid;
+create dataset Orders(OrderType) partitioned by key oid;
+
+load dataset Customers
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+
+load dataset Orders
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
+
+write output to nc1:"rttest/index-join_btree-primary-equi-join.adm";
+
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+where $c.cid /*+ indexnl */ = $o.cid
+order by $c.cid, $o.oid
+return {"cid":$c.cid, "oid": $o.oid}