commit 362b88484f0af649fd90f568b3e9aa3ae2539579
author Yingyi Bu <buyingyi@gmail.com> Mon May 26 00:01:18 2014 -0700
committer Ian Maxon <imaxon@uci.edu> Wed May 28 16:58:49 2014 -0800
tree 838e6cdd7e8a53299356c0988cfbfec82edde7dc
parent be353dd4a54e9e4e6f703b24f54dec16089d5eac

Support sort-based group-by, add test coverage for out-of-core code paths, and adapt to the new buffer cache interface.
-- add the support for sort-based group-by
-- add test coverages for disk-based code path, including multi-pass code paths
-- populate framesize and group-by buffer size into asterix
-- adapt to new interface for buffer cache

Change-Id: I4af9eaa6fa6a8ae76b8ecaa39184785a90b32710
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/36
Tested-by: Ian Maxon <imaxon@uci.edu>
Reviewed-by: Till Westmann <westmann@gmail.com>

asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan

diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan b/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
index 08ad861..c100a31 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
@@ -9,17 +9,15 @@
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                   }
             -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$24(ASC)] HASH:[$$24]  |PARTITIONED|
-              -- PRE_CLUSTERED_GROUP_BY[$$16]  |PARTITIONED|
+              -- SORT_GROUP_BY[$$16]  |PARTITIONED|
                       {
                         -- AGGREGATE  |LOCAL|
                           -- NESTED_TUPLE_SOURCE  |LOCAL|
                       }
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- ASSIGN  |PARTITIONED|
-                        -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- DATASOURCE_SCAN  |PARTITIONED|
-                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|