diff options
Diffstat (limited to 'jstests/noPassthroughWithMongod/group_pushdown.js')
| -rw-r--r-- | jstests/noPassthroughWithMongod/group_pushdown.js | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/jstests/noPassthroughWithMongod/group_pushdown.js b/jstests/noPassthroughWithMongod/group_pushdown.js index 153bdc4dce2..ba7b51a7b44 100644 --- a/jstests/noPassthroughWithMongod/group_pushdown.js +++ b/jstests/noPassthroughWithMongod/group_pushdown.js @@ -277,6 +277,19 @@ assertGroupPushdown(coll, [{$group: {_id: {"i": "$item"}, s: {$sum: "$price"}}}], [{_id: {i: "a"}, s: 15}, {_id: {i: "b"}, s: 30}, {_id: {i: "c"}, s: 5}]); +// Test that we can push down a $group and a projection. +assertGroupPushdown( + coll, + [{$project: {_id: 0, item: 1, price: 1}}, {$group: {_id: {i: "$item"}, s: {$sum: "$price"}}}], + [{_id: {i: "a"}, s: 15}, {_id: {i: "b"}, s: 30}, {_id: {i: "c"}, s: 5}]); + +// Test that the results are as expected if the projection comes first and removes a field that the +// $group stage needs. +assertGroupPushdown( + coll, + [{$project: {_id: 0, item: 1}}, {$group: {_id: {i: "$item"}, s: {$sum: "$price"}}}], + [{_id: {i: "a"}, s: 0}, {_id: {i: "b"}, s: 0}, {_id: {i: "c"}, s: 0}]); + // Run a group with spilling on and check that $group is pushed down. assertGroupPushdown(coll, [{$group: {_id: "$item", s: {$sum: "$price"}}}], |