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| author | Yoonsoo Kim <yoonsoo.kim@mongodb.com> | 2021-09-20 16:22:16 +0000 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2021-09-20 17:10:45 +0000 |
| commit | fa121d14a011a5d7c9607b5df068bb61b81a2b0b (patch) | |
| tree | 1d924812790039c9e1735a420cfe4fbf8c5d0e6f /src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp | |
| parent | 7ee2e01e5d95a9b925fa1964b4f9f6151a9806bd (diff) | |
| download | mongo-fa121d14a011a5d7c9607b5df068bb61b81a2b0b.tar.gz | |
SERVER-60030 Fix group stage builder bugs
Diffstat (limited to 'src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp')
| -rw-r--r-- | src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp b/src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp index 958532ed927..382b954d707 100644 --- a/src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp +++ b/src/mongo/db/query/sbe_stage_builder_accumulator_test.cpp @@ -248,6 +248,28 @@ TEST_F(SbeStageBuilderGroupTest, TestGroupMultipleAccumulators) { << 3 << "firstb" << 3 << "lastb" << 3))); } +TEST_F(SbeStageBuilderGroupTest, AccSkippingFinalStepAfterAvg) { + auto docs = std::vector<BSONArray>{BSON_ARRAY(BSON("a" << 1 << "b" << 1)), + BSON_ARRAY(BSON("a" << 1 << "b" << 2)), + BSON_ARRAY(BSON("a" << 2 << "b" << 3))}; + runGroupAggregationTest(R"({_id: null, x: {$avg: "$b"}, y: {$last: "$b"}})", + docs, + BSON_ARRAY(BSON("_id" << BSONNULL << "x" << 6 / 3.0 << "y" << 3))); + // An accumulator skipping the final step after multiple $avg. + runGroupAggregationTest( + R"({_id: null, x: {$avg: "$b"}, y: {$avg: "$b"}, z: {$last: "$b"}})", + docs, + BSON_ARRAY(BSON("_id" << BSONNULL << "x" << 6 / 3.0 << "y" << 6 / 3.0 << "z" << 3))); +} + +TEST_F(SbeStageBuilderGroupTest, NullForMissingGroupBySlot) { + auto docs = std::vector<BSONArray>{BSON_ARRAY(BSON("a" << 1 << "b" << 1)), + BSON_ARRAY(BSON("a" << 2 << "b" << 3))}; + // _id: null is returned if the group-by field is missing. + runGroupAggregationTest( + R"({_id: "$z", x: {$first: "$b"}})", docs, BSON_ARRAY(BSON("_id" << BSONNULL << "x" << 1))); +} + TEST_F(SbeStageBuilderGroupTest, TestGroupNoAccumulators) { auto docs = std::vector<BSONArray>{BSON_ARRAY(BSON("a" << 1 << "b" << 1)), BSON_ARRAY(BSON("a" << 1 << "b" << 2)), |