diff options
Diffstat (limited to 'src/mongo/db/pipeline/pipeline_test.cpp')
| -rw-r--r-- | src/mongo/db/pipeline/pipeline_test.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/pipeline_test.cpp b/src/mongo/db/pipeline/pipeline_test.cpp index 2fc38946417..44d48015332 100644 --- a/src/mongo/db/pipeline/pipeline_test.cpp +++ b/src/mongo/db/pipeline/pipeline_test.cpp @@ -519,6 +519,24 @@ TEST(PipelineOptimizationTest, LookupShouldAbsorbUnwindMatch) { assertPipelineOptimizesAndSerializesTo(inputPipe, outputPipe, serializedPipe); } +TEST(PipelineOptimizationTest, LookupShouldAbsorbUnwindAndTypeMatch) { + string inputPipe = + "[{$lookup: {from: 'lookupColl', as: 'asField', localField: 'y', foreignField: " + "'z'}}, " + "{$unwind: '$asField'}, " + "{$match: {'asField.subfield': {$type: [2]}}}]"; + string outputPipe = + "[{$lookup: {from: 'lookupColl', as: 'asField', localField: 'y', foreignField: 'z', " + " unwinding: {preserveNullAndEmptyArrays: false}, " + " matching: {subfield: {$type: [2]}}}}]"; + string serializedPipe = + "[{$lookup: {from: 'lookupColl', as: 'asField', localField: 'y', foreignField: " + "'z'}}, " + "{$unwind: {path: '$asField'}}, " + "{$match: {'asField.subfield': {$type: [2]}}}]"; + assertPipelineOptimizesAndSerializesTo(inputPipe, outputPipe, serializedPipe); +} + TEST(PipelineOptimizationTest, LookupWithPipelineSyntaxShouldAbsorbUnwindMatch) { string inputPipe = "[{$lookup: {from: 'lookupColl', as: 'asField', pipeline: []}}, " |