diff options
| author | Charlie Swanson <charlie.swanson@mongodb.com> | 2015-05-12 12:59:23 -0400 |
|---|---|---|
| committer | Charlie Swanson <charlie.swanson@mongodb.com> | 2015-05-12 16:42:45 -0400 |
| commit | b94f71a5dfa687aef2aa1af83e797683f9ad7476 (patch) | |
| tree | c219f9bde1d327989d593e210261f187576ffcce /src/mongo/db/pipeline/document_source_match.cpp | |
| parent | 3341d6407fb8ba147303432027db0ed006a85c46 (diff) | |
| download | mongo-b94f71a5dfa687aef2aa1af83e797683f9ad7476.tar.gz | |
SERVER-14608 Optimize out empty match stage in aggregation pipeline
Diffstat (limited to 'src/mongo/db/pipeline/document_source_match.cpp')
| -rw-r--r-- | src/mongo/db/pipeline/document_source_match.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/document_source_match.cpp b/src/mongo/db/pipeline/document_source_match.cpp index ab2784acb97..b6c6e005446 100644 --- a/src/mongo/db/pipeline/document_source_match.cpp +++ b/src/mongo/db/pipeline/document_source_match.cpp @@ -53,6 +53,10 @@ namespace mongo { return Value(DOC(getSourceName() << Document(getQuery()))); } + intrusive_ptr<DocumentSource> DocumentSourceMatch::optimize() { + return getQuery().isEmpty() ? nullptr : this; + } + boost::optional<Document> DocumentSourceMatch::getNext() { pExpCtx->checkForInterrupt(); |