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| author | Sally McNichols <sally.mcnichols@mongodb.com> | 2016-07-26 17:52:36 -0400 |
|---|---|---|
| committer | Sally McNichols <sally.mcnichols@mongodb.com> | 2016-07-26 17:52:36 -0400 |
| commit | 39d63ea21d7236a88616e89cb8381b34414ac349 (patch) | |
| tree | 2acb3ee8c69049c8edb467e9ee122360c945c600 /src/mongo/db/pipeline/accumulator.h | |
| parent | f22f6e220e5471c0876938bd0812ffa62901e3a7 (diff) | |
| download | mongo-39d63ea21d7236a88616e89cb8381b34414ac349.tar.gz | |
SERVER-24152 add $bucketAuto aggregation stage
Diffstat (limited to 'src/mongo/db/pipeline/accumulator.h')
| -rw-r--r-- | src/mongo/db/pipeline/accumulator.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/accumulator.h b/src/mongo/db/pipeline/accumulator.h index 81b84bf1982..eba774295f2 100644 --- a/src/mongo/db/pipeline/accumulator.h +++ b/src/mongo/db/pipeline/accumulator.h @@ -37,6 +37,7 @@ #include "mongo/base/init.h" #include "mongo/bson/bsontypes.h" +#include "mongo/db/pipeline/expression.h" #include "mongo/db/pipeline/expression_context.h" #include "mongo/db/pipeline/value.h" #include "mongo/db/pipeline/value_comparator.h" @@ -103,6 +104,13 @@ public: */ static Factory getFactory(StringData name); + /** + * Parses a BSONElement that is an accumulator field, and returns a pair containing (field name, + * accumulator expression). + */ + static std::pair<StringData, boost::intrusive_ptr<Expression>> parseAccumulator( + const BSONElement& elem, const VariablesParseState& vps); + virtual bool isAssociative() const { return false; } |