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authorCharlie Swanson <charlie.swanson@mongodb.com>2015-07-17 22:42:31 -0400
committerCharlie Swanson <charlie.swanson@mongodb.com>2015-07-20 15:40:54 -0400
commit824776f67165d4ee0447c1e855dcd8a79643b73c (patch)
treee7f1968d0a75d3b0f3e8c2af6c0c02af138fecae /src/mongo/db/pipeline/expression.h
parent75a73c76f2304e89ab9f7e611f9ba82a07de520e (diff)
downloadmongo-824776f67165d4ee0447c1e855dcd8a79643b73c.tar.gz
$sample
Conflicts: src/mongo/db/pipeline/document_source.h src/mongo/db/pipeline/document_source_test.cpp
Diffstat (limited to 'src/mongo/db/pipeline/expression.h')
-rw-r--r--src/mongo/db/pipeline/expression.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/expression.h b/src/mongo/db/pipeline/expression.h
index c386cbe80b3..b4caa27ae52 100644
--- a/src/mongo/db/pipeline/expression.h
+++ b/src/mongo/db/pipeline/expression.h
@@ -795,6 +795,16 @@ public:
void addDependencies(DepsTracker* deps, std::vector<std::string>* path = NULL) const final;
static boost::intrusive_ptr<Expression> parse(BSONElement expr, const VariablesParseState& vps);
+
+private:
+ enum MetaType {
+ TEXT_SCORE,
+ RAND_VAL,
+ };
+
+ ExpressionMeta(MetaType metaType);
+
+ MetaType _metaType;
};
class ExpressionMillisecond final : public ExpressionFixedArity<ExpressionMillisecond, 1> {