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Diffstat (limited to 'src/mongo/db/update/update_driver.cpp')
| -rw-r--r-- | src/mongo/db/update/update_driver.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mongo/db/update/update_driver.cpp b/src/mongo/db/update/update_driver.cpp index 7eb4f4ffd7c..5380de021ae 100644 --- a/src/mongo/db/update/update_driver.cpp +++ b/src/mongo/db/update/update_driver.cpp @@ -288,6 +288,8 @@ Status UpdateDriver::populateDocumentWithQueryFields(OperationContext* opCtx, auto qr = stdx::make_unique<QueryRequest>(NamespaceString("")); qr->setFilter(query); const boost::intrusive_ptr<ExpressionContext> expCtx; + // $expr is not allowed in the query for an upsert, since it is not clear what the equality + // extraction behavior for $expr should be. auto statusWithCQ = CanonicalQuery::canonicalize(opCtx, std::move(qr), |