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Diffstat (limited to 'src/mongo/db/pipeline/expression.cpp')
-rw-r--r-- | src/mongo/db/pipeline/expression.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/expression.cpp b/src/mongo/db/pipeline/expression.cpp index 932c8404210..83fe6400e20 100644 --- a/src/mongo/db/pipeline/expression.cpp +++ b/src/mongo/db/pipeline/expression.cpp @@ -2649,6 +2649,21 @@ std::unique_ptr<Expression> ExpressionFieldPath::copyWithSubstitution( return nullptr; } +bool ExpressionFieldPath::isRenameableByAnyPrefixNameIn( + const StringMap<std::string>& renameList) const { + if (_variable != Variables::kRootId || _fieldPath.getPathLength() == 1) { + return false; + } + + FieldRef path(getFieldPathWithoutCurrentPrefix().fullPath()); + for (const auto& rename : renameList) { + if (FieldRef oldName(rename.first); oldName.isPrefixOfOrEqualTo(path)) { + return true; + } + } + return false; +} + monotonic::State ExpressionFieldPath::getMonotonicState(const FieldPath& sortedFieldPath) const { return getFieldPathWithoutCurrentPrefix() == sortedFieldPath ? monotonic::State::Increasing : monotonic::State::NonMonotonic; |