Merge branch 'project-pineapples' of github.com:memgraph/memgraph into tyler_rename_ShardRequestManager_to_RequestRouter

.github/workflows/diff.yaml

@@ -99,7 +99,7 @@ jobs:
             echo ${file}
             if [[ ${file} == *.py ]]; then
               python3 -m black --check --diff ${file}
-              python3 -m isort --check-only --diff ${file}
+              python3 -m isort --check-only --profile "black" --diff ${file}
             fi
           done
 

.pre-commit-config.yaml

@@ -14,6 +14,7 @@ repos:
     hooks:
       - id: isort
         name: isort (python)
+        args: ["--profile", "black"]
   - repo: https://github.com/pre-commit/mirrors-clang-format
     rev: v13.0.0
     hooks:

src/CMakeLists.txt

@@ -21,6 +21,7 @@ add_subdirectory(auth)
 add_subdirectory(parser)
 add_subdirectory(expr)
 add_subdirectory(coordinator)
+add_subdirectory(functions)
 
 if (MG_ENTERPRISE)
   add_subdirectory(audit)

src/expr/CMakeLists.txt

@@ -17,4 +17,4 @@ target_include_directories(mg-expr PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_include_directories(mg-expr PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/ast)
 target_include_directories(mg-expr PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/interpret)
 target_include_directories(mg-expr PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/semantic)
-target_link_libraries(mg-expr cppitertools Boost::headers mg-utils mg-parser)
+target_link_libraries(mg-expr cppitertools Boost::headers mg-utils mg-parser mg-functions)

src/expr/interpret/eval.hpp

@@ -24,6 +24,7 @@
 #include "expr/exceptions.hpp"
 #include "expr/interpret/frame.hpp"
 #include "expr/semantic/symbol_table.hpp"
+#include "functions/awesome_memgraph_functions.hpp"
 #include "utils/exceptions.hpp"
 
 namespace memgraph::expr {
@@ -427,8 +428,7 @@ class ExpressionEvaluator : public ExpressionVisitor<TypedValue> {
             typename TReturnType = std::enable_if_t<std::is_same_v<TTag, QueryEngineTag>, bool>>
   TReturnType HasLabelImpl(const VertexAccessor &vertex, const LabelIx &label_ix, QueryEngineTag /*tag*/) {
     auto label = typename VertexAccessor::Label{LabelId::FromUint(label_ix.ix)};
-    auto has_label = vertex.HasLabel(label);
-    return !has_label;
+    return vertex.HasLabel(label);
   }
 
   TypedValue Visit(LabelsTest &labels_test) override {
@@ -491,7 +491,7 @@ class ExpressionEvaluator : public ExpressionVisitor<TypedValue> {
   }
 
   TypedValue Visit(Function &function) override {
-    FunctionContext function_ctx{dba_, ctx_->memory, ctx_->timestamp, &ctx_->counters, view_};
+    functions::FunctionContext<DbAccessor> function_ctx{dba_, ctx_->memory, ctx_->timestamp, &ctx_->counters, view_};
     // Stack allocate evaluated arguments when there's a small number of them.
     if (function.arguments_.size() <= 8) {
       TypedValue arguments[8] = {TypedValue(ctx_->memory), TypedValue(ctx_->memory), TypedValue(ctx_->memory),

src/functions/CMakeLists.txt

@@ -0,0 +1 @@
+add_library(mg-functions INTERFACE)

src/query/v2/CMakeLists.txt

@@ -11,7 +11,6 @@ set(mg_query_v2_sources
     cypher_query_interpreter.cpp
     frontend/semantic/required_privileges.cpp
     frontend/stripped.cpp
-    interpret/awesome_memgraph_functions.cpp
     interpreter.cpp
     metadata.cpp
     plan/operator.cpp
@@ -34,7 +33,7 @@ target_include_directories(mg-query-v2 PUBLIC ${CMAKE_SOURCE_DIR}/include)
 target_include_directories(mg-query-v2 PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/bindings)
 target_link_libraries(mg-query-v2 dl cppitertools Boost::headers)
 target_link_libraries(mg-query-v2 mg-integrations-pulsar mg-integrations-kafka mg-storage-v3 mg-license mg-utils mg-kvstore mg-memory mg-coordinator)
-target_link_libraries(mg-query-v2 mg-expr)
+target_link_libraries(mg-query-v2 mg-expr mg-functions)
 
 if(NOT "${MG_PYTHON_PATH}" STREQUAL "")
     set(Python3_ROOT_DIR "${MG_PYTHON_PATH}")

src/query/v2/accessors.cpp

@@ -23,11 +23,12 @@ EdgeTypeId EdgeAccessor::EdgeType() const { return edge.type.id; }
 const std::vector<std::pair<PropertyId, Value>> &EdgeAccessor::Properties() const { return edge.properties; }
 
 Value EdgeAccessor::GetProperty(const std::string &prop_name) const {
-  auto prop_id = request_router_->NameToProperty(prop_name);
-  auto it = std::find_if(edge.properties.begin(), edge.properties.end(), [&](auto &pr) { return prop_id == pr.first; });
-  if (it == edge.properties.end()) {
+  auto maybe_prop = request_router_->MaybeNameToProperty(prop_name);
+  if (!maybe_prop) {
     return {};
   }
+  const auto prop_id = *maybe_prop;
+  auto it = std::find_if(edge.properties.begin(), edge.properties.end(), [&](auto &pr) { return prop_id == pr.first; });
   return it->second;
 }
 
@@ -35,6 +36,8 @@ const Edge &EdgeAccessor::GetEdge() const { return edge; }
 
 bool EdgeAccessor::IsCycle() const { return edge.src == edge.dst; };
 
+size_t EdgeAccessor::CypherId() const { return edge.id.gid; }
+
 VertexAccessor EdgeAccessor::To() const {
   return VertexAccessor(Vertex{edge.dst}, std::vector<std::pair<PropertyId, msgs::Value>>{}, request_router_);
 }
@@ -88,7 +91,11 @@ Value VertexAccessor::GetProperty(PropertyId prop_id) const {
 
 // NOLINTNEXTLINE(readability-convert-member-functions-to-static)
 Value VertexAccessor::GetProperty(const std::string &prop_name) const {
-  return GetProperty(request_router_->NameToProperty(prop_name));
+  auto maybe_prop = request_router_->MaybeNameToProperty(prop_name);
+  if (!maybe_prop) {
+    return {};
+  }
+  return GetProperty(*maybe_prop);
 }
 
 msgs::Vertex VertexAccessor::GetVertex() const { return vertex; }

src/query/v2/accessors.hpp

@@ -53,12 +53,7 @@ class EdgeAccessor final {
 
   [[nodiscard]] bool IsCycle() const;
 
-  // Dummy function
-  // NOLINTNEXTLINE(readability-convert-member-functions-to-static)
-  [[nodiscard]] size_t CypherId() const { return 10; }
-
-  //  bool HasSrcAccessor const { return src == nullptr; }
-  //  bool HasDstAccessor const { return dst == nullptr; }
+  [[nodiscard]] size_t CypherId() const;
 
   [[nodiscard]] VertexAccessor To() const;
   [[nodiscard]] VertexAccessor From() const;
@@ -98,48 +93,11 @@ class VertexAccessor final {
 
   [[nodiscard]] msgs::Vertex GetVertex() const;
 
-  // Dummy function
   // NOLINTNEXTLINE(readability-convert-member-functions-to-static)
-  [[nodiscard]] size_t CypherId() const { return 10; }
+  [[nodiscard]] size_t InDegree() const { throw utils::NotYetImplemented("InDegree() not yet implemented"); }
 
-  //  auto InEdges(storage::View view, const std::vector<storage::EdgeTypeId> &edge_types) const
-  //      -> storage::Result<decltype(iter::imap(MakeEdgeAccessor, *impl_.InEdges(view)))> {
-  //    auto maybe_edges = impl_.InEdges(view, edge_types);
-  //    if (maybe_edges.HasError()) return maybe_edges.GetError();
-  //    return iter::imap(MakeEdgeAccessor, std::move(*maybe_edges));
-  //  }
-  //
-  //  auto InEdges(storage::View view) const { return InEdges(view, {}); }
-  //
-  //  auto InEdges(storage::View view, const std::vector<storage::EdgeTypeId> &edge_types, const VertexAccessor &dest)
-  //  const
-  //      -> storage::Result<decltype(iter::imap(MakeEdgeAccessor, *impl_.InEdges(view)))> {
-  //    auto maybe_edges = impl_.InEdges(view, edge_types, &dest.impl_);
-  //    if (maybe_edges.HasError()) return maybe_edges.GetError();
-  //    return iter::imap(MakeEdgeAccessor, std::move(*maybe_edges));
-  //  }
-  //
-  //  auto OutEdges(storage::View view, const std::vector<storage::EdgeTypeId> &edge_types) const
-  //      -> storage::Result<decltype(iter::imap(MakeEdgeAccessor, *impl_.OutEdges(view)))> {
-  //    auto maybe_edges = impl_.OutEdges(view, edge_types);
-  //    if (maybe_edges.HasError()) return maybe_edges.GetError();
-  //    return iter::imap(MakeEdgeAccessor, std::move(*maybe_edges));
-  //  }
-  //
-  //  auto OutEdges(storage::View view) const { return OutEdges(view, {}); }
-  //
-  //  auto OutEdges(storage::View view, const std::vector<storage::EdgeTypeId> &edge_types,
-  //                const VertexAccessor &dest) const
-  //      -> storage::Result<decltype(iter::imap(MakeEdgeAccessor, *impl_.OutEdges(view)))> {
-  //    auto maybe_edges = impl_.OutEdges(view, edge_types, &dest.impl_);
-  //    if (maybe_edges.HasError()) return maybe_edges.GetError();
-  //    return iter::imap(MakeEdgeAccessor, std::move(*maybe_edges));
-  //  }
-
-  //  storage::Result<size_t> InDegree(storage::View view) const { return impl_.InDegree(view); }
-  //
-  //  storage::Result<size_t> OutDegree(storage::View view) const { return impl_.OutDegree(view); }
-  //
+  // NOLINTNEXTLINE(readability-convert-member-functions-to-static)
+  [[nodiscard]] size_t OutDegree() const { throw utils::NotYetImplemented("OutDegree() not yet implemented"); }
 
   friend bool operator==(const VertexAccessor &lhs, const VertexAccessor &rhs) {
     return lhs.vertex == rhs.vertex && lhs.properties == rhs.properties;
@@ -153,10 +111,6 @@ class VertexAccessor final {
   const RequestRouterInterface *request_router_;
 };
 
-// inline VertexAccessor EdgeAccessor::To() const { return VertexAccessor(impl_.ToVertex()); }
-
-// inline VertexAccessor EdgeAccessor::From() const { return VertexAccessor(impl_.FromVertex()); }
-
 // Highly mocked interface. Won't work if used.
 class Path {
  public:
@@ -197,7 +151,14 @@ class Path {
   friend bool operator==(const Path & /*lhs*/, const Path & /*rhs*/) { return true; };
   utils::MemoryResource *GetMemoryResource() { return mem; }
 
+  auto &vertices() { return vertices_; }
+  auto &edges() { return edges_; }
+  const auto &vertices() const { return vertices_; }
+  const auto &edges() const { return edges_; }
+
  private:
+  std::vector<VertexAccessor> vertices_;
+  std::vector<EdgeAccessor> edges_;
   utils::MemoryResource *mem = utils::NewDeleteResource();
 };
 }  // namespace memgraph::query::v2::accessors

src/query/v2/bindings/eval.hpp

@@ -28,7 +28,6 @@ namespace memgraph::query::v2 {
 
 class RequestRouterInterface;
 
-inline const auto lam = [](const auto &val) { return ValueToTypedValue(val); };
 namespace detail {
 class Callable {
  public:

src/query/v2/conversions.hpp

@@ -56,6 +56,10 @@ inline TypedValue ValueToTypedValue(const msgs::Value &value, RequestRouterInter
   throw std::runtime_error("Incorrect type in conversion");
 }
 
+inline const auto ValueToTypedValueFunctor = [](const msgs::Value &value, RequestRouterInterface *request_router) {
+  return ValueToTypedValue(value, request_router);
+};
+
 inline msgs::Value TypedValueToValue(const TypedValue &value) {
   using Value = msgs::Value;
   switch (value.type()) {

src/query/v2/frontend/ast/ast.lcp

@@ -20,11 +20,13 @@
 #include "query/v2/bindings/ast_visitor.hpp"
 #include "common/types.hpp"
 #include "query/v2/bindings/symbol.hpp"
-#include "query/v2/interpret/awesome_memgraph_functions.hpp"
+#include "functions/awesome_memgraph_functions.hpp"
 #include "query/v2/bindings/typed_value.hpp"
 #include "query/v2/db_accessor.hpp"
 #include "query/v2/path.hpp"
+#include "query/v2/shard_request_manager.hpp"
 #include "utils/typeinfo.hpp"
+#include "query/v2/conversions.hpp"
 
 cpp<#
 
@@ -836,13 +838,15 @@ cpp<#
               :slk-load (slk-load-ast-vector "Expression"))
    (function-name "std::string" :scope :public)
    (function "std::function<TypedValue(const TypedValue *, int64_t,
-                                       const FunctionContext &)>"
+                                       const functions::FunctionContext<ShardRequestManagerInterface> &)>"
              :scope :public
              :dont-save t
              :clone :copy
              :slk-load (lambda (member)
                         #>cpp
-                        self->${member} = query::v2::NameToFunction(self->function_name_);
+                        self->${member} = functions::NameToFunction<TypedValue,
+                                            functions::FunctionContext<ShardRequestManagerInterface>,
+                                            functions::QueryEngineTag, decltype(ValueToTypedValueFunctor)>(self->function_name_);
                         cpp<#)))
   (:public
     #>cpp
@@ -865,7 +869,8 @@ cpp<#
              const std::vector<Expression *> &arguments)
         : arguments_(arguments),
           function_name_(function_name),
-          function_(NameToFunction(function_name_)) {
+          function_(functions::NameToFunction<TypedValue, functions::FunctionContext<ShardRequestManagerInterface>,
+                                              functions::QueryEngineTag, decltype(ValueToTypedValueFunctor)>(function_name_)) {
       if (!function_) {
         throw SemanticException("Function '{}' doesn't exist.", function_name);
       }

src/query/v2/plan/preprocess.cpp

@@ -398,7 +398,7 @@ void Filters::AnalyzeAndStoreFilter(Expression *expr, const SymbolTable &symbol_
   auto add_id_equal = [&](auto *maybe_id_fun, auto *val_expr) -> bool {
     auto *id_fun = utils::Downcast<Function>(maybe_id_fun);
     if (!id_fun) return false;
-    if (id_fun->function_name_ != kId) return false;
+    if (id_fun->function_name_ != functions::kId) return false;
     if (id_fun->arguments_.size() != 1U) return false;
     auto *ident = utils::Downcast<Identifier>(id_fun->arguments_.front());
     if (!ident) return false;

src/query/v2/request_router.hpp

@@ -125,9 +125,12 @@ class RequestRouterInterface {
   virtual storage::v3::EdgeTypeId NameToEdgeType(const std::string &name) const = 0;
   virtual storage::v3::PropertyId NameToProperty(const std::string &name) const = 0;
   virtual storage::v3::LabelId NameToLabel(const std::string &name) const = 0;
-  virtual const std::string &PropertyToName(storage::v3::PropertyId prop) const = 0;
-  virtual const std::string &LabelToName(storage::v3::LabelId label) const = 0;
-  virtual const std::string &EdgeTypeToName(storage::v3::EdgeTypeId type) const = 0;
+  virtual const std::string &PropertyToName(memgraph::storage::v3::PropertyId prop) const = 0;
+  virtual const std::string &LabelToName(memgraph::storage::v3::LabelId label) const = 0;
+  virtual const std::string &EdgeTypeToName(memgraph::storage::v3::EdgeTypeId type) const = 0;
+  virtual std::optional<storage::v3::PropertyId> MaybeNameToProperty(const std::string &name) const = 0;
+  virtual std::optional<storage::v3::EdgeTypeId> MaybeNameToEdgeType(const std::string &name) const = 0;
+  virtual std::optional<storage::v3::LabelId> MaybeNameToLabel(const std::string &name) const = 0;
   virtual bool IsPrimaryLabel(storage::v3::LabelId label) const = 0;
   virtual bool IsPrimaryKey(storage::v3::LabelId primary_label, storage::v3::PropertyId property) const = 0;
 };
@@ -351,6 +354,18 @@ class RequestRouter : public RequestRouterInterface {
     return result_rows;
   }
 
+  std::optional<storage::v3::PropertyId> MaybeNameToProperty(const std::string &name) const override {
+    return shards_map_.GetPropertyId(name);
+  }
+
+  std::optional<storage::v3::EdgeTypeId> MaybeNameToEdgeType(const std::string &name) const override {
+    return shards_map_.GetEdgeTypeId(name);
+  }
+
+  std::optional<storage::v3::LabelId> MaybeNameToLabel(const std::string &name) const override {
+    return shards_map_.GetLabelId(name);
+  }
+
  private:
   enum class PaginatedResponseState { Pending, PartiallyFinished };
 

src/storage/v3/CMakeLists.txt

@@ -31,4 +31,4 @@ target_link_libraries(mg-storage-v3 Threads::Threads mg-utils gflags)
 target_include_directories(mg-storage-v3 PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/bindings)
 
 add_dependencies(mg-storage-v3 generate_lcp_storage)
-target_link_libraries(mg-storage-v3 mg-slk mg-expr mg-io)
+target_link_libraries(mg-storage-v3 mg-slk mg-expr mg-io mg-functions)

src/storage/v3/bindings/ast/ast.lcp

@@ -24,6 +24,8 @@
 #include "storage/v3/conversions.hpp"
 #include "storage/v3/path.hpp"
 #include "utils/typeinfo.hpp"
+#include "utils/exceptions.hpp"
+#include "functions/awesome_memgraph_functions.hpp"
 
 cpp<#
 
@@ -178,14 +180,6 @@ cpp<#
   (:serialize (:slk :load-args '((storage "storage::v3::AstStorage *")))))
 
 #>cpp
-struct FunctionContext {
-  DbAccessor *db_accessor;
-  utils::MemoryResource *memory;
-  int64_t timestamp;
-  std::unordered_map<std::string, int64_t> *counters;
-  View view;
-};
-
 inline bool operator==(const LabelIx &a, const LabelIx &b) {
   return a.ix == b.ix && a.name == b.name;
 }
@@ -845,16 +839,24 @@ cpp<#
               :slk-load (slk-load-ast-vector "Expression"))
    (function-name "std::string" :scope :public)
    (function "std::function<TypedValue(const TypedValue *, int64_t,
-                                       const FunctionContext &)>"
+                                       const functions::FunctionContext<memgraph::storage::v3::DbAccessor> &)>"
              :scope :public
              :dont-save t
              :clone :copy
              :slk-load (lambda (member)
                         #>cpp
+                        self->${member} = functions::NameToFunction<memgraph::storage::v3::TypedValue,
+                                            functions::FunctionContext<memgraph::storage::v3::DbAccessor>,
+                                            functions::StorageEngineTag, Conv>(self->function_name_);
                         cpp<#)))
   (:public
     #>cpp
     Function() = default;
+    using Conv = decltype(PropertyToTypedValueFunctor<TypedValue>);
+    class SemanticException : public memgraph::utils::BasicException {
+      using utils::BasicException::BasicException;
+    };
+
 
     DEFVISITABLE(ExpressionVisitor<TypedValue>);
     DEFVISITABLE(ExpressionVisitor<void>);
@@ -872,7 +874,13 @@ cpp<#
     Function(const std::string &function_name,
              const std::vector<Expression *> &arguments)
         : arguments_(arguments),
-          function_name_(function_name) {
+          function_name_(function_name),
+          function_(functions::NameToFunction<memgraph::storage::v3::TypedValue,
+                                            functions::FunctionContext<memgraph::storage::v3::DbAccessor>,
+                                            functions::StorageEngineTag, Conv>(function_name_)) {
+      if (!function_) {
+        throw SemanticException("Function '{}' doesn't exist.", function_name);
+      }
     }
     cpp<#)
   (:private

src/storage/v3/bindings/db_accessor.hpp

@@ -88,7 +88,7 @@ class DbAccessor final {
   }
 
   storage::v3::ShardResult<std::optional<EdgeAccessor>> RemoveEdge(EdgeAccessor *edge) {
-    auto res = accessor_->DeleteEdge(edge->FromVertex(), edge->ToVertex(), edge->Gid());
+    auto res = accessor_->DeleteEdge(edge->From(), edge->To(), edge->Gid());
     if (res.HasError()) {
       return res.GetError();
     }

src/storage/v3/conversions.hpp

@@ -69,6 +69,10 @@ TTypedValue PropertyToTypedValue(const PropertyValue &value) {
   LOG_FATAL("Unsupported type");
 }
 
+template <typename TypedValueT>
+inline const auto PropertyToTypedValueFunctor =
+    [](const PropertyValue &value) { return PropertyToTypedValue<TypedValueT>(value); };
+
 template <typename TTypedValue>
 TTypedValue PropertyToTypedValue(const PropertyValue &value, utils::MemoryResource *mem) {
   switch (value.type()) {

src/storage/v3/edge_accessor.cpp

@@ -51,9 +51,9 @@ bool EdgeAccessor::IsVisible(const View view) const {
   return exists && (for_deleted_ || !deleted);
 }
 
-const VertexId &EdgeAccessor::FromVertex() const { return from_vertex_; }
+const VertexId &EdgeAccessor::From() const { return from_vertex_; }
 
-const VertexId &EdgeAccessor::ToVertex() const { return to_vertex_; }
+const VertexId &EdgeAccessor::To() const { return to_vertex_; }
 
 ShardResult<PropertyValue> EdgeAccessor::SetProperty(PropertyId property, const PropertyValue &value) {
   utils::MemoryTracker::OutOfMemoryExceptionEnabler oom_exception;
@@ -180,4 +180,7 @@ ShardResult<std::map<PropertyId, PropertyValue>> EdgeAccessor::Properties(View v
   return std::move(properties);
 }
 
+// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
+size_t EdgeAccessor::CypherId() const { return Gid().AsUint(); }
+
 }  // namespace memgraph::storage::v3

src/storage/v3/edge_accessor.hpp

@@ -48,9 +48,9 @@ class EdgeAccessor final {
   /// @return true if the object is visible from the current transaction
   bool IsVisible(View view) const;
 
-  const VertexId &FromVertex() const;
+  const VertexId &From() const;
 
-  const VertexId &ToVertex() const;
+  const VertexId &To() const;
 
   EdgeTypeId EdgeType() const { return edge_type_; }
 
@@ -84,6 +84,9 @@ class EdgeAccessor final {
   }
   bool operator!=(const EdgeAccessor &other) const noexcept { return !(*this == other); }
 
+  // Dummy function
+  size_t CypherId() const;
+
  private:
   EdgeRef edge_;
   EdgeTypeId edge_type_;

src/storage/v3/expr.cpp

@@ -52,13 +52,12 @@ msgs::Value ConstructValueEdge(const EdgeAccessor &acc, View view) {
   msgs::EdgeType type = {.id = acc.EdgeType()};
   msgs::EdgeId gid = {.gid = acc.Gid().AsUint()};
 
-  msgs::Label src_prim_label = {.id = acc.FromVertex().primary_label};
+  msgs::Label src_prim_label = {.id = acc.From().primary_label};
   memgraph::msgs::VertexId src_vertex =
-      std::make_pair(src_prim_label, conversions::ConvertValueVector(acc.FromVertex().primary_key));
+      std::make_pair(src_prim_label, conversions::ConvertValueVector(acc.From().primary_key));
 
-  msgs::Label dst_prim_label = {.id = acc.ToVertex().primary_label};
-  msgs::VertexId dst_vertex =
-      std::make_pair(dst_prim_label, conversions::ConvertValueVector(acc.ToVertex().primary_key));
+  msgs::Label dst_prim_label = {.id = acc.To().primary_label};
+  msgs::VertexId dst_vertex = std::make_pair(dst_prim_label, conversions::ConvertValueVector(acc.To().primary_key));
 
   auto properties = acc.Properties(view);
 

src/storage/v3/request_helper.cpp

@@ -257,7 +257,7 @@ EdgeUniquenessFunction InitializeEdgeUniquenessFunction(bool only_unique_neighbo
         case msgs::EdgeDirection::OUT: {
           is_edge_unique = [](std::set<const storage::v3::VertexId *, VertexIdCmpr> &other_vertex_set,
                               const storage::v3::EdgeAccessor &edge_acc) {
-            auto [it, insertion_happened] = other_vertex_set.insert(&edge_acc.ToVertex());
+            auto [it, insertion_happened] = other_vertex_set.insert(&edge_acc.To());
             return insertion_happened;
           };
           break;
@@ -265,7 +265,7 @@ EdgeUniquenessFunction InitializeEdgeUniquenessFunction(bool only_unique_neighbo
         case msgs::EdgeDirection::IN: {
           is_edge_unique = [](std::set<const storage::v3::VertexId *, VertexIdCmpr> &other_vertex_set,
                               const storage::v3::EdgeAccessor &edge_acc) {
-            auto [it, insertion_happened] = other_vertex_set.insert(&edge_acc.FromVertex());
+            auto [it, insertion_happened] = other_vertex_set.insert(&edge_acc.From());
             return insertion_happened;
           };
           break;
@@ -311,8 +311,8 @@ EdgeFiller InitializeEdgeFillerFunction(const msgs::ExpandOneRequest &req) {
         value_properties.insert(std::make_pair(prop_key, FromPropertyValueToValue(std::move(prop_val))));
       }
       using EdgeWithAllProperties = msgs::ExpandOneResultRow::EdgeWithAllProperties;
-      EdgeWithAllProperties edges{ToMsgsVertexId(edge.FromVertex()), msgs::EdgeType{edge.EdgeType()},
-                                  edge.Gid().AsUint(), std::move(value_properties)};
+      EdgeWithAllProperties edges{ToMsgsVertexId(edge.From()), msgs::EdgeType{edge.EdgeType()}, edge.Gid().AsUint(),
+                                  std::move(value_properties)};
       if (is_in_edge) {
         result_row.in_edges_with_all_properties.push_back(std::move(edges));
       } else {
@@ -336,7 +336,7 @@ EdgeFiller InitializeEdgeFillerFunction(const msgs::ExpandOneRequest &req) {
         value_properties.emplace_back(FromPropertyValueToValue(std::move(property_result.GetValue())));
       }
       using EdgeWithSpecificProperties = msgs::ExpandOneResultRow::EdgeWithSpecificProperties;
-      EdgeWithSpecificProperties edges{ToMsgsVertexId(edge.FromVertex()), msgs::EdgeType{edge.EdgeType()},
+      EdgeWithSpecificProperties edges{ToMsgsVertexId(edge.From()), msgs::EdgeType{edge.EdgeType()},
                                        edge.Gid().AsUint(), std::move(value_properties)};
       if (is_in_edge) {
         result_row.in_edges_with_specific_properties.push_back(std::move(edges));

src/storage/v3/shard.cpp

@@ -442,7 +442,7 @@ ShardResult<std::optional<std::pair<VertexAccessor, std::vector<EdgeAccessor>>>>
   for (const auto &item : in_edges) {
     auto [edge_type, from_vertex, edge] = item;
     EdgeAccessor e(edge, edge_type, from_vertex, vertex_id, transaction_, &shard_->indices_, config_);
-    auto ret = DeleteEdge(e.FromVertex(), e.ToVertex(), e.Gid());
+    auto ret = DeleteEdge(e.From(), e.To(), e.Gid());
     if (ret.HasError()) {
       MG_ASSERT(ret.GetError() == common::ErrorCode::SERIALIZATION_ERROR, "Invalid database state!");
       return ret.GetError();
@@ -455,7 +455,7 @@ ShardResult<std::optional<std::pair<VertexAccessor, std::vector<EdgeAccessor>>>>
   for (const auto &item : out_edges) {
     auto [edge_type, to_vertex, edge] = item;
     EdgeAccessor e(edge, edge_type, vertex_id, to_vertex, transaction_, &shard_->indices_, config_);
-    auto ret = DeleteEdge(e.FromVertex(), e.ToVertex(), e.Gid());
+    auto ret = DeleteEdge(e.From(), e.To(), e.Gid());
     if (ret.HasError()) {
       MG_ASSERT(ret.GetError() == common::ErrorCode::SERIALIZATION_ERROR, "Invalid database state!");
       return ret.GetError();

tests/e2e/distributed_queries/CMakeLists.txt

@@ -9,3 +9,4 @@ distributed_queries_e2e_python_files(order_by_and_limit.py)
 distributed_queries_e2e_python_files(distinct.py)
 distributed_queries_e2e_python_files(optional_match.py)
 distributed_queries_e2e_python_files(common.py)
+distributed_queries_e2e_python_files(awesome_memgraph_functions.py)

tests/e2e/distributed_queries/awesome_memgraph_functions.py

@@ -0,0 +1,93 @@
+# Copyright 2022 Memgraph Ltd.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+# License, and you may not use this file except in compliance with the Business Source License.
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0, included in the file
+# licenses/APL.txt.
+
+import sys
+
+import mgclient
+import pytest
+
+from common import (
+    connection,
+    execute_and_fetch_all,
+    has_n_result_row,
+    wait_for_shard_manager_to_initialize,
+)
+
+
+def test_awesome_memgraph_functions(connection):
+    wait_for_shard_manager_to_initialize()
+    cursor = connection.cursor()
+
+    assert has_n_result_row(cursor, "CREATE (n :label {property:1})", 0)
+    assert has_n_result_row(cursor, "CREATE (n :label {property:2})", 0)
+    assert has_n_result_row(cursor, "CREATE (n :label {property:3})", 0)
+    assert has_n_result_row(cursor, "CREATE (n :label {property:4})", 0)
+    assert has_n_result_row(cursor, "CREATE (n :label {property:10})", 0)
+
+    results = execute_and_fetch_all(cursor, "MATCH (n) WITH COLLECT(n) as nn RETURN SIZE(nn)")
+    assert len(results) == 1
+    assert results[0][0] == 5
+
+    results = execute_and_fetch_all(cursor, "MATCH (n) WITH COLLECT(n.property) as nn RETURN ALL(i IN nn WHERE i > 0)")
+    assert len(results) == 1
+    assert results[0][0] == True
+
+    results = execute_and_fetch_all(cursor, """RETURN CONTAINS("Pineapple", "P")""")
+    assert len(results) == 1
+    assert results[0][0] == True
+
+    results = execute_and_fetch_all(cursor, """RETURN ENDSWITH("Pineapple", "e")""")
+    assert len(results) == 1
+    assert results[0][0] == True
+
+    results = execute_and_fetch_all(cursor, """RETURN LEFT("Pineapple", 1)""")
+    assert len(results) == 1
+    assert results[0][0] == "P"
+
+    results = execute_and_fetch_all(cursor, """RETURN RIGHT("Pineapple", 1)""")
+    assert len(results) == 1
+    assert results[0][0] == "e"
+
+    results = execute_and_fetch_all(cursor, """RETURN REVERSE("Apple")""")
+    assert len(results) == 1
+    assert results[0][0] == "elppA"
+
+    results = execute_and_fetch_all(cursor, """RETURN REPLACE("Apple", "A", "a")""")
+    assert len(results) == 1
+    assert results[0][0] == "apple"
+
+    results = execute_and_fetch_all(cursor, """RETURN TOLOWER("Apple")""")
+    assert len(results) == 1
+    assert results[0][0] == "apple"
+
+    results = execute_and_fetch_all(cursor, """RETURN TOUPPER("Apple")""")
+    assert len(results) == 1
+    assert results[0][0] == "APPLE"
+
+    results = execute_and_fetch_all(cursor, """RETURN TRIM("   Apple")""")
+    assert len(results) == 1
+    assert results[0][0] == "Apple"
+
+    results = execute_and_fetch_all(cursor, """RETURN SPLIT("Apple.Apple", ".")""")
+    assert len(results) == 1
+    assert results[0][0] == ["Apple", "Apple"]
+
+    results = execute_and_fetch_all(cursor, """RETURN LOG10(100)""")
+    assert len(results) == 1
+    assert results[0][0] == 2
+
+    results = execute_and_fetch_all(cursor, """RETURN SQRT(4)""")
+    assert len(results) == 1
+    assert results[0][0] == 2
+
+
+if __name__ == "__main__":
+    sys.exit(pytest.main([__file__, "-rA"]))

tests/e2e/distributed_queries/workloads.yaml

@@ -36,3 +36,8 @@ workloads:
     binary: "tests/e2e/pytest_runner.sh"
     args: ["distributed_queries/optional_match.py"]
     <<: *template_cluster
+
+  - name: "Awesome memgraph functions"
+    binary: "tests/e2e/pytest_runner.sh"
+    args: ["distributed_queries/awesome_memgraph_functions.py"]
+    <<: *template_cluster

tests/unit/CMakeLists.txt

@@ -406,3 +406,7 @@ target_link_libraries(${test_prefix}coordinator_shard_map mg-coordinator)
 # Tests for many shards, many creates, scan
 add_unit_test(high_density_shard_create_scan.cpp)
 target_link_libraries(${test_prefix}high_density_shard_create_scan mg-io mg-coordinator mg-storage-v3 mg-query-v2)
+
+# Tests for awesome_memgraph_functions
+add_unit_test(query_v2_expression_evaluator.cpp)
+target_link_libraries(${test_prefix}query_v2_expression_evaluator mg-query-v2)