Fix issue 1738

src/include/processor/operator/copy/read_csv.h

@@ -18,10 +18,10 @@ class ReadCSVMorsel : public ReadFileMorsel {
 
 class ReadCSVSharedState : public ReadFileSharedState {
 public:
-    ReadCSVSharedState(common::CSVReaderConfig csvReaderConfig, catalog::TableSchema* tableSchema,
-        std::vector<std::string> filePaths)
-        : ReadFileSharedState{std::move(filePaths)}, csvReaderConfig{csvReaderConfig},
-          tableSchema{tableSchema} {}
+    ReadCSVSharedState(common::CSVReaderConfig csvReaderConfig, std::vector<std::string> filePaths,
+        catalog::TableSchema* tableSchema)
+        : ReadFileSharedState{std::move(filePaths), tableSchema}, csvReaderConfig{csvReaderConfig} {
+    }
 
 private:
     void countNumLines() override;
@@ -30,7 +30,6 @@ class ReadCSVSharedState : public ReadFileSharedState {
 
 private:
     common::CSVReaderConfig csvReaderConfig;
-    catalog::TableSchema* tableSchema;
     std::shared_ptr<arrow::csv::StreamingReader> reader;
 };
 

src/include/processor/operator/copy/read_file.h

@@ -26,9 +26,10 @@ class ReadFileMorsel {
 
 class ReadFileSharedState {
 public:
-    explicit ReadFileSharedState(std::vector<std::string> filePaths)
-        : nodeOffset{0}, curBlockIdx{0}, filePaths{std::move(filePaths)}, curFileIdx{0}, numRows{
-                                                                                             0} {}
+    explicit ReadFileSharedState(
+        std::vector<std::string> filePaths, catalog::TableSchema* tableSchema)
+        : nodeOffset{0}, curBlockIdx{0}, filePaths{std::move(filePaths)}, curFileIdx{0},
+          tableSchema{tableSchema}, numRows{0} {}
 
     virtual ~ReadFileSharedState() = default;
 
@@ -38,6 +39,7 @@ class ReadFileSharedState {
 
 public:
     uint64_t numRows;
+    catalog::TableSchema* tableSchema;
 
 protected:
     std::mutex mtx;
@@ -57,12 +59,7 @@ class ReadFile : public PhysicalOperator {
                                                                 arrowColumnPoses)},
           offsetVectorPos{std::move(offsetVectorPos)}, sharedState{std::move(sharedState)} {}
 
-    inline void initLocalStateInternal(ResultSet* resultSet, ExecutionContext* context) override {
-        offsetVector = resultSet->getValueVector(offsetVectorPos).get();
-        for (auto& arrowColumnPos : arrowColumnPoses) {
-            arrowColumnVectors.push_back(resultSet->getValueVector(arrowColumnPos).get());
-        }
-    }
+    void initLocalStateInternal(ResultSet* resultSet, ExecutionContext* context) override;
 
     inline void initGlobalStateInternal(kuzu::processor::ExecutionContext* context) override {
         sharedState->countNumLines();

src/include/processor/operator/copy/read_parquet.h

@@ -7,8 +7,9 @@ namespace processor {
 
 class ReadParquetSharedState : public ReadFileSharedState {
 public:
-    explicit ReadParquetSharedState(std::vector<std::string> filePaths)
-        : ReadFileSharedState{std::move(filePaths)} {}
+    explicit ReadParquetSharedState(
+        std::vector<std::string> filePaths, catalog::TableSchema* tableSchema)
+        : ReadFileSharedState{std::move(filePaths), tableSchema} {}
 
 private:
     void countNumLines() override;

src/include/storage/copier/node_copier.h

@@ -77,6 +77,7 @@ class NodeCopier {
     std::vector<std::shared_ptr<InMemColumn>> columns;
     common::column_id_t pkColumnID;
     common::column_id_t columnToCopy;
+    catalog::TableSchema* schema;
 };
 
 template<>

src/include/storage/copier/table_copy_utils.h

@@ -109,7 +109,7 @@ class TableCopyUtils {
     static std::shared_ptr<arrow::csv::StreamingReader> createCSVReader(const std::string& filePath,
         common::CSVReaderConfig* csvReaderConfig, catalog::TableSchema* tableSchema);
     static std::unique_ptr<parquet::arrow::FileReader> createParquetReader(
-        const std::string& filePath);
+        const std::string& filePath, catalog::TableSchema* tableSchema);
 
     static common::tuple_idx_t countNumLines(common::CopyDescription& copyDescription,
         catalog::TableSchema* tableSchema,
@@ -132,6 +132,7 @@ class TableCopyUtils {
         std::unordered_map<std::string, FileBlockInfo>& fileBlockInfos);
     static std::unique_ptr<common::Value> convertStringToValue(std::string element,
         const common::LogicalType& type, const common::CopyDescription& copyDescription);
+    static std::vector<std::string> getColumnNamesToRead(catalog::TableSchema* tableSchema);
 };
 
 } // namespace storage

src/processor/mapper/map_ddl.cpp

@@ -79,16 +79,17 @@ std::unique_ptr<PhysicalOperator> PlanMapper::mapLogicalCopyNodeToPhysical(Logic
         }
         auto offsetExpression = copy->getOffsetExpression();
         auto offsetVectorPos = DataPos(outSchema->getExpressionPos(*offsetExpression));
+        auto nodeTableSchema =
+            catalog->getReadOnlyVersion()->getNodeTableSchema(copy->getTableID());
         if (copy->getCopyDescription().fileType == common::CopyDescription::FileType::CSV) {
             readFileSharedState =
                 std::make_shared<ReadCSVSharedState>(*copy->getCopyDescription().csvReaderConfig,
-                    catalog->getReadOnlyVersion()->getNodeTableSchema(copy->getTableID()),
-                    copy->getCopyDescription().filePaths);
+                    copy->getCopyDescription().filePaths, nodeTableSchema);
             readFile = std::make_unique<ReadCSV>(arrowColumnPoses, offsetVectorPos,
                 readFileSharedState, getOperatorID(), copy->getExpressionsForPrinting());
         } else {
-            readFileSharedState =
-                std::make_shared<ReadParquetSharedState>(copy->getCopyDescription().filePaths);
+            readFileSharedState = std::make_shared<ReadParquetSharedState>(
+                copy->getCopyDescription().filePaths, nodeTableSchema);
             readFile = std::make_unique<ReadParquet>(arrowColumnPoses, offsetVectorPos,
                 readFileSharedState, getOperatorID(), copy->getExpressionsForPrinting());
         }

src/processor/operator/copy/read_file.cpp

@@ -3,6 +3,13 @@
 namespace kuzu {
 namespace processor {
 
+void ReadFile::initLocalStateInternal(ResultSet* resultSet, ExecutionContext* context) {
+    offsetVector = resultSet->getValueVector(offsetVectorPos).get();
+    for (auto& arrowColumnPos : arrowColumnPoses) {
+        arrowColumnVectors.push_back(resultSet->getValueVector(arrowColumnPos).get());
+    }
+}
+
 bool ReadFile::getNextTuplesInternal(kuzu::processor::ExecutionContext* context) {
     auto morsel = sharedState->getMorsel();
     if (morsel == nullptr) {

src/processor/operator/copy/read_parquet.cpp

@@ -6,7 +6,7 @@ namespace processor {
 void ReadParquetSharedState::countNumLines() {
     for (auto& filePath : filePaths) {
         std::unique_ptr<parquet::arrow::FileReader> reader =
-            storage::TableCopyUtils::createParquetReader(filePath);
+            storage::TableCopyUtils::createParquetReader(filePath, tableSchema);
         auto metadata = reader->parquet_reader()->metadata();
         uint64_t numBlocks = metadata->num_row_groups();
         std::vector<uint64_t> numLinesPerBlock(numBlocks);
@@ -47,7 +47,8 @@ std::shared_ptr<arrow::RecordBatch> ReadParquet::readTuples(
     std::unique_ptr<ReadFileMorsel> morsel) {
     assert(!morsel->filePath.empty());
     if (!reader || filePath != morsel->filePath) {
-        reader = storage::TableCopyUtils::createParquetReader(morsel->filePath);
+        reader = storage::TableCopyUtils::createParquetReader(
+            morsel->filePath, sharedState->tableSchema);
         filePath = morsel->filePath;
     }
     std::shared_ptr<arrow::Table> table;

src/storage/copier/node_copier.cpp

@@ -24,7 +24,7 @@ NodeCopier::NodeCopier(const std::string& directory, std::shared_ptr<CopySharedS
     const CopyDescription& copyDesc, TableSchema* schema, tuple_idx_t numTuples,
     column_id_t columnToCopy)
     : sharedState{std::move(sharedState)}, copyDesc{copyDesc}, columnToCopy{columnToCopy},
-      pkColumnID{INVALID_COLUMN_ID} {
+      pkColumnID{INVALID_COLUMN_ID}, schema{schema} {
     for (auto i = 0u; i < schema->properties.size(); i++) {
         auto property = schema->properties[i];
         if (property.dataType.getLogicalTypeID() == LogicalTypeID::SERIAL) {
@@ -160,7 +160,7 @@ void CSVNodeCopier::executeInternal(std::unique_ptr<CopyMorsel> morsel) {
 void ParquetNodeCopier::executeInternal(std::unique_ptr<CopyMorsel> morsel) {
     assert(!morsel->filePath.empty());
     if (!reader || filePath != morsel->filePath) {
-        reader = TableCopyUtils::createParquetReader(morsel->filePath);
+        reader = TableCopyUtils::createParquetReader(morsel->filePath, schema);
         filePath = morsel->filePath;
     }
     std::shared_ptr<arrow::Table> table;

src/storage/copier/rel_copier.cpp

@@ -251,7 +251,7 @@ void RelListsCounterAndColumnCopier::buildRelListsHeaders(
 void ParquetRelListsCounterAndColumnsCopier::executeInternal(std::unique_ptr<CopyMorsel> morsel) {
     assert(!morsel->filePath.empty());
     if (!reader || filePath != morsel->filePath) {
-        reader = TableCopyUtils::createParquetReader(morsel->filePath);
+        reader = TableCopyUtils::createParquetReader(morsel->filePath, schema);
         filePath = morsel->filePath;
     }
     std::shared_ptr<arrow::Table> table;
@@ -316,7 +316,7 @@ void RelListsCopier::finalize() {
 void ParquetRelListsCopier::executeInternal(std::unique_ptr<CopyMorsel> morsel) {
     assert(!morsel->filePath.empty());
     if (!reader || filePath != morsel->filePath) {
-        reader = TableCopyUtils::createParquetReader(morsel->filePath);
+        reader = TableCopyUtils::createParquetReader(morsel->filePath, schema);
         filePath = morsel->filePath;
     }
     std::shared_ptr<arrow::Table> table;

src/storage/copier/table_copy_utils.cpp

@@ -112,7 +112,8 @@ tuple_idx_t TableCopyUtils::countNumLinesParquet(CopyDescription& copyDescriptio
     std::unordered_map<std::string, FileBlockInfo>& fileBlockInfos) {
     tuple_idx_t numRows = 0;
     for (auto& filePath : copyDescription.filePaths) {
-        std::unique_ptr<parquet::arrow::FileReader> reader = createParquetReader(filePath);
+        std::unique_ptr<parquet::arrow::FileReader> reader =
+            createParquetReader(filePath, tableSchema);
         auto metadata = reader->parquet_reader()->metadata();
         uint64_t numBlocks = metadata->num_row_groups();
         std::vector<uint64_t> numLinesPerBlock(numBlocks);
@@ -166,20 +167,12 @@ std::shared_ptr<arrow::csv::StreamingReader> TableCopyUtils::createCSVReader(
     throwCopyExceptionIfNotOK(arrow::io::ReadableFile::Open(filePath).Value(&inputStream));
     auto csvReadOptions = arrow::csv::ReadOptions::Defaults();
     csvReadOptions.block_size = CopyConstants::CSV_READING_BLOCK_SIZE;
-    if (!tableSchema->isNodeTable) {
-        csvReadOptions.column_names.emplace_back(Property::REL_FROM_PROPERTY_NAME);
-        csvReadOptions.column_names.emplace_back(Property::REL_TO_PROPERTY_NAME);
-    }
-    for (auto& property : tableSchema->properties) {
-        if (skipCopyForProperty(property)) {
-            continue;
-        }
-        csvReadOptions.column_names.push_back(property.name);
+    for (auto& columnName : getColumnNamesToRead(tableSchema)) {
+        csvReadOptions.column_names.push_back(columnName);
     }
     if (csvReaderConfig->hasHeader) {
         csvReadOptions.skip_rows = 1;
     }
-
     auto csvParseOptions = arrow::csv::ParseOptions::Defaults();
     csvParseOptions.delimiter = csvReaderConfig->delimiter;
     csvParseOptions.escape_char = csvReaderConfig->escapeChar;
@@ -219,12 +212,21 @@ std::shared_ptr<arrow::csv::StreamingReader> TableCopyUtils::createCSVReader(
 }
 
 std::unique_ptr<parquet::arrow::FileReader> TableCopyUtils::createParquetReader(
-    const std::string& filePath) {
+    const std::string& filePath, TableSchema* tableSchema) {
     std::shared_ptr<arrow::io::ReadableFile> infile;
     throwCopyExceptionIfNotOK(arrow::io::ReadableFile::Open(filePath).Value(&infile));
     std::unique_ptr<parquet::arrow::FileReader> reader;
     throwCopyExceptionIfNotOK(
         parquet::arrow::OpenFile(infile, arrow::default_memory_pool(), &reader));
+    auto expectedNumColumns = getColumnNamesToRead(tableSchema).size();
+    auto actualNumColumns =
+        reader->parquet_reader()->metadata()->schema()->group_node()->field_count();
+    if (expectedNumColumns != actualNumColumns) {
+        // Note: Some parquet files may contain an index column.
+        throw common::CopyException(common::StringUtils::string_format(
+            "Unmatched number of columns in parquet file. Expect: {}, got: {}.", expectedNumColumns,
+            actualNumColumns));
+    }
     return reader;
 }
 
@@ -434,5 +436,20 @@ std::unique_ptr<Value> TableCopyUtils::convertStringToValue(
     return value;
 }
 
+std::vector<std::string> TableCopyUtils::getColumnNamesToRead(catalog::TableSchema* tableSchema) {
+    std::vector<std::string> columnNamesToRead;
+    if (!tableSchema->isNodeTable) {
+        columnNamesToRead.emplace_back(Property::REL_FROM_PROPERTY_NAME);
+        columnNamesToRead.emplace_back(Property::REL_TO_PROPERTY_NAME);
+    }
+    for (auto& property : tableSchema->properties) {
+        if (skipCopyForProperty(property)) {
+            continue;
+        }
+        columnNamesToRead.push_back(property.name);
+    }
+    return columnNamesToRead;
+}
+
 } // namespace storage
 } // namespace kuzu

test/test_files/exceptions/copy/wrong_header.test

@@ -45,3 +45,19 @@ Copy exception: COPY commands can only be executed once on a table.
 -STATEMENT COPY knows FROM "${KUZU_ROOT_DIRECTORY}/dataset/copy-fault-tests/wrong-header/eKnowsMissingColumn.csv" (HEADER=true)
 ---- error
 Copy exception: Invalid: CSV parse error: Expected 4 columns, got 3: 10,24,1
+
+-CASE NodeUnmatchedNumColumns
+-STATEMENT create node table person (ID1 SERIAL, ID INT64, fName INT64, age INT64, PRIMARY KEY (ID1))
+---- ok
+-STATEMENT COPY person FROM "${KUZU_ROOT_DIRECTORY}/dataset/copy-test/node/parquet/types_50k_1.parquet" (HEADER=true)
+---- error
+Copy exception: Unmatched number of columns in parquet file. Expect: 3, got: 13.
+
+-CASE RelUnmatchedNumColumns
+-STATEMENT create node table person (ID1 SERIAL, ID INT64, fName INT64, age INT64, PRIMARY KEY (ID1))
+---- ok
+-STATEMENT create rel table knows (FROM person TO person, time date, age INT64)
+---- ok
+-STATEMENT COPY knows FROM "${KUZU_ROOT_DIRECTORY}/dataset/demo-db/parquet/follows.parquet" (HEADER=true)
+---- error
+Copy exception: Unmatched number of columns in parquet file. Expect: 4, got: 3.