Implement loader for blob type

dataset/tinysnb/eMeets.csv

@@ -1,7 +1,7 @@
-0,2,"[7.82,3.54]",5
-2,5,"[2.87,4.23]",2
-3,7,"[3.65,8.44]",3
-7,3,"[2.11,3.1]",7
-8,3,"[2.2,9.0]",9
-9,3,"[3,5.2]",11
-10,2,"[3.5,1.1]",13
+0,2,"[7.82,3.54]",5,"\\xAA\\xBB\\xCC\\xDD"
+2,5,"[2.87,4.23]",2,"NO hex code"
+3,7,"[3.65,8.44]",3,"MIXED \\xAC with ASCII \\x0A"
+7,3,"[2.11,3.1]",7,"\\xA1\\x2A"
+8,3,"[2.2,9.0]",9,"\\x3A\\xA3"
+9,3,"[3,5.2]",11,"NO hex code"
+10,2,"[3.5,1.1]",13,"\\x3A\\xA3"

dataset/tinysnb/schema.cypher

@@ -1,8 +1,8 @@
 create node table person (ID INt64, fName StRING, gender INT64, isStudent BoOLEAN, isWorker BOOLEAN, age INT64, eyeSight DOUBLE, birthdate DATE, registerTime TIMESTAMP, lastJobDuration interval, workedHours INT64[], usedNames STRING[], courseScoresPerTerm INT64[][], grades INT64[4], height float, PRIMARY KEY (ID));
 create node table organisation (ID INT64, name STRING, orgCode INT64, mark DOUBLE, score INT64, history STRING, licenseValidInterval INTERVAL, rating DOUBLE, state STRUCT(revenue INT16, location STRING[], stock STRUCT(price INT64[], volume INT64)), PRIMARY KEY (ID));
-create node table movies (name STRING, length INT32, note STRING, description STRUCT(rating DOUBLE, views INT64, release TIMESTAMP, film DATE), PRIMARY KEY (name));
+create node table movies (name STRING, length INT32, note STRING, description STRUCT(rating DOUBLE, views INT64, release TIMESTAMP, film DATE), content BYTEA, PRIMARY KEY (name));
 create rel table knows (FROM person TO person, date DATE, meetTime TIMESTAMP, validInterval INTERVAL, comments STRING[], MANY_MANY);
 create rel table studyAt (FROM person TO organisation, year INT64, places STRING[], length INT16,MANY_ONE);
 create rel table workAt (FROM person TO organisation, year INT64, grading DOUBLE[2], rating float, MANY_ONE);
-create rel table meets (FROM person TO person, location FLOAT[2], times INT, MANY_ONE);
+create rel table meets (FROM person TO person, location FLOAT[2], times INT, data BYTEA, MANY_ONE);
 create rel table marries (FROM person TO person, usedAddress STRING[], address INT16[2], note STRING, ONE_ONE);

dataset/tinysnb/vMovies.csv

@@ -1,3 +1,3 @@
-Sóló cón tu párejâ,126, this is a very very good movie,"{rating: 5.3, views: 152, release: 2011-08-20 11:25:30, film: 2012-05-11}"
-The 😂😃🧘🏻‍♂️🌍🌦️🍞🚗 movie,2544, the movie is very very good,"{rating: 7, views: 982, release: 2018-11-13 13:33:11, film: 2014-09-12}"
-Roma,298,the movie is very interesting and funny,"{rating: 1223, views: 10003, release: 2011-02-11 16:44:22, film: 2013-02-22}"
+Sóló cón tu párejâ,126, this is a very very good movie,"{rating: 5.3, views: 152, release: 2011-08-20 11:25:30, film: 2012-05-11}","\\xAA\\xABinteresting\\x0B"
+The 😂😃🧘🏻‍♂️🌍🌦️🍞🚗 movie,2544, the movie is very very good,"{rating: 7, views: 982, release: 2018-11-13 13:33:11, film: 2014-09-12}","\\xAB\\xCD"
+Roma,298,the movie is very interesting and funny,"{rating: 1223, views: 10003, release: 2011-02-11 16:44:22, film: 2013-02-22}","pure ascii characters"

src/common/string_utils.cpp

@@ -55,5 +55,18 @@ std::string StringUtils::extractStringBetween(
     return input.substr(posStart, posEnd - posStart);
 }
 
+std::string StringUtils::removeEscapedCharacters(const std::string& input) {
+    std::string resultStr;
+    for (auto i = 1u; i < input.length() - 1; i++) {
+        // Antlr4 already guarantees that the character followed by the escaped character is
+        // valid. So we can safely skip the escaped character.
+        if (input[i] == '\\') {
+            i++;
+        }
+        resultStr += input[i];
+    }
+    return resultStr;
+}
+
 } // namespace common
 } // namespace kuzu

src/common/types/blob.cpp

@@ -43,27 +43,27 @@ uint64_t Blob::getBlobSize(const ku_string_t& blob) {
     return blobSize;
 }
 
-void Blob::fromString(ku_string_t& str, uint8_t* resultBuffer) {
+uint64_t Blob::fromString(const char* str, uint64_t length, uint8_t* resultBuffer) {
     auto resultPos = 0u;
-    auto blobData = str.getData();
-    for (auto i = 0u; i < str.len; i++) {
-        if (blobData[i] == '\\') {
-            validateHexCode(blobData, str.len, i);
+    for (auto i = 0u; i < length; i++) {
+        if (str[i] == '\\') {
+            validateHexCode(reinterpret_cast<const uint8_t*>(str), length, i);
             auto firstByte =
-                HexFormatConstants::HEX_MAP[blobData[i + HexFormatConstants::FIRST_BYTE_POS]];
+                HexFormatConstants::HEX_MAP[str[i + HexFormatConstants::FIRST_BYTE_POS]];
             auto secondByte =
-                HexFormatConstants::HEX_MAP[blobData[i + HexFormatConstants::SECOND_BYTES_POS]];
+                HexFormatConstants::HEX_MAP[str[i + HexFormatConstants::SECOND_BYTES_POS]];
             resultBuffer[resultPos++] =
                 (firstByte << HexFormatConstants::NUM_BYTES_TO_SHIFT_FOR_FIRST_BYTE) + secondByte;
             i += HexFormatConstants::LENGTH - 1;
-        } else if (blobData[i] <= 127) {
-            resultBuffer[resultPos++] = blobData[i];
+        } else if (str[i] <= 127) {
+            resultBuffer[resultPos++] = str[i];
         } else {
             throw ConversionException(
                 "Invalid byte encountered in STRING -> BLOB conversion. All non-ascii characters "
                 "must be escaped with hex codes (e.g. \\xAA)");
         }
     }
+    return resultPos;
 }
 
 std::string Blob::toString(blob_t& blob) {

src/common/types/types.cpp

@@ -332,6 +332,8 @@ LogicalTypeID LogicalTypeUtils::dataTypeIDFromString(const std::string& dataType
         return LogicalTypeID::FLOAT;
     } else if ("BOOLEAN" == dataTypeIDString) {
         return LogicalTypeID::BOOL;
+    } else if ("BYTEA" == dataTypeIDString || "BLOB" == dataTypeIDString) {
+        return LogicalTypeID::BLOB;
     } else if ("STRING" == dataTypeIDString) {
         return LogicalTypeID::STRING;
     } else if ("DATE" == dataTypeIDString) {
@@ -530,22 +532,26 @@ std::vector<LogicalType> LogicalTypeUtils::getAllValidComparableLogicalTypes() {
         LogicalType{LogicalTypeID::INT16}, LogicalType{LogicalTypeID::DOUBLE},
         LogicalType{LogicalTypeID::FLOAT}, LogicalType{LogicalTypeID::DATE},
         LogicalType{LogicalTypeID::TIMESTAMP}, LogicalType{LogicalTypeID::INTERVAL},
-        LogicalType{LogicalTypeID::STRING}, LogicalType{LogicalTypeID::SERIAL}};
+        LogicalType{LogicalTypeID::BLOB}, LogicalType{LogicalTypeID::STRING},
+        LogicalType{LogicalTypeID::SERIAL}};
 }
 
 std::vector<LogicalTypeID> LogicalTypeUtils::getNumericalLogicalTypeIDs() {
     return std::vector<LogicalTypeID>{LogicalTypeID::INT64, LogicalTypeID::INT32,
         LogicalTypeID::INT16, LogicalTypeID::DOUBLE, LogicalTypeID::FLOAT, LogicalTypeID::SERIAL};
 }
 
-std::vector<LogicalTypeID> LogicalTypeUtils::getAllValidLogicTypeIDs() {
+std::vector<LogicalType> LogicalTypeUtils::getAllValidLogicTypes() {
     // TODO(Ziyi): Add FIX_LIST,STRUCT,MAP type to allValidTypeID when we support functions on
     // FIXED_LIST,STRUCT,MAP.
-    return std::vector<LogicalTypeID>{LogicalTypeID::INTERNAL_ID, LogicalTypeID::BOOL,
-        LogicalTypeID::INT64, LogicalTypeID::INT32, LogicalTypeID::INT16, LogicalTypeID::DOUBLE,
-        LogicalTypeID::STRING, LogicalTypeID::DATE, LogicalTypeID::TIMESTAMP,
-        LogicalTypeID::INTERVAL, LogicalTypeID::VAR_LIST, LogicalTypeID::FLOAT,
-        LogicalTypeID::SERIAL};
+    return std::vector<LogicalType>{LogicalType{LogicalTypeID::INTERNAL_ID},
+        LogicalType{LogicalTypeID::BOOL}, LogicalType{LogicalTypeID::INT64},
+        LogicalType{LogicalTypeID::INT32}, LogicalType{LogicalTypeID::INT16},
+        LogicalType{LogicalTypeID::DOUBLE}, LogicalType{LogicalTypeID::STRING},
+        LogicalType{LogicalTypeID::BLOB}, LogicalType{LogicalTypeID::DATE},
+        LogicalType{LogicalTypeID::TIMESTAMP}, LogicalType{LogicalTypeID::INTERVAL},
+        LogicalType{LogicalTypeID::VAR_LIST}, LogicalType{LogicalTypeID::FLOAT},
+        LogicalType{LogicalTypeID::SERIAL}};
 }
 
 std::vector<std::string> LogicalTypeUtils::parseStructFields(const std::string& structTypeStr) {

src/function/built_in_aggregate_functions.cpp

@@ -85,18 +85,11 @@ void BuiltInAggregateFunctions::registerCountStar() {
 
 void BuiltInAggregateFunctions::registerCount() {
     std::vector<std::unique_ptr<AggregateFunctionDefinition>> definitions;
-    LogicalType inputType;
-    for (auto& typeID : LogicalTypeUtils::getAllValidLogicTypeIDs()) {
-        if (typeID == LogicalTypeID::VAR_LIST) {
-            inputType = LogicalType(
-                typeID, std::make_unique<VarListTypeInfo>(std::make_unique<LogicalType>()));
-        } else {
-            inputType = LogicalType(typeID);
-        }
+    for (auto& type : LogicalTypeUtils::getAllValidLogicTypes()) {
         for (auto isDistinct : std::vector<bool>{true, false}) {
             definitions.push_back(std::make_unique<AggregateFunctionDefinition>(COUNT_FUNC_NAME,
-                std::vector<LogicalTypeID>{typeID}, LogicalTypeID::INT64,
-                AggregateFunctionUtil::getCountFunction(inputType, isDistinct), isDistinct));
+                std::vector<LogicalTypeID>{type.getLogicalTypeID()}, LogicalTypeID::INT64,
+                AggregateFunctionUtil::getCountFunction(type, isDistinct), isDistinct));
         }
     }
     aggregateFunctions.insert({COUNT_FUNC_NAME, std::move(definitions)});

src/include/common/string_utils.h

@@ -69,6 +69,8 @@ class StringUtils {
 
     static std::string extractStringBetween(const std::string& input, char delimiterStart,
         char delimiterEnd, bool includeDelimiter = false);
+
+    static std::string removeEscapedCharacters(const std::string& input);
 };
 
 } // namespace common

src/include/common/types/blob.h

@@ -11,25 +11,25 @@ struct blob_t {
 };
 
 struct HexFormatConstants {
-    static constexpr const char PREFIX[] = "\\\\x";
-    static constexpr const uint64_t PREFIX_LENGTH = 3;
-    static constexpr const uint64_t FIRST_BYTE_POS = PREFIX_LENGTH;
-    static constexpr const uint64_t SECOND_BYTES_POS = PREFIX_LENGTH + 1;
-    static constexpr const uint64_t LENGTH = 5;
-    static constexpr const uint64_t NUM_BYTES_TO_SHIFT_FOR_FIRST_BYTE = 4;
-    static constexpr const uint64_t SECOND_BYTE_MASK = 0x0F;
     // map of integer -> hex value.
     static constexpr const char* HEX_TABLE = "0123456789ABCDEF";
     // reverse map of byte -> integer value, or -1 for invalid hex values.
     static const int HEX_MAP[256];
+    static constexpr const uint64_t NUM_BYTES_TO_SHIFT_FOR_FIRST_BYTE = 4;
+    static constexpr const uint64_t SECOND_BYTE_MASK = 0x0F;
+    static constexpr const char PREFIX[] = "\\x";
+    static constexpr const uint64_t PREFIX_LENGTH = 2;
+    static constexpr const uint64_t FIRST_BYTE_POS = PREFIX_LENGTH;
+    static constexpr const uint64_t SECOND_BYTES_POS = PREFIX_LENGTH + 1;
+    static constexpr const uint64_t LENGTH = 4;
 };
 
 struct Blob {
     static std::string toString(blob_t& blob);
 
     static uint64_t getBlobSize(const ku_string_t& blob);
 
-    static void fromString(ku_string_t& str, uint8_t* resultBuffer);
+    static uint64_t fromString(const char* str, uint64_t length, uint8_t* resultBuffer);
 
 private:
     static void validateHexCode(const uint8_t* blobStr, uint64_t length, uint64_t curPos);

src/include/common/types/types.h

@@ -323,7 +323,7 @@ class LogicalTypeUtils {
     static bool isNumerical(const LogicalType& dataType);
     static std::vector<LogicalType> getAllValidComparableLogicalTypes();
     static std::vector<LogicalTypeID> getNumericalLogicalTypeIDs();
-    static std::vector<LogicalTypeID> getAllValidLogicTypeIDs();
+    static std::vector<LogicalType> getAllValidLogicTypes();
 
 private:
     static LogicalTypeID dataTypeIDFromString(const std::string& dataTypeIDString);

src/include/function/cast/cast_operations.h

@@ -57,7 +57,11 @@ struct CastToBlob {
                 common::StringVector::getInMemOverflowBuffer(&resultVector)
                     ->allocateSpace(result.value.len));
         }
-        common::Blob::fromString(input, result.value.getDataWritable());
+        common::Blob::fromString(reinterpret_cast<const char*>(input.getData()), input.len,
+            result.value.getDataWritable());
+        if (!common::ku_string_t::isShortString(result.value.len)) {
+            memcpy(result.value.prefix, result.value.getData(), common::ku_string_t::PREFIX_LENGTH);
+        }
     }
 };
 

src/include/storage/in_mem_storage_structure/in_mem_column.h

@@ -16,17 +16,17 @@ class InMemColumn {
 
     std::unique_ptr<InMemColumnChunk> getInMemColumnChunk(common::offset_t startNodeOffset,
         common::offset_t endNodeOffset, const common::CopyDescription* copyDescription) {
-        switch (dataType.getLogicalTypeID()) {
-        case common::LogicalTypeID::STRING:
-        case common::LogicalTypeID::VAR_LIST: {
+        switch (dataType.getPhysicalType()) {
+        case common::PhysicalTypeID::STRING:
+        case common::PhysicalTypeID::VAR_LIST: {
             return std::make_unique<InMemColumnChunkWithOverflow>(
                 dataType, startNodeOffset, endNodeOffset, copyDescription, inMemOverflowFile.get());
         }
-        case common::LogicalTypeID::FIXED_LIST: {
+        case common::PhysicalTypeID::FIXED_LIST: {
             return std::make_unique<InMemFixedListColumnChunk>(
                 dataType, startNodeOffset, endNodeOffset, copyDescription);
         }
-        case common::LogicalTypeID::STRUCT: {
+        case common::PhysicalTypeID::STRUCT: {
             auto inMemStructColumnChunk = std::make_unique<InMemStructColumnChunk>(
                 dataType, startNodeOffset, endNodeOffset, copyDescription);
             for (auto& fieldColumn : childColumns) {

src/include/storage/in_mem_storage_structure/in_mem_column_chunk.h

@@ -87,7 +87,8 @@ class InMemColumnChunkWithOverflow : public InMemColumnChunk {
         common::offset_t endNodeOffset, const common::CopyDescription* copyDescription,
         InMemOverflowFile* inMemOverflowFile)
         : InMemColumnChunk{std::move(dataType), startNodeOffset, endNodeOffset, copyDescription},
-          inMemOverflowFile{inMemOverflowFile} {}
+          inMemOverflowFile{inMemOverflowFile}, blobBuffer{std::make_unique<uint8_t[]>(
+                                                    common::BufferPoolConstants::PAGE_4KB_SIZE)} {}
 
     void copyArrowArray(arrow::Array& array, arrow::Array* nodeOffsets = nullptr) final;
 
@@ -106,6 +107,7 @@ class InMemColumnChunkWithOverflow : public InMemColumnChunk {
     storage::InMemOverflowFile* inMemOverflowFile;
     // TODO(Ziyi/Guodong): Fix this for rel columns.
     PageByteCursor overflowCursor;
+    std::unique_ptr<uint8_t[]> blobBuffer;
 };
 
 class InMemStructColumnChunk : public InMemColumnChunk {

src/include/storage/in_mem_storage_structure/in_mem_lists.h

@@ -142,6 +142,7 @@ class InMemListsWithOverflow : public InMemLists {
     std::unique_ptr<InMemOverflowFile> overflowInMemFile;
     // TODO(Guodong/Ziyi): Fix for concurrent writes.
     PageByteCursor overflowCursor;
+    std::unique_ptr<uint8_t[]> blobBuffer;
 };
 
 class InMemAdjLists : public InMemLists {

src/include/storage/storage_structure/column.h

@@ -221,6 +221,7 @@ class ColumnFactory {
         case common::LogicalTypeID::INTERVAL:
         case common::LogicalTypeID::FIXED_LIST:
             return std::make_unique<Column>(structureIDAndFName, logicalType, bufferManager, wal);
+        case common::LogicalTypeID::BLOB:
         case common::LogicalTypeID::STRING:
             return std::make_unique<StringPropertyColumn>(
                 structureIDAndFName, logicalType, bufferManager, wal);

src/include/storage/storage_structure/lists/lists.h

@@ -264,6 +264,7 @@ class ListsFactory {
             return std::make_unique<Lists>(structureIDAndFName, dataType,
                 storage::StorageUtils::getDataTypeSize(dataType), adjListsHeaders, bufferManager,
                 wal, listsUpdatesStore);
+        case common::LogicalTypeID::BLOB:
         case common::LogicalTypeID::STRING:
             return std::make_unique<StringPropertyLists>(
                 structureIDAndFName, adjListsHeaders, bufferManager, wal, listsUpdatesStore);

src/parser/transformer.cpp

@@ -1088,7 +1088,7 @@ Transformer::transformParsingOptions(CypherParser::KU_ParsingOptionsContext& ctx
 
 std::string Transformer::transformStringLiteral(antlr4::tree::TerminalNode& stringLiteral) {
     auto str = stringLiteral.getText();
-    return str.substr(1, str.size() - 2);
+    return common::StringUtils::removeEscapedCharacters(str);
 }
 
 } // namespace parser

src/processor/operator/order_by/order_by.cpp

@@ -50,7 +50,7 @@ void OrderBy::initGlobalStateInternal(kuzu::processor::ExecutionContext* context
     auto tableSchema = populateTableSchema();
     for (auto i = 0u; i < orderByDataInfo.keysPosAndType.size(); ++i) {
         auto [dataPos, dataType] = orderByDataInfo.keysPosAndType[i];
-        if (LogicalTypeID::STRING == dataType.getLogicalTypeID()) {
+        if (PhysicalTypeID::STRING == dataType.getPhysicalType()) {
             // If this is a string column, we need to find the factorizedTable offset for this
             // column.
             auto factorizedTableColIdx = 0ul;

src/storage/copier/table_copy_utils.cpp

@@ -365,6 +365,7 @@ std::shared_ptr<arrow::DataType> TableCopyUtils::toArrowDataType(const LogicalTy
     case LogicalTypeID::INTERVAL:
     case LogicalTypeID::FIXED_LIST:
     case LogicalTypeID::VAR_LIST:
+    case LogicalTypeID::BLOB:
     case LogicalTypeID::STRING:
     case LogicalTypeID::STRUCT: {
         return arrow::utf8();

src/storage/in_mem_storage_structure/in_mem_column.cpp

@@ -12,8 +12,8 @@ namespace storage {
 InMemColumn::InMemColumn(std::string filePath, LogicalType dataType, bool requireNullBits)
     : filePath{std::move(filePath)}, dataType{std::move(dataType)} {
     // TODO(Guodong): Separate this as a function.
-    switch (this->dataType.getLogicalTypeID()) {
-    case LogicalTypeID::STRUCT: {
+    switch (this->dataType.getPhysicalType()) {
+    case PhysicalTypeID::STRUCT: {
         auto fieldTypes = common::StructType::getFieldTypes(&this->dataType);
         childColumns.reserve(fieldTypes.size());
         for (auto i = 0u; i < fieldTypes.size(); i++) {
@@ -22,8 +22,8 @@ InMemColumn::InMemColumn(std::string filePath, LogicalType dataType, bool requir
                 true /* hasNull */));
         }
     } break;
-    case LogicalTypeID::STRING:
-    case LogicalTypeID::VAR_LIST: {
+    case PhysicalTypeID::STRING:
+    case PhysicalTypeID::VAR_LIST: {
         inMemOverflowFile =
             std::make_unique<InMemOverflowFile>(StorageUtils::getOverflowFileName(this->filePath));
         fileHandle = std::make_unique<FileHandle>(

src/storage/in_mem_storage_structure/in_mem_column_chunk.cpp

@@ -220,6 +220,9 @@ void InMemColumnChunkWithOverflow::copyArrowArray(arrow::Array& array, arrow::Ar
         case common::LogicalTypeID::STRING: {
             templateCopyValuesAsStringToPageWithOverflow<ku_string_t>(array, nodeOffsets);
         } break;
+        case common::LogicalTypeID::BLOB: {
+            templateCopyValuesAsStringToPageWithOverflow<blob_t>(array, nodeOffsets);
+        } break;
         case common::LogicalTypeID::VAR_LIST: {
             templateCopyValuesAsStringToPageWithOverflow<ku_list_t>(array, nodeOffsets);
         } break;
@@ -303,6 +306,17 @@ void InMemColumnChunkWithOverflow::setValWithOverflow<ku_string_t>(
     setValue(val, pos);
 }
 
+// BLOB
+template<>
+void InMemColumnChunkWithOverflow::setValWithOverflow<blob_t>(
+    const char* value, uint64_t length, uint64_t pos) {
+    auto blobLen = Blob::fromString(
+        value, std::min(length, BufferPoolConstants::PAGE_4KB_SIZE), blobBuffer.get());
+    auto blobVal = inMemOverflowFile->copyString(
+        reinterpret_cast<const char*>(blobBuffer.get()), blobLen, overflowCursor);
+    setValue(blobVal, pos);
+}
+
 // VAR_LIST
 template<>
 void InMemColumnChunkWithOverflow::setValWithOverflow<ku_list_t>(