apache · alinaliBQ · Mar 19, 2026
@@ -336,6 +336,64 @@ jobs:
           cd cpp/examples/minimal_build
           ../minimal_build.build/arrow-example
 
+  odbc-linux:
+    needs: check-labels
+    name: ODBC Linux
+    runs-on: ubuntu-latest
+    if: >-
+      needs.check-labels.outputs.force == 'true' ||
+      contains(fromJSON(needs.check-labels.outputs.ci-extra-labels || '[]'), 'CI: Extra') ||
+      contains(fromJSON(needs.check-labels.outputs.ci-extra-labels || '[]'), 'CI: Extra: C++')
+    timeout-minutes: 75
+    strategy:
+      fail-fast: false
+    env:
+      ARCH: amd64
+      ARCHERY_DEBUG: 1
+      ARROW_ENABLE_TIMING_TESTS: OFF
+      CLANG_TOOLS: 18
+      DOCKER_VOLUME_PREFIX: ".docker/"
+      LLVM: 18
+      UBUNTU: 24.04
+    steps:
+      - name: Checkout Arrow
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+          submodules: recursive
+      - name: Cache Docker Volumes
+        uses: actions/cache@v5
+        with:
+          path: .docker
+          key: ubuntu-cpp-odbc-${{ hashFiles('cpp/**') }}
+          restore-keys: ubuntu-cpp-odbc-
+      - name: Setup Python on hosted runner
+        uses: actions/setup-python@v6
+        with:
+          python-version: 3
+      - name: Setup Archery
+        run: python3 -m pip install -e dev/archery[docker]
+      - name: Execute Docker Build
+        env:
+          ARCHERY_DOCKER_USER: ${{ secrets.DOCKERHUB_USER }}
+          ARCHERY_DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_TOKEN }}
+        run: |
+          # GH-40558: reduce ASLR to avoid ASAN/LSAN crashes
+          sudo sysctl -w vm.mmap_rnd_bits=28
+          source ci/scripts/util_enable_core_dumps.sh
+          archery docker run ubuntu-cpp-odbc
+      - name: Docker Push
+        if: >-
+          success() &&
+          github.event_name == 'push' &&
+          github.repository == 'apache/arrow' &&
+          github.ref_name == 'main'
+        env:
+          ARCHERY_DOCKER_USER: ${{ secrets.DOCKERHUB_USER }}
+          ARCHERY_DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_TOKEN }}
+        continue-on-error: true
+        run: archery docker push ubuntu-cpp-odbc
+
   odbc-macos:
     needs: check-labels
     name: ODBC ${{ matrix.build-type }} ${{ matrix.architecture }} macOS ${{ matrix.macos-version }}
@@ -435,7 +493,7 @@ jobs:
             "$(pwd)/build/cpp/${{ matrix.build-type }}/libarrow_flight_sql_odbc.dylib"
       - name: Register Flight SQL ODBC Driver
         run: |
-          sudo cpp/src/arrow/flight/sql/odbc/install/mac/install_odbc.sh $(pwd)/build/cpp/${{ matrix.build-type }}/libarrow_flight_sql_odbc.dylib
+          sudo cpp/src/arrow/flight/sql/odbc/install/unix/install_odbc.sh $(pwd)/build/cpp/${{ matrix.build-type }}/libarrow_flight_sql_odbc.dylib
       - name: Test
         shell: bash
         run: |
@@ -698,6 +756,7 @@ jobs:
       - jni-linux
       - jni-macos
       - msvc-arm64
+      - odbc-linux
       - odbc-macos
       - odbc-msvc
       - odbc-nightly

@@ -121,6 +121,7 @@ RUN apt-get update -y -q && \
         rsync \
         tzdata \
         tzdata-legacy \
+        unixodbc-dev \
         uuid-runtime \
         unzip \
         wget && \

@@ -151,6 +151,7 @@ x-hierarchy:
     - ubuntu-r-only-r
   - ubuntu-cpp-bundled
   - ubuntu-cpp-bundled-offline
+  - ubuntu-cpp-odbc
   - ubuntu-cpp-minimal
   - ubuntu-cuda-cpp:
     - ubuntu-cuda-python
@@ -496,6 +497,43 @@ services:
     volumes: *ubuntu-volumes
     command: *cpp-command
 
+  ubuntu-cpp-odbc:
+    # Arrow Flight SQL ODBC build with BUNDLED dependencies with downloaded dependencies.
+    image: ${REPO}:${ARCH}-ubuntu-${UBUNTU}-cpp
+    build:
+      context: .
+      dockerfile: ci/docker/ubuntu-${UBUNTU}-cpp.dockerfile
+      cache_from:
+        - ${REPO}:${ARCH}-ubuntu-${UBUNTU}-cpp
+      args:
+        arch: ${ARCH}
+        base: "${ARCH}/ubuntu:${UBUNTU}"
+        clang_tools: ${CLANG_TOOLS}
+        cmake: ${CMAKE}
+        gcc: ${GCC}
+        llvm: ${LLVM}
+    shm_size: *shm-size
+    cap_add:
+      - SYS_ADMIN
+    devices:
+      - "/dev/fuse:/dev/fuse"
+    security_opt:
+      - apparmor:unconfined
+    ulimits: *ulimits
+    environment:
+      <<: [*common, *ccache, *sccache, *cpp]
+      ARROW_BUILD_TYPE: RELEASE
+      ARROW_DEPENDENCY_SOURCE: BUNDLED
+      ARROW_DEPENDENCY_USE_SHARED: OFF
+      ARROW_FLIGHT_SQL_ODBC: ON
+    volumes: *ubuntu-volumes
+    # Register ODBC before running tests
+    command: >
+      /bin/bash -c "
+        /arrow/ci/scripts/cpp_build.sh /arrow /build &&
+        sudo /arrow/cpp/src/arrow/flight/sql/odbc/install/unix/install_odbc.sh /usr/local/lib/libarrow_flight_sql_odbc.so &&
+        /arrow/ci/scripts/cpp_test.sh /arrow /build"
+
   ubuntu-cpp-minimal:
     # Arrow build with minimal components/dependencies
     image: ${REPO}:${ARCH}-ubuntu-${UBUNTU}-cpp-minimal

diff --git a/cpp/cmake_modules/DefineOptions.cmake b/cpp/cmake_modules/DefineOptions.cmake
@@ -107,10 +107,6 @@ macro(tsort_bool_option_dependencies)
 endmacro()
 
 macro(resolve_option_dependencies)
-  # Arrow Flight SQL ODBC is available only for Windows and macOS for now.
-  if(NOT WIN32 AND NOT APPLE)
-    set(ARROW_FLIGHT_SQL_ODBC OFF)
-  endif()
   if(MSVC_TOOLCHAIN)
     set(ARROW_USE_GLOG OFF)
   endif()

diff --git a/cpp/cmake_modules/ThirdpartyToolchain.cmake b/cpp/cmake_modules/ThirdpartyToolchain.cmake
@@ -1090,7 +1090,7 @@ function(build_boost)
     set(ARROW_BOOST_NEED_MULTIPRECISION FALSE)
   endif()
   if(ARROW_ENABLE_THREADING)
-    if(ARROW_WITH_THRIFT OR (ARROW_FLIGHT_SQL_ODBC AND MSVC))
+    if(ARROW_WITH_THRIFT OR ARROW_FLIGHT_SQL_ODBC)
       list(APPEND BOOST_INCLUDE_LIBRARIES locale)
     endif()
     if(ARROW_BOOST_NEED_MULTIPRECISION)

@@ -28,7 +28,12 @@ else()
 endif()
 
 add_subdirectory(odbc_impl)
-add_subdirectory(tests)
+if(ARROW_BUILD_TESTS)
+  if(WIN32 OR APPLE)
+    # GH-49552 TODO: Enable Linux test build
+    add_subdirectory(tests)
+  endif()
+endif()
 
 arrow_install_all_headers("arrow/flight/sql/odbc")
 

@@ -40,7 +40,16 @@ if [ ! -f "$ODBC_64BIT" ]; then
   exit 1
 fi
 
-USER_ODBCINST_FILE="$HOME/Library/ODBC/odbcinst.ini"
+case "$(uname)" in
+  Linux)
+    USER_ODBCINST_FILE="/etc/odbcinst.ini"
+    ;;
+  *)
+    # macOS
+    USER_ODBCINST_FILE="$HOME/Library/ODBC/odbcinst.ini"
+    ;;
+esac
+
 DRIVER_NAME="Apache Arrow Flight SQL ODBC Driver"
 
 mkdir -p "$HOME"/Library/ODBC

@@ -37,6 +37,8 @@
 #endif  // defined(_WIN32)
 
 namespace arrow::flight::sql::odbc {
+void LoadPropertiesFromDSN(const std::string& dsn, Connection::ConnPropertyMap& props);
+
 SQLRETURN SQLAllocHandle(SQLSMALLINT type, SQLHANDLE parent, SQLHANDLE* result) {
   ARROW_LOG(DEBUG) << "SQLAllocHandle called with type: " << type
                    << ", parent: " << parent

@@ -20,8 +20,7 @@
 #include "arrow/flight/sql/odbc/odbc_impl/platform.h"
 
 #include <sql.h>
-#include <sqltypes.h>
-#include <sqlucode.h>
+#include <sqlext.h>
 
 //  \file odbc_api_internal.h
 //

@@ -130,20 +130,26 @@ if(WIN32)
                          win_system_dsn.cc)
 endif()
 
-if(APPLE)
+if(WIN32)
+  find_package(ODBC REQUIRED)
+  target_include_directories(arrow_odbc_spi_impl PUBLIC ${ODBC_INCLUDE_DIR})
+  target_link_libraries(arrow_odbc_spi_impl
+                        PUBLIC arrow_flight_sql_shared arrow_compute_shared Boost::locale
+                               ${ODBCINST})
+else()
+  # Unix
   target_include_directories(arrow_odbc_spi_impl SYSTEM BEFORE PUBLIC ${ODBC_INCLUDE_DIR})
   target_link_libraries(arrow_odbc_spi_impl
                         PUBLIC arrow_flight_sql_static
                                arrow_compute_static
                                Boost::locale
                                Boost::headers
                                RapidJSON)
-else()
-  find_package(ODBC REQUIRED)
-  target_include_directories(arrow_odbc_spi_impl PUBLIC ${ODBC_INCLUDE_DIR})
-  target_link_libraries(arrow_odbc_spi_impl
-                        PUBLIC arrow_flight_sql_shared arrow_compute_shared Boost::locale
-                               ${ODBCINST})
+
+  if(NOT APPLE)
+    # Explicitly link to unix-odbc on Linux
+    target_link_libraries(arrow_odbc_spi_impl PUBLIC ${ODBCINST})
+  endif()
 endif()
 
 # CLI

@@ -42,7 +42,7 @@ TEST(BinaryArrayAccessor, Test_CDataType_BINARY_Basic) {
             accessor.GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                      diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(values[i].length(), str_len_buffer[i]);
     // Beware that CDataType_BINARY values are not null terminated.
     // It's safe to create a std::string from this data because we know it's

@@ -39,7 +39,7 @@ TEST(BooleanArrayFlightSqlAccessor, Test_BooleanArray_CDataType_BIT) {
             accessor.GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                      diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(sizeof(unsigned char), str_len_buffer[i]);
     ASSERT_EQ(values[i] ? 1 : 0, buffer[i]);
   }

@@ -83,7 +83,7 @@ void AssertNumericOutput(int input_precision, int input_scale,
             accessor.GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                      diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(sizeof(NUMERIC_STRUCT), str_len_buffer[i]);
 
     ASSERT_EQ(output_precision, buffer[i].precision);

@@ -46,7 +46,7 @@ void TestPrimitiveArraySqlAccessor() {
             accessor.GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                      diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(sizeof(c_type), str_len_buffer[i]);
     ASSERT_EQ(values[i], buffer[i]);
   }

@@ -43,7 +43,7 @@ TEST(StringArrayAccessor, Test_CDataType_CHAR_Basic) {
             accessor.GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                      diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(values[i].length(), str_len_buffer[i]);
     ASSERT_EQ(values[i], std::string(buffer.data() + i * max_str_len));
   }
@@ -102,7 +102,7 @@ TEST(StringArrayAccessor, Test_CDataType_WCHAR_Basic) {
             accessor->GetColumnarData(&binding, 0, values.size(), value_offset, false,
                                       diagnostics, nullptr));
 
-  for (int i = 0; i < values.size(); ++i) {
+  for (size_t i = 0; i < values.size(); ++i) {
     ASSERT_EQ(values[i].length() * GetSqlWCharSize(), str_len_buffer[i]);
     std::vector<uint8_t> expected;
     Utf8ToWcs(values[i].c_str(), &expected);

@@ -43,12 +43,12 @@ struct ColumnBinding {
 
   ColumnBinding(CDataType target_type, int precision, int scale, void* buffer,
                 size_t buffer_length, ssize_t* str_len_buffer)
-      : target_type(target_type),
-        precision(precision),
-        scale(scale),
-        buffer(buffer),
+      : buffer(buffer),
+        str_len_buffer(str_len_buffer),
         buffer_length(buffer_length),
-        str_len_buffer(str_len_buffer) {}
+        target_type(target_type),
+        precision(precision),
+        scale(scale) {}
 };
 
 /// \brief Accessor interface meant to provide a way of populating data of a

@@ -158,11 +158,21 @@ inline void SetAttributeSQLWCHAR(SQLPOINTER new_value, SQLINTEGER input_length_i
   thread_local std::vector<uint8_t> utf8_str;
   if (input_length_in_bytes == SQL_NTS) {
     arrow::flight::sql::odbc::WcsToUtf8(new_value, &utf8_str);
+  } else if (input_length_in_bytes <= 0) {
+    // empty string
+    attribute_to_write.clear();
+    return;
   } else {
     arrow::flight::sql::odbc::WcsToUtf8(
         new_value, input_length_in_bytes / arrow::flight::sql::odbc::GetSqlWCharSize(),
         &utf8_str);
   }
+
+  // add null-terminator
+  if (utf8_str.back() != '\0') {
+    utf8_str.push_back('\0');
+  }
+
   attribute_to_write.assign((char*)utf8_str.data());
 }
 

@@ -49,7 +49,7 @@ class BlockingQueue {
 
   void AddProducer(Supplier supplier) {
     active_threads_++;
-    threads_.emplace_back([=] {
+    threads_.emplace_back([this, supplier] {
       while (!closed_) {
         // Block while queue is full
         std::unique_lock<std::mutex> unique_lock(mtx_);