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[GLUTEN-11862][VL] Work around GMT session timezone validation failure on macOS #11869

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[GLUTEN-11862][VL] Work around GMT session timezone validation failure on macOS #11869

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2b78e35
[VL] Normalize Spark GMT session timezone before native validation
Apr 1, 2026
2275b3f
Merge branch 'apache:main' into fix/vl-session-timezone-gmt
malinjawi Apr 2, 2026
d9af892
[VL] Apply clang-format to timezone workaround changes
Apr 2, 2026
7b07767
[VL] Address review feedback on timezone workaround
Apr 9, 2026
cbb8085
Merge branch 'main' into fix/vl-session-timezone-gmt
malinjawi Apr 9, 2026
fea81aa
[VL] Fix code format in timezone validator
Apr 9, 2026
1f03304
Merge branch 'main' into fix/vl-session-timezone-gmt
malinjawi Apr 12, 2026
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8 changes: 8 additions & 0 deletions backends-velox/src/test/scala/org/apache/gluten/execution/MiscOperatorSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1910,6 +1910,14 @@ class MiscOperatorSuite extends VeloxWholeStageTransformerSuite with AdaptiveSpa
assert(plan2.find(_.isInstanceOf[ProjectExecTransformer]).isDefined)
}

test("cast date to timestamp with GMT session timezone") {
withSQLConf(SQLConf.SESSION_LOCAL_TIMEZONE.key -> "GMT") {
runQueryAndCompare("SELECT cast(date'2023-01-02 01:01:01' as timestamp) as ts") {
checkGlutenPlan[ProjectExecTransformer]
}
}
}

test("cast timestamp to date") {
val query = "select cast(ts as date) from values (timestamp'2024-01-01 00:00:00') as tab(ts)"
runQueryAndCompare(query) {
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11 changes: 11 additions & 0 deletions cpp/core/config/GlutenConfig.cc
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Expand Up @@ -49,6 +49,17 @@ parseConfMap(JNIEnv* env, const uint8_t* planData, const int32_t planDataLength)
return sparkConfs;
}

std::string normalizeSessionTimezone(std::string_view sessionTimezone) {
if (sessionTimezone == "GMT") {
return "UTC";
}
if (sessionTimezone.size() > 3 && sessionTimezone.substr(0, 3) == "GMT" &&
(sessionTimezone[3] == '+' || sessionTimezone[3] == '-')) {
return std::string("UTC").append(sessionTimezone.substr(3));
}
return std::string(sessionTimezone);
}

std::string printConfig(const std::unordered_map<std::string, std::string>& conf) {
std::ostringstream oss;
oss << std::endl;
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3 changes: 3 additions & 0 deletions cpp/core/config/GlutenConfig.h
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Expand Up @@ -20,6 +20,7 @@
#include <jni.h>
#include <cstdint>
#include <string>
#include <string_view>
#include <unordered_map>

namespace gluten {
Expand Down Expand Up @@ -102,5 +103,7 @@ const std::string kDebugCudfDefault = "false";
std::unordered_map<std::string, std::string>
parseConfMap(JNIEnv* env, const uint8_t* planData, const int32_t planDataLength);

std::string normalizeSessionTimezone(std::string_view sessionTimezone);

std::string printConfig(const std::unordered_map<std::string, std::string>& conf);
} // namespace gluten
3 changes: 2 additions & 1 deletion cpp/velox/compute/WholeStageResultIterator.cc
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Expand Up @@ -575,7 +575,8 @@ std::unordered_map<std::string, std::string> WholeStageResultIterator::getQueryC
std::to_string(veloxCfg_->get<uint64_t>(kVeloxPreferredBatchBytes, 10L << 20));
try {
configs[velox::core::QueryConfig::kSparkAnsiEnabled] = veloxCfg_->get<std::string>(kAnsiEnabled, "false");
configs[velox::core::QueryConfig::kSessionTimezone] = veloxCfg_->get<std::string>(kSessionTimezone, "");
configs[velox::core::QueryConfig::kSessionTimezone] =
normalizeSessionTimezone(veloxCfg_->get<std::string>(kSessionTimezone, ""));
// Adjust timestamp according to the above configured session timezone.
configs[velox::core::QueryConfig::kAdjustTimestampToTimezone] = "true";

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2 changes: 1 addition & 1 deletion cpp/velox/substrait/SubstraitToVeloxPlanValidator.h
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Expand Up @@ -31,7 +31,7 @@ class SubstraitToVeloxPlanValidator {
public:
SubstraitToVeloxPlanValidator(memory::MemoryPool* pool) {
std::unordered_map<std::string, std::string> configs{
{velox::core::QueryConfig::kSparkPartitionId, "0"}, {velox::core::QueryConfig::kSessionTimezone, "GMT"}};
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@jinchengchenghh jinchengchenghh Apr 2, 2026

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update the GMT to other value is enough

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@malinjawi malinjawi Apr 9, 2026

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Thanks, addressed. I updated kSessionTimezone in to UTC.

{velox::core::QueryConfig::kSparkPartitionId, "0"}, {velox::core::QueryConfig::kSessionTimezone, "UTC"}};
veloxCfg_ = std::make_shared<facebook::velox::config::ConfigBase>(std::move(configs));
planConverter_ = std::make_unique<SubstraitToVeloxPlanConverter>(
pool, veloxCfg_.get(), std::vector<std::shared_ptr<ResultIterator>>{}, std::nullopt, std::nullopt, true);
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4 changes: 3 additions & 1 deletion cpp/velox/utils/VeloxWriterUtils.cc
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Expand Up @@ -89,7 +89,9 @@ std::unique_ptr<WriterOptions> makeParquetWriteOption(const std::unordered_map<s
writeOption->flushPolicyFactory = [maxRowGroupRows, maxRowGroupBytes]() {
return std::make_unique<LambdaFlushPolicy>(maxRowGroupRows, maxRowGroupBytes, [&]() { return false; });
};
writeOption->parquetWriteTimestampTimeZone = getConfigValue(sparkConfs, kSessionTimezone, std::nullopt);
if (auto it = sparkConfs.find(kSessionTimezone); it != sparkConfs.end()) {
writeOption->parquetWriteTimestampTimeZone = normalizeSessionTimezone(it->second);
}
writeOption->arrowMemoryPool =
getDefaultMemoryManager()->getOrCreateArrowMemoryPool("VeloxParquetWrite.ArrowMemoryPool");
if (auto it = sparkConfs.find(kParquetDataPageSize); it != sparkConfs.end()) {
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