[fix](iceberg) fix the iceberg timstamp_ntz write schema and values bug.

Author: lik40

be/src/vec/exec/format/table/iceberg/arrow_schema_util.cpp

@@ -70,7 +70,9 @@ Status ArrowSchemaUtil::convert_to(const iceberg::NestedField& field,
         break;
 
     case iceberg::TypeID::TIMESTAMP: {
-        arrow_type = std::make_shared<arrow::TimestampType>(arrow::TimeUnit::MICRO, timezone);
+        iceberg::TimestampType* t_type = static_cast<iceberg::TimestampType*>(field.field_type());
+        std::string real_tz = t_type->should_adjust_to_utc() ? timezone : "";
+        arrow_type = std::make_shared<arrow::TimestampType>(arrow::TimeUnit::MICRO, real_tz);
         break;
     }
 

be/src/vec/runtime/vparquet_transformer.cpp

@@ -228,10 +228,7 @@ Status VParquetTransformer::_parse_properties() {
         builder.max_row_group_length(std::numeric_limits<int64_t>::max());
         builder.memory_pool(pool);
         _parquet_writer_properties = builder.build();
-        _arrow_properties = parquet::ArrowWriterProperties::Builder()
-                                    .enable_deprecated_int96_timestamps()
-                                    ->store_schema()
-                                    ->build();
+        _arrow_properties = parquet::ArrowWriterProperties::Builder().store_schema()->build();
     } catch (const parquet::ParquetException& e) {
         return Status::InternalError("parquet writer parse properties error: {}", e.what());
     }