[Bug] Fix segmentation fault at unalign address cast to int128

[BiteTheDDDDt]

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Version

master

What's Wrong?

Fix segmentation fault at unalign address cast to int128

What You Expected?

fix it

How to Reproduce?

No response

Anything Else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[BiteTheDDDDt]

backtrace infomation:

Thread 1 "row_cursor_test" received signal SIGSEGV, Segmentation fault.
0x0000000000b44ed9 in doris::TestRowCursor_AggregateWithoutNull_Test::TestBody (this=<optimized out>) at doris/core/be/test/olap/row_cursor_test.cpp:501
501	    int128_t agg_value = *reinterpret_cast<int128_t*>(row.cell_ptr(2));
Execute debugger commands using "-exec <command>", for example "-exec info registers" will list registers in use (when GDB is the debugger)
-exec bt
#0  0x0000000000b44ed9 in doris::TestRowCursor_AggregateWithoutNull_Test::TestBody (this=<optimized out>) at doris/core/be/test/olap/row_cursor_test.cpp:501
#1  0x0000000001df8bd3 in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) ()
#2  0x0000000001df1637 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) ()
#3  0x0000000001dc6682 in testing::Test::Run() ()
#4  0x0000000001dc70a6 in testing::TestInfo::Run() ()
#5  0x0000000001dc7966 in testing::TestSuite::Run() ()
#6  0x0000000001dd7026 in testing::internal::UnitTestImpl::RunAllTests() ()
#7  0x0000000001df9ab0 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) ()
#8  0x0000000001df262d in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) ()
#9  0x0000000001dd581b in testing::UnitTest::Run() ()
#10 0x0000000000b47a81 in RUN_ALL_TESTS () at doris/core/thirdparty/installed/include/gtest/gtest.h:2490
#11 main (argc=1, argv=<optimized out>) at doris/core/be/test/olap/row_cursor_test.cpp:578