Fix crash by using alignedAlloc rather than alloc (#10554)

[ti-chi-bot]

This is an automated cherry-pick of #10554

What problem does this PR solve?

Issue Number: close #10553

Problem Summary:

What is changed and how it works?

need to use alignedAlloc for Complex Type

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ChangRui-Ryan]

/retest

[windtalker]

lgtm

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gengliqi, windtalker

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-12-05 04:07:11.737569819 +0000 UTC m=+581976.551347392: ☑️ agreed by windtalker.
• 2025-12-05 04:08:14.857676982 +0000 UTC m=+582039.671454554: ☑️ agreed by gengliqi.