branch-2.1: [fix](column) fix ColumnWithTypeAndName::get_nested use-after-free when input Const(Nullable) column #48288 #49245
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…en input Const(Nullable) column (#48288) ### What problem does this PR solve? error code ``` ColumnPtr nested_column = column; if (column) { nested_column = nested_column->convert_to_full_column_if_const(); const auto* source_column = assert_cast<const ColumnNullable*>(nested_column.get()); nested_column = source_column->get_nested_column_ptr(); ``` If column is a const(nullable) column, execute: nested_column = nested_column->convert_to_full_column_if_const(); nested_column points to a new nullable column. Execute: const auto* source_column = assert_cast<const ColumnNullable*>(nested_column.get()); source_column, this raw pointer, points to the new nullable column (but does not have ownership). Execute: nested_column = source_column->get_nested_column_ptr(); nested_column points to the nested column of the new nullable column, and the original nullable column is released. ### Release note None ### Check List (For Author) - Test <!-- At least one of them must be included. --> - [ ] Regression test - [x] Unit Test - [ ] Manual test (add detailed scripts or steps below) - [ ] No need to test or manual test. Explain why: - [ ] This is a refactor/code format and no logic has been changed. - [ ] Previous test can cover this change. - [ ] No code files have been changed. - [ ] Other reason <!-- Add your reason? --> - Behavior changed: - [x] No. - [ ] Yes. <!-- Explain the behavior change --> - Does this need documentation? - [x] No. - [ ] Yes. <!-- Add document PR link here. eg: apache/doris-website#1214 --> ### Check List (For Reviewer who merge this PR) - [x] Confirm the release note - [x] Confirm test cases - [x] Confirm document - [x] Add branch pick label <!-- Add branch pick label that this PR should merge into -->
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Cherry-picked from #48288