[fix] fix to_string use memory after free #10777
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jacktengg
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Merge fix of apache#10777 to branch dev-1.1.1.
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Merge fix of #10777 to branch dev-1.1.1.
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Co-authored-by: cambyzju <[email protected]>
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Proposed changes
Issue Number: close #10638
Problem Summary:
After search all
convert_to_full_column_if_constcall, I find DataTypeNullable and DataTypeString have the same problem.If we want to use column returned by
convert_to_full_column_if_const, we need to keep at least one refcount to avoid the column be released.Checklist(Required)
Further comments
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