On 2018/04/18 0:02, Alvaro Herrera wrote:
> Amit Langote wrote:
> 
>> Attached find a patch that does that.  When working on this, I noticed
>> that when recursing for inheritance children, ATPrepAlterColumnType()
>> would use a AlterTableCmd (cmd) that's already scribbled on as if it were
>> the original.
> 
> While I agree that the code here is in poor style, there is no live bug
> here, because the only thing that is changed each time is the copy's
> cmd->def, and its value is not obtained from the scribbled 'cmd' -- it's
> obtained from the passed-in cmd->def, which is unmodified.

Ah, you're right.  The original cmd->def itself remains intact.

Thanks,
Amit


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