On 2022-Aug-01, Amit Langote wrote: > On Sat, Jul 30, 2022 at 5:25 AM Tom Lane <t...@sss.pgh.pa.us> wrote:
> > I do not think it's a great idea to have ALTER TABLE scribbling on > > the source parsetree. > > Hmm, I think we already do scribble on the source parse tree even > before this patch, for example, as ATPrepCmd() does for DROP > CONSTRAINT: > > if (recurse) > cmd->subtype = AT_DropConstraintRecurse; No, actually nothing scribbles on the parsetree, because ATPrepCmd is working on a copy of the node, so there's no harm done to the original. -- Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/ "I can't go to a restaurant and order food because I keep looking at the fonts on the menu. Five minutes later I realize that it's also talking about food" (Donald Knuth)