Re: queryId constant squashing does not support prepared statements

On Mon, May 12, 2025 at 06:40:43PM -0400, Sami Imseih wrote:
> Also, LocationExpr is not really an expression node, but a wrapper to
> an expression node, so I think it's wrong to define it as a Node and be
> required to add the necessary handling for it in nodeFuncs.c. I think we
> can just define it as a struct in gram.y so it can carry the locations of the
> expression and then set the List of the location boundaries in
> A_Expr and A_ArrayExpr. right?

Right.  LocationExpr is not a full Node, so if we can do these
improvements without it we have less maintenance to worry about across
the board with less code paths.  At the end, I think that we should
try to keep the amount of work done by PGSS as minimal as possible.

I was a bit worried about not using a Node but Sami has reminded me
last week that we already have in gram.y the concept of using some
private structures to track intermediate results done by the parsing
that we sometimes do not want to push down to the code calling the
parser.  If we can do the same, the result could be nicer.

By the way, the new test cases for ARRAY lists are sent in the last
patch of the series posted on this thread:
https://www.postgresql.org/message-id/7zbzwk4btnxoo4o3xbtzefoqvht54cszjj4bol22fmej5nmgkf@dbcn4wtakw4y

These should be first in the list, IMO, so as it is possible to track
what the behavior was before the new logic as of HEAD, and what the
behavior would become after the new logic.
--
Michael