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From: Peter Smith <smithpb2250@gmail.com>
Date: Thu, 4 Dec 2025 12:08:37 +1100
Message-ID: 
 <CAHut+PveN-xpSAPeFunXr1sYQEPL729k_NAFiEoCBA=XdR82SA@mail.gmail.com>
Subject: Re: Cleanup shadows variable warnings, round 1
To: Chao Li <li.evan.chao@gmail.com>
Cc: Peter Eisentraut <peter@eisentraut.org>,
	Postgres hackers <pgsql-hackers@lists.postgresql.org>
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FWIW... A few more review comments for v3.

//////////
Patch v3-0001.
//////////

======
src/backend/access/gist/gistbuild.c

2.1.
OK, but should you take it 1 step further?

BEFORE
foreach(lc, splitinfo)
{
  GISTPageSplitInfo *si = lfirst(lc);
AFTER
foreach_ptr(GISTPageSplitInfo, si, splitinfo)
{

======
src/backend/commands/schemacmds.c

2.2.
OK, but should you take it 1 step further?

BEFORE
foreach(parsetree_item, parsetree_list)
{
  Node    *substmt = (Node *) lfirst(parsetree_item);
AFTER
foreach_ptr(Node, substmt, parsetree_list)
{

======
src/backend/commands/statscmds.c

2.3.
OK, but I felt 'attnums_bms' might be a better replacement name than 'attnumsbm'

======
src/backend/executor/nodeValuesscan.c

2.4.
OK, but should you take it 1 step further?

BEFORE
foreach(lc, exprstatelist)
{
  ExprState  *exprstate = (ExprState *) lfirst(lc);
AFTER
foreach_ptr(ExprState, exprstate, exprstatelist)
{

======
src/backend/statistics/dependencies.c

2.5.
The other variable in other parts of this function had names like:
clause_expr
bool_expr
or_expr
stat_expr

So, perhaps your new names should be changed slightly to look more
similar to those?

======
src/backend/statistics/extended_stats.c

2.6.
This seems to be in the wrong patch because here you renamed the local
var, not the inner one, as the patch commit message says.

======
src/backend/utils/adt/jsonpath_exec.c

2.7.
Wondering if 'vals' might be a better name than 'foundJV' (there is
already another JsonValueList vals elsewhere in this code).

======
src/bin/pgbench/pgbench.c

2.8.
Wondering if 'nskipped' is a better name than 'skips'.

//////////
Patch v3-0003
//////////

LGTM.

======
Kind Regards,
Peter Smith.
Fujitsu Australia