vops_fdw.c: In function ‘foreign_grouping_ok’:
vops_fdw.c:1218:53: warning: declaration of ‘expr’ shadows a previous local [-Wshadow=compatible-local]
 1218 |                                         Expr       *expr = (Expr *) lfirst(l);
      |                                                     ^~~~
vops_fdw.c:1161:29: note: shadowed declaration is here
 1161 |                 Expr       *expr = (Expr *) lfirst(lc);
      |                             ^~~~
vops_fdw.c:1243:29: warning: declaration of ‘lc’ shadows a previous local [-Wshadow=compatible-local]
 1243 |                 ListCell   *lc;
      |                             ^~
vops_fdw.c:1118:21: note: shadowed declaration is here
 1118 |         ListCell   *lc;
      |                     ^~
vops_fdw.c:1262:29: warning: declaration of ‘lc’ shadows a previous local [-Wshadow=compatible-local]
 1262 |                 ListCell   *lc;
      |                             ^~
vops_fdw.c:1118:21: note: shadowed declaration is here
 1118 |         ListCell   *lc;
      |                     ^~
vops_fdw.c:1263:29: warning: declaration of ‘aggvars’ shadows a previous local [-Wshadow=compatible-local]
 1263 |                 List       *aggvars = pull_var_clause((Node *) fpinfo->local_conds,
      |                             ^~~~~~~
vops_fdw.c:1117:21: note: shadowed declaration is here
 1117 |         List       *aggvars;
      |                     ^~~~~~~
vops.c: In function ‘vops_import’:
vops.c:2973:49: warning: declaration of ‘dst’ shadows a previous local [-Wshadow=compatible-local]
 2973 |                                           char* dst = (char*)(tile + 1);
      |                                                 ^~~
vops.c:2828:31: note: shadowed declaration is here
 2828 |                         char* dst;
      |                               ^~~