* cdbpullup_missingVarWalker * * Returns true if some Var in expr is not in targetlist. * 'targetlist' is either a List of TargetEntry, or a plain List of Expr. * * NB: A Var in the expr is considered as matching a Var in the targetlist * without regard for whether or not there is a RelabelType node atop the * targetlist Var. * */
| 435 | * |
| 436 | */ |
| 437 | static bool |
| 438 | cdbpullup_missingVarWalker(Expr *node, void *targetlist) |
| 439 | { |
| 440 | if (!node) |
| 441 | return false; |
| 442 | |
| 443 | /* |
| 444 | * Should also consider PlaceHolderVar in the targetlist. |
| 445 | * See github issue: https://github.com/greenplum-db/gpdb/issues/10315 |
| 446 | */ |
| 447 | if (IsA(node, Var) || IsA(node, PlaceHolderVar)) |
| 448 | { |
| 449 | if (!targetlist) |
| 450 | return true; |
| 451 | |
| 452 | /* is targetlist a List of TargetEntry? */ |
| 453 | if (IsA(linitial(targetlist), TargetEntry)) |
| 454 | { |
| 455 | if (tlist_member_ignore_relabel(node, (List *) targetlist)) |
| 456 | return false; /* this Var ok - go on to check rest of expr */ |
| 457 | } |
| 458 | |
| 459 | /* targetlist must be a List of Expr */ |
| 460 | else if (list_member((List *) targetlist, node)) |
| 461 | return false; /* this Var ok - go on to check rest of expr */ |
| 462 | |
| 463 | return true; /* Var is not in targetlist - quit the walk */ |
| 464 | } |
| 465 | |
| 466 | return expression_tree_walker((Node *) node, cdbpullup_missingVarWalker, targetlist); |
| 467 | } /* cdbpullup_missingVarWalker */ |
no test coverage detected