Function ExpandIndirectionStar

src/backend/parser/parse_target.c:1343–1359

* ExpandIndirectionStar() * Transforms foo.* into a list of expressions or targetlist entries. * * This handles the case where '*' appears as the last item in A_Indirection. * The code is shared between the case of foo.* at the top level in a SELECT * target list (where we want TargetEntry nodes in the result) and foo.* in * a ROW() or VALUES() construct (where we want just bare expressions

 * this rather than relying on exprKind.
 */
static List *
ExpandIndirectionStar(ParseState *pstate, A_Indirection *ind,
					  bool make_target_entry, ParseExprKind exprKind)
{
	Node	   *expr;

	/* Strip off the '*' to create a reference to the rowtype object */
	ind = copyObject(ind);
	ind->indirection = list_truncate(ind->indirection,
									 list_length(ind->indirection) - 1);

	/* And transform that */
	expr = transformExpr(pstate, (Node *) ind, exprKind);

	/* Expand the rowtype expression into individual fields */
	return ExpandRowReference(pstate, expr, make_target_entry);
}

/*
 * ExpandSingleTable()