# include "../ingres.h" # include "../aux.h" # include "../tree.h" # include "../pipes.h" # include "../symbol.h" # include "parser.h" /* ** XDOT ** add to attribute stash any missing attributes in the ** source relation and then build tree with all attribs ** in the 'attid' order. This algorithm assumes that ** the function 'attadd' insert attributes into the list ** in 'attid' order from 1 -> N. */ struct querytree * xdot(rptr) struct rngtab *rptr; { struct attribute tuple; register struct attribute *ktuple; struct attribute ktup; struct tup_id tid; struct tup_id limtid; struct querytree *tempt; register struct querytree *vnode; int ik; register struct atstash *aptr; # ifdef xPTR2 tTfp(15, 0, "ALL being processed for %s\n", rptr->relnm); # endif /* if attstash is missing any attribs then fill in list */ if (rptr->ratts != attcount(rptr)) { /* get all entries in attrib relation */ clearkeys(&Desc); ktuple = &ktup; setkey(&Desc, ktuple, rptr->relnm, ATTRELID); setkey(&Desc, ktuple, rptr->relnowner, ATTOWNER); if (ik = find(&Desc, EXACTKEY, &tid, &limtid, ktuple)) syserr("bad find in xdot '%d'", ik); while (!get(&Desc, &tid, &limtid, &tuple, 1)) if (!kcompare(&Desc, &tuple, ktuple)) /* add any that are not in the stash */ if (!attfind(rptr, tuple.attname)) attadd(rptr, &tuple); } /* build tree for ALL */ tempt = NULL; aptr = rptr->attlist; while (aptr != 0) { vnode = tree(NULL, NULL, VAR, 6, rptr->rentno, aptr); Trname = aptr->atbname; tempt = addresdom(tempt, vnode); aptr = aptr->atbnext; } return(tempt); }