Update of /cvsroot/monetdb/pathfinder/compiler/algebra/opt
In directory 23jxhf1.ch3.sourceforge.com:/tmp/cvs-serv25706/algebra/opt
Modified Files:
opt_complex.c
Log Message:
-- Only rewrite if another rewrite sits in place to consume the rewritten plan.
U opt_complex.c
Index: opt_complex.c
===================================================================
RCS file: /cvsroot/monetdb/pathfinder/compiler/algebra/opt/opt_complex.c,v
retrieving revision 1.73
retrieving revision 1.74
diff -u -d -r1.73 -r1.74
--- opt_complex.c 9 Apr 2009 18:49:02 -0000 1.73
+++ opt_complex.c 20 Apr 2009 08:12:51 -0000 1.74
@@ -1939,21 +1939,21 @@
modified = true;
break;
}
- }
- /* Push a rowid operator underneath the adjacent
- projection thus hoping to find a composite key
- that allows to replace the rowid operator by
- a rank operator. */
- else if (L(p)->kind == la_project) {
- PFalg_proj_t *proj = PFmalloc (p->schema.count *
- sizeof (PFalg_proj_t));
- PFalg_col_t col = PFcol_new (p->sem.rowid.res);
- for (unsigned int i = 0; i < L(p)->sem.proj.count; i++)
- proj[i] = L(p)->sem.proj.items[i];
- proj[L(p)->schema.count] = PFalg_proj (p->sem.rowid.res,
- col);
- *p = *PFla_project_ (rowid (LL(p), col), p->schema.count,
proj);
- modified = true;
+ /* Push a rowid operator underneath the adjacent
+ projection thus hoping to find a composite key
+ that allows to replace the rowid operator by
+ a rank operator. */
+ else if (L(p)->kind == la_project) {
+ PFalg_proj_t *proj = PFmalloc (p->schema.count *
+ sizeof (PFalg_proj_t));
+ PFalg_col_t col = PFcol_new (p->sem.rowid.res);
+ for (unsigned int i = 0; i < L(p)->sem.proj.count; i++)
+ proj[i] = L(p)->sem.proj.items[i];
+ proj[L(p)->schema.count] = PFalg_proj (p->sem.rowid.res,
+ col);
+ *p = *PFla_project_ (rowid (LL(p), col), p->schema.count,
proj);
+ modified = true;
+ }
}
break;
------------------------------------------------------------------------------
Stay on top of everything new and different, both inside and
around Java (TM) technology - register by April 22, and save
$200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco.
300 plus technical and hands-on sessions. Register today.
Use priority code J9JMT32. http://p.sf.net/sfu/p
_______________________________________________
Monetdb-pf-checkins mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/monetdb-pf-checkins
