Update of /cvsroot/monetdb/pathfinder/compiler/algebra/prop
In directory 23jxhf1.ch3.sourceforge.com:/tmp/cvs-serv4226/compiler/algebra/prop
Modified Files:
Tag: M5XQ
prop_const.c
Log Message:
propagated changes of Friday Jun 12 2009 - Monday Jun 15 2009
from the development trunk to the M5XQ branch
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2009/06/12 - tsheyar: compiler/algebra/prop/prop_const.c,1.53
-- Replaced aggregate operators count, min, max, avg, sum, prod, seqty1,
and all in the algebra by a single aggregate operator ``aggr''
that can handle multiple aggregates. The aggregate entries
are of kind count, min, max, avg, sum, prod, seqty1, all, and dist.
-- Added new aggregate kind ``dist'' that allows to represent group by
columns that functionally depend on the partitioning criterion
in the result of the grouping aggregate.
-- Added rewrite that merges aggregates.
-- Added rewrite that removes superfluous aggregates.
-- Added rewrite that pushes a rank operator through an aggregate.
-- Extended the XML import to cope with the old
as well as the new representation of aggregates.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
U prop_const.c
Index: prop_const.c
===================================================================
RCS file: /cvsroot/monetdb/pathfinder/compiler/algebra/prop/prop_const.c,v
retrieving revision 1.51.2.1
retrieving revision 1.51.2.2
diff -u -d -r1.51.2.1 -r1.51.2.2
--- prop_const.c 7 May 2009 14:44:18 -0000 1.51.2.1
+++ prop_const.c 15 Jun 2009 12:45:46 -0000 1.51.2.2
@@ -538,20 +538,25 @@
PFprop_const_val (L(n)->prop, n->sem.binary.col1));
break;
- case la_avg:
- case la_max:
- case la_min:
- /* if column 'col' is constant the result 'res' will be as well */
- if (PFprop_const (L(n)->prop, n->sem.aggr.col))
- PFprop_mark_const (
- n->prop,
- n->sem.aggr.res,
- PFprop_const_val (L(n)->prop, n->sem.aggr.col));
- case la_sum:
- case la_prod:
- case la_count:
- case la_seqty1:
- case la_all:
+ case la_aggr:
+ for (unsigned int i = 0; i < n->sem.aggr.count; i++)
+ if (PFprop_const (L(n)->prop, n->sem.aggr.aggr[i].col))
+ switch (n->sem.aggr.aggr[i].kind) {
+ case alg_aggr_dist:
+ case alg_aggr_min:
+ case alg_aggr_max:
+ case alg_aggr_avg:
+ case alg_aggr_all:
+ PFprop_mark_const (
+ n->prop,
+ n->sem.aggr.aggr[i].res,
+ PFprop_const_val (L(n)->prop,
+
n->sem.aggr.aggr[i].col));
+ break;
+
+ default:
+ break;
+ }
if (n->sem.aggr.part &&
PFprop_const (L(n)->prop, n->sem.aggr.part))
PFprop_mark_const (
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