Changeset: 32ef46b52453 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=32ef46b52453
Modified Files:
sql/src/server/rel_optimizer.mx
Branch: default
Log Message:
comment about future work
diffs (19 lines):
diff -r e0562ba062d9 -r 32ef46b52453 sql/src/server/rel_optimizer.mx
--- a/sql/src/server/rel_optimizer.mx Thu Aug 19 18:04:27 2010 +0200
+++ b/sql/src/server/rel_optimizer.mx Thu Aug 19 18:05:06 2010 +0200
@@ -3735,6 +3735,15 @@
}
#endif
+ /* TODO
+ expensive (functions) in select and/or join expressions should
+ be push-up into new projections after (ie executed when the
+ tables are reduced allready).
+
+ select bla = true/false should be rewriten into select bla.
+ and not(bla).
+ (were bla is an compare expression)
+ */
/* make parts conditional (via debug flag) */
/* simple merging of projects */
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