Changeset: b78b7bb3f677 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/b78b7bb3f677
Modified Files:
sql/backends/monet5/rel_physical.c
Branch: default
Log Message:
small improvement to faviour fhash
diffs (11 lines):
diff --git a/sql/backends/monet5/rel_physical.c
b/sql/backends/monet5/rel_physical.c
--- a/sql/backends/monet5/rel_physical.c
+++ b/sql/backends/monet5/rel_physical.c
@@ -1049,6 +1049,7 @@ rel_pipeline(visitor *v, sql_rel *rel, b
if (rel->single ||
rel->op == op_left ||
rel->op == op_right ||
+ rel->lunique || /* scan left if right
is primary key */
rel_getcount(v->sql, r) <
rel_getcount(v->sql, l) ||
manti)
rel->oahash = 2;
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