we have is_distinct

enable threadpool (solveing some concurrency issues)

Author: njnes

sqlalchemy_monetdb/dialect.py

@@ -57,10 +57,10 @@ class MonetDialect(default.DefaultDialect):
     supports_default_values = True
     supports_native_boolean = True
     supports_multivalues_insert = True
-    poolclass = pool.SingletonThreadPool
+    poolclass = pool.QueuePool
     supports_unicode_statements = True
     postfetch_lastrowid = True
-    supports_is_distinct_from = False
+    supports_is_distinct_from = True
 
     statement_compiler = MonetCompiler
     ddl_compiler = MonetDDLCompiler