--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pydbkit/pgstats.py	Wed Jul 09 18:03:54 2014 +0200
@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+#
+# PgStats - browse database statistics
+#
+# Copyright (c) 2011  Radek Brich <radek.brich@devl.cz>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+
+class PgStats:
+    def __init__(self, conn=None):
+        self.conn = conn
+        
+    def setconn(self, conn=None):
+        self.conn = conn
+
+    def _query(self, query, *args):
+        try:
+            curs = self.conn.cursor()
+            curs.execute(query, args)
+            curs.connection.commit()
+            rows = curs.fetchall()
+            return [dict(zip([desc[0] for desc in curs.description], row)) for row in rows]
+        finally:
+            curs.close()
+
+    def list_long_queries(self, longer_than='1m'):
+        return self._query('''SELECT
+              datname, procpid, usename, current_query AS query,
+              waiting, xact_start, query_start, backend_start, client_addr
+            FROM pg_stat_activity
+            WHERE current_query <> '<IDLE>' AND query_start < now() - interval %s
+            ORDER BY query_start;''',
+            longer_than)
+