Fixed SQL function attribute

hive/db/db_state.py

@@ -3,6 +3,8 @@
 #pylint: disable=too-many-lines
 
 import time
+from time import perf_counter
+
 import logging
 import sqlalchemy
 
@@ -174,12 +176,17 @@ class DbState:
 
             index.create(engine)
 
+        time_start = perf_counter()
+
         # Update count of all child posts (what was hold during initial sync)
         sql = """
               select update_hive_posts_children_count()
               """
         row = DbState.db().query_row(sql)
 
+        time_end = perf_counter()
+        log.info("[INIT] update_hive_posts_children_count executed in %fs", time_end - time_start)
+
         # TODO: #111
         #for key in cls._all_foreign_keys():
         #    log.info("Create fk %s", key.name)

hive/db/schema.py

@@ -658,9 +658,7 @@ def setup(db):
           CREATE OR REPLACE FUNCTION public.update_hive_posts_children_count()
               RETURNS void
               LANGUAGE 'plpgsql'
-
-              COST 100
-              STABLE 
+              VOLATILE
           AS $BODY$
           BEGIN