Make sure bots aren't included in aggregate counts (#1705)

- Fixes #1648

migrations/2021-08-16-004209_fix_remove_bots_from_aggregates/down.sql

@@ -0,0 +1,42 @@
+create or replace function community_aggregates_activity(i text)
+returns table(count_ bigint, community_id_ integer)
+language plpgsql
+as
+$$
+begin
+  return query 
+  select count(*), community_id
+  from (
+    select c.creator_id, p.community_id from comment c
+    inner join post p on c.post_id = p.id
+    where c.published > ('now'::timestamp - i::interval)
+    union
+    select p.creator_id, p.community_id from post p
+    where p.published > ('now'::timestamp - i::interval)  
+  ) a
+  group by community_id;
+end;
+$$;
+
+create or replace function site_aggregates_activity(i text) returns integer
+    language plpgsql
+    as $$
+declare
+   count_ integer;
+begin
+  select count(*)
+  into count_
+  from (
+    select c.creator_id from comment c
+    inner join person u on c.creator_id = u.id
+    where c.published > ('now'::timestamp - i::interval) 
+    and u.local = true
+    union
+    select p.creator_id from post p
+    inner join person u on p.creator_id = u.id
+    where p.published > ('now'::timestamp - i::interval)
+    and u.local = true
+  ) a;
+  return count_;
+end;
+$$;

migrations/2021-08-16-004209_fix_remove_bots_from_aggregates/up.sql

@@ -0,0 +1,52 @@
+-- Make sure bots aren't included in aggregate counts
+
+create or replace function community_aggregates_activity(i text)
+returns table(count_ bigint, community_id_ integer)
+language plpgsql
+as
+$$
+begin
+  return query 
+  select count(*), community_id
+  from (
+    select c.creator_id, p.community_id from comment c
+    inner join post p on c.post_id = p.id
+    inner join person pe on c.creator_id = pe.id
+    where c.published > ('now'::timestamp - i::interval)
+    and pe.bot_account = false
+    union
+    select p.creator_id, p.community_id from post p
+    inner join person pe on p.creator_id = pe.id
+    where p.published > ('now'::timestamp - i::interval)  
+    and pe.bot_account = false
+  ) a
+  group by community_id;
+end;
+$$;
+
+create or replace function site_aggregates_activity(i text) returns integer
+    language plpgsql
+    as $$
+declare
+   count_ integer;
+begin
+  select count(*)
+  into count_
+  from (
+    select c.creator_id from comment c
+    inner join person u on c.creator_id = u.id
+    inner join person pe on c.creator_id = pe.id
+    where c.published > ('now'::timestamp - i::interval) 
+    and u.local = true
+    and pe.bot_account = false
+    union
+    select p.creator_id from post p
+    inner join person u on p.creator_id = u.id
+    inner join person pe on p.creator_id = pe.id
+    where p.published > ('now'::timestamp - i::interval)
+    and u.local = true
+    and pe.bot_account = false
+  ) a;
+  return count_;
+end;
+$$;