diff --git a/.gitignore b/.gitignore
index 530206d..016047c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,5 +12,6 @@ straight/versions/*
 
 !etc
 etc/*
+!etc/org-sql
 !etc/conf.org
 !etc/dashlogo.png
diff --git a/etc/conf.org b/etc/conf.org
index 43f697f..5322014 100644
--- a/etc/conf.org
+++ b/etc/conf.org
@@ -3330,9 +3330,11 @@ These are variables that I set for my use but will not go into the eventual pack
                                    :hostname "portnoy4prez.yavin4.ch"
                                    :password "org_sql"
                                    :username "org_sql")
-
-      org-sql-debug nil
-
+      ;; some SQL code to denormalize my org-file data for visualization
+      org-sql-post-init-hooks '((file+ (f-join no-littering-etc-directory
+                                               "org_sql" "viz_setup.sql")))
+      org-sql-post-push-hooks '((sql+ "CALL make_vis_tables();"))
+      org-sql-debug t
       org-sql-files '("~/Org/.archive/"
                       "~/Org/general.org_archive"
                       "~/Org/general.org"
diff --git a/etc/org-sql/viz_setup.sql b/etc/org-sql/viz_setup.sql
new file mode 100644
index 0000000..6e19ec2
--- /dev/null
+++ b/etc/org-sql/viz_setup.sql
@@ -0,0 +1,528 @@
+create or replace procedure make_vis_tables()
+language plpgsql
+as $$
+
+declare
+begin
+
+create schema if not exists viz;
+
+create temporary table _scheduled_timestamps as
+select ts.* from planning_entries pe
+  join timestamps ts using (timestamp_id)
+  where
+    pe.planning_type = 'scheduled';
+
+create temporary table _deadline_timestamps as
+select ts.* from planning_entries pe
+  join timestamps ts using (timestamp_id)
+  where
+    pe.planning_type = 'deadline';
+
+create temporary table _closed_timestamps as
+select ts.* from planning_entries pe
+  join timestamps ts using (timestamp_id)
+  where
+    pe.planning_type = 'closed';
+
+create temporary table _tags as
+select hc.headline_id, t.tag from headline_tags t
+  join headline_closures hc on hc.parent_id = t.headline_id
+  union
+  select h.headline_id, t.tag from file_tags t
+  join headlines h on h.outline_hash = t.outline_hash;
+
+create temporary table _category_tags as
+select distinct * from _tags t where t.tag like '\__%';
+
+-- TODO there is a small chance that headlines might have two context tags
+-- if different contexts are explicitly specified on two headlines at different
+-- levels
+create temporary table _context_tags as
+select distinct * from _tags t where t.tag like '@_%';
+
+create temporary table _resource_tags as
+select distinct t.headline_id, array_agg(t.tag) as tags
+  from _tags t
+  where
+    t.tag like '#_%'
+  group by t.headline_id;
+
+create temporary table _incubated_headlines as
+select distinct * from _tags t
+  where
+    t.tag = '%inc';
+
+create temporary table _other_tags as
+select distinct t.headline_id, array_agg(t.tag) as tags
+  from _tags t
+  -- TODO this is not robust code; change will require edits in two places :(
+  where
+    not t.tag like '#_%'
+    and not t.tag like '@_%'
+    and not t.tag like '\__%'
+    and t.tag <> '%inc'
+  group by t.headline_id;
+
+create temporary table _created_timestamps as
+select
+  hp.headline_id,
+  to_timestamp(p.val_text, '[YYYY-MM-DD Dy HH24:MI]') as created_timestamp
+  from headline_properties hp
+  join properties p using (property_id)
+  where
+    p.key_text = 'CREATED'
+    and not p.val_text is NULL;
+
+-- temp table to hold all headlines with scheduled repeaters
+create temporary table _repeaters as
+select * from headlines h
+  join _scheduled_timestamps ts using (headline_id)
+  join timestamp_repeaters tr using (timestamp_id);
+
+create temporary table _todo_closures as
+select
+  parents.headline_id as parent_id,
+  children.headline_id as child_id,
+  hc.depth as depth
+  from headline_closures hc
+  join headlines parents on parents.headline_id = hc.parent_id 
+  join headlines children on children.headline_id = hc.headline_id 
+  where
+    -- this ensures we only get headlines that are children of other headlines
+    hc.depth > 0
+    -- the parents must have a keyword
+    and not parents.keyword is NULL
+    -- the children must have a keyword
+    and not children.keyword is NULL;
+
+create temporary table _iterator_headlines as
+select distinct
+  children.headline_id,
+  children.headline_text,
+  children.keyword
+  from headline_closures hc
+  join headlines parents on parents.headline_id = hc.parent_id
+  join headlines children on children.headline_id = hc.headline_id
+  join headline_properties parent_hp on parents.headline_id = parent_hp.headline_id
+  join properties parent_props on parent_hp.property_id = parent_props.property_id
+  where
+    hc.depth > 0
+    and parent_props.key_text = 'PARENT_TYPE'
+    and parent_props.val_text = 'iterator';
+
+create temporary table _clock_sums as
+select
+  c.headline_id,
+  sum(c.time_end - c.time_start) / 60.0 as clock_sum
+  from clocks c
+  group by c.headline_id;
+
+-- clock sums partitioned by DONE -> TODO state changes (this mostly useful for
+-- repeaters although all headlines are included in this calculation)
+create temporary table _partitioned_clock_sums as
+-- with
+--   -- this table will have all the clock times with the done->todo state changes
+--   -- inserted in between (sorted by clock start time/state change time)
+--   tmp as (
+-- 	select
+--       c.file_path,
+--       c.headline_offset,
+--       c.time_start,
+--       c.time_end,
+--       NULL as state_change_offset
+--       from clocks c
+--     union
+--     select
+--       le.file_path,
+--       le.headline_offset,
+--       le.time_logged as time_start,
+--       NULL as time_end,
+--       le.entry_offset as state_change_offset
+--       from logbook_entries le
+--       join state_changes sc using (file_path, entry_offset)
+--       where
+--         sc.state_old = 'TODO'
+--         and (sc.state_new = 'DONE' or sc.state_new = 'CANC')
+--   ),
+--   -- this table will number each "group" of timestamps, where a "group" is
+--   -- defined by timestamps under the same headline (eg matching file_path and
+--   -- headline_offset) that are partitioned by the todo->done state change
+--   -- entries (if any, if only one or none, there will only be one group under
+--   -- one headline)
+--   --
+--   -- NOTE 1: the WHERE clause is in the next outer query since state-change rows
+--   -- themselves (which are removed by the WHERE) are necessary to define the
+--   -- groups)
+--   -- 
+--   -- NOTE 2: if a headline does not have any state changes, it may get the same
+--   -- group index as the last group of the previous headline. This shouldn't
+--   -- matter, since the GROUP BY in the outer query also takes the file_path and
+--   -- headline_offset into account
+--   grouped as (
+-- 	select
+--       t.file_path, 
+-- 	  t.headline_offset,
+-- 	  t.time_start,
+-- 	  t.time_end,
+-- 	  t.state_change_offset,
+-- 	  sum(case when t.state_change_offset is not null then 1 end)
+-- 	  over (order by t.file_path,
+--               t.headline_offset,
+--               t.time_start desc,
+--               t.state_change_offset desc)
+-- 	  as grp
+--       from tmp t
+--   ),
+--   offsets as (
+--     select
+--       g.file_path,
+--       g.headline_offset,
+--       g.grp,
+--       g.state_change_offset
+--       from grouped g
+--     where
+--       not g.state_change_offset is NULL
+--   )
+--   select
+--     g.file_path,
+--     g.headline_offset,
+--     min(g.time_start) as partitioned_time_start,
+--     max(g.time_end) as partitioned_time_end,
+--     sum(g.time_end - g.time_start) / 60.0 as partitioned_clock_sum,
+--     o.state_change_offset
+--     from grouped g
+--   right join offsets o using (file_path, headline_offset, grp)
+--   where
+--     g.state_change_offset is NULL
+--   group by g.file_path, g.headline_offset, g.grp, o.state_change_offset;
+
+with
+  -- this table will have all the clock times with the done->todo state changes
+  -- inserted in between (sorted by clock start time/state change time)
+  tmp as (
+	select
+      c.headline_id,
+      c.time_start,
+      c.time_end,
+      NULL as state_change_id
+      from clocks c
+    union
+    select
+      le.headline_id,
+      le.time_logged as time_start,
+      NULL as time_end,
+      le.entry_id as state_change_id
+      from logbook_entries le
+      join state_changes sc using (entry_id)
+      where
+        sc.state_old = 'TODO'
+        and (sc.state_new = 'DONE' or sc.state_new = 'CANC')
+  ),
+  -- this table will number each "group" of timestamps, where a "group" is
+  -- defined by timestamps under the same headline (eg matching file_path and
+  -- headline_offset) that are partitioned by the todo->done state change
+  -- entries (if any, if only one or none, there will only be one group under
+  -- one headline)
+  --
+  -- NOTE 1: the WHERE clause is in the next outer query since state-change rows
+  -- themselves (which are removed by the WHERE) are necessary to define the
+  -- groups)
+  -- 
+  -- NOTE 2: if a headline does not have any state changes, it may get the same
+  -- group index as the last group of the previous headline. This shouldn't
+  -- matter, since the GROUP BY in the outer query also takes the file_path and
+  -- headline_offset into account
+  grouped as (
+	select
+	  t.headline_id,
+	  t.time_start,
+	  t.time_end,
+	  t.state_change_id,
+	  sum(case when t.state_change_id is not null then 1 end)
+	  over (order by t.headline_id, t.time_start desc, t.state_change_id desc)
+	  as grp
+      from tmp t
+  ),
+  ids as (
+    select g.headline_id, g.grp, g.state_change_id from grouped g
+    where
+      not g.state_change_id is NULL
+  ),
+  sums as (
+	select
+      g.headline_id,
+	  g.grp,
+      min(g.time_start) as partitioned_time_start,
+      max(g.time_end) as partitioned_time_end,
+      sum(g.time_end - g.time_start) / 60.0 as partitioned_clock_sum
+      from grouped g
+    where
+      g.state_change_id is NULL
+    group by g.headline_id, g.grp
+  )
+  select
+    o.headline_id,
+    o.state_change_id,
+    s.partitioned_time_start,
+    s.partitioned_time_end,
+    s.partitioned_clock_sum
+    from ids o
+  left join sums s using (headline_id, grp);
+
+create temporary table _habit_headlines as
+select
+  r.*,
+  cs.partitioned_clock_sum,
+  s.state_old,
+  s.state_new,
+  to_timestamp(le.time_logged) as closed_timestamp
+  from _repeaters r
+  join headline_properties hp using (headline_id)
+  join properties p using (property_id)
+  join _partitioned_clock_sums cs using (headline_id)
+  left join state_changes s
+  on s.entry_id = cs.state_change_id
+  left join logbook_entries le
+  on le.headline_id = r.headline_id and le.entry_id = s.entry_id
+  where
+    p.key_text = 'STYLE'
+    and p.val_text = 'habit';
+
+create temporary table _repeater_headlines as
+select
+  r.*,
+  cs.partitioned_clock_sum,
+  s.state_old,
+  s.state_new,
+  to_timestamp(le.time_logged) as closed_timestamp
+  from _repeaters r
+  join _partitioned_clock_sums cs using (headline_id)
+  left join state_changes s
+  on s.entry_id = cs.state_change_id
+  left join logbook_entries le
+  on le.headline_id = r.headline_id and le.entry_id = s.entry_id
+  where
+    not exists (select * from _habit_headlines habits
+      where r.headline_id = habits.headline_id);
+
+create temporary table _project_task_headlines as
+select distinct h.* from _todo_closures tc
+  join headlines h on tc.child_id = h.headline_id
+  where
+    not exists (select * from _iterator_headlines i
+                 where i.headline_id = h.headline_id);
+
+-- drop table if exists viz.project_toplevel_headlines;
+-- create table viz.project_toplevel_headlines as
+-- select distinct
+--   h.file_path,
+--   h.headline_offset,
+--   h.keyword,
+--   h.headline_text
+--   from _todo_closures tc0
+--   join headlines h
+--   on tc0.file_path = h.file_path and tc0.parent_offset = h.headline_offset
+--   where
+--     tc0.depth = 1
+--     and not exists (select * from _todo_closures tc1
+--                    where tc1.child_offset = tc0.parent_offset);
+
+create temporary table _task_parent_mappings as
+with
+  maxdepth as (
+	select t.child_id, max(t.depth) as depth
+    from _todo_closures t
+    group by t.child_id
+  )
+select tc.parent_id, tc.child_id from maxdepth m
+  join _todo_closures tc using (child_id, depth);
+
+-- -- TODO this will be more useful if I can also link it easily with the
+-- -- toplevel headline
+-- drop table if exists viz.project_parent_headlines;
+-- create table viz.project_parent_headlines as
+-- select distinct
+--   h.file_path,
+--   h.headline_offset,
+--   h.keyword,
+--   h.headline_text
+--   from _todo_closures tc
+--   join headlines h
+--   on tc.file_path = h.file_path and tc.parent_offset = h.headline_offset
+--   where
+--     not exists
+--       (select * from _iterator_headlines i
+--         where
+--          i.file_path = h.file_path
+--          and i.headline_offset = h.headline_offset)
+--     and not exists
+--       (select * from viz.project_toplevel_headlines t
+--         where
+--           t.file_path = h.file_path
+--           and t.headline_offset = h.headline_offset);
+
+drop table if exists viz.sleep_length;
+create table viz.sleep_length as
+with
+  tmp as (
+	select distinct 
+	to_timestamp(c.time_start)::time at time zone 'US/Eastern' as time_start_clock,
+	c.time_start,
+	c.time_end  
+	from _repeater_headlines hh
+  	join clocks c using (headline_id)
+      where
+        hh.headline_text = 'sleep')
+  select distinct
+    to_timestamp(time_start) as sleep_timestamp,
+    (time_end - time_start) / 3600.0 as sleep_hours,
+    time_start_clock as sleep_start_clock,
+    -- day of week that sleep starts; subtract 12 hours off timestamp to count
+    -- bedtime after midnight as starting on the previous day
+    extract(dow from to_timestamp(time_start - 43200) at time zone 'US/Eastern')
+      as sleep_start_day,
+    -- offset from target bedtime start (assume target bedtime is 23:45)
+    mod((extract(hour from time_start_clock) * 60
+		 + extract(minute from time_start_clock) + 15 + 720)::bigint,
+		1440) / 1440.0 * 24 - 12 as sleep_start_offset from tmp;
+
+create temporary table _atomic_tasks as
+select * from headlines h
+  where
+    not h.keyword is NULL
+    and not exists (select * from _project_task_headlines pt
+      where pt.headline_id = h.headline_id)
+    -- and not exists (select * from viz.project_parent_headlines pp
+    --   where pp.headline_id = h.headline_id)
+    -- and not exists (select * from viz.project_toplevel_headlines pl
+    --   where pl.headline_id = h.headline_id)
+    and not exists (select * from _task_parent_mappings m
+      where m.parent_id = h.headline_id)
+    and not exists (select * from _repeaters r
+      where r.headline_id = h.headline_id)
+    and not exists (select * from _iterator_headlines i
+      where i.headline_id = h.headline_id);
+
+create temporary table _iterator_tasks as
+select * from headlines h
+  where
+    not h.keyword is NULL
+    and exists (select * from _iterator_headlines i
+      where i.headline_id = h.headline_id)
+    and not exists (select * from _task_parent_mappings m
+      where m.parent_id = h.headline_id);
+
+-- drop table if exists viz.atomic_tasks;
+-- create table viz.atomic_tasks as
+-- select
+--   a.*,
+--   cs.clock_sum,
+--   to_timestamp(s.time_start) as scheduled_time,
+--   to_timestamp(d.time_start) as deadline_time,
+--   to_timestamp(c.time_start) as closed_time,
+--   ct.tag as category,
+--   xt.tag as context,
+--   rt.tags as resources,
+--   t.tags as tags,
+--   cr.created_timestamp,
+--   (ih.tag is not NULL) as incubated
+--   from _atomic_tasks a
+--   left join _clock_sums cs using (headline_offset, file_path)
+--   left join _scheduled_timestamps s using (file_path, headline_offset)
+--   left join _deadline_timestamps d using (file_path, headline_offset)
+--   left join _closed_timestamps c using (file_path, headline_offset)
+--   left join _category_tags ct using (file_path, headline_offset)
+--   left join _context_tags xt using (file_path, headline_offset)
+--   left join _resource_tags rt using (file_path, headline_offset)
+--   left join _other_tags t using (file_path, headline_offset)
+--   left join _created_timestamps cr using (file_path, headline_offset)
+--   left join _incubated_headlines ih using (file_path, headline_offset);
+
+-- TODO this doesn't have iterators (yet)
+drop table if exists viz.all_tasks;
+create table viz.all_tasks as
+with
+  all_tasks as (
+    select
+      r.headline_id,
+      r.state_new as keyword,
+      r.partitioned_clock_sum as clock_sum,
+      r.closed_timestamp,
+      'repeater' as task_type
+      from _repeater_headlines r
+    union all
+    select
+      h.headline_id,
+      h.state_new as keyword,
+      h.partitioned_clock_sum as clock_sum,
+      h.closed_timestamp,
+      'habit' as task_type
+      from _habit_headlines h
+    union all
+    -- TODO this is redundant to have 'tasks' made twice from different sources
+    select
+      a.headline_id,
+      a.keyword,
+      cs.clock_sum,
+      to_timestamp(c.time_start) as closed_timestamp,
+      'atomic' as task_type
+      from _atomic_tasks a
+      left join _clock_sums cs using (headline_id)
+      left join _closed_timestamps c using (headline_id)
+    union all
+    select
+      p.headline_id,
+      p.keyword,
+      cs.clock_sum,
+      to_timestamp(c.time_start) as closed_timestamp,
+      'project' as task_type
+      from _project_task_headlines p
+      left join _clock_sums cs using (headline_id)
+      left join _closed_timestamps c using (headline_id)
+    union all
+    select
+      i.headline_id,
+      i.keyword,
+      cs.clock_sum,
+      to_timestamp(c.time_start) as closed_timestamp,
+      'iterator' as task_type
+      from _iterator_tasks i
+      left join _clock_sums cs using (headline_id)
+      left join _closed_timestamps c using (headline_id)
+  )
+select
+  f.file_path,
+  a.*,
+  tm.parent_id as project_parent_id,
+  to_timestamp(s.time_start) as scheduled_timestamp,
+  to_timestamp(d.time_start) as deadline_timestamp,
+  h.headline_text,
+  h.effort,
+  h.priority,
+  h.is_archived,
+  h.is_commented,
+  h.content,
+  ct.tag as category,
+  xt.tag as context,
+  rt.tags as resources,
+  t.tags as tags,
+  cr.created_timestamp,
+  (ih.tag is not NULL) as incubated
+  from all_tasks a
+  join headlines h using (headline_id)
+  join file_metadata f using (outline_hash)
+  left join _scheduled_timestamps s using (headline_id)
+  left join _deadline_timestamps d using (headline_id)
+  left join _category_tags ct using (headline_id)
+  left join _context_tags xt using (headline_id)
+  left join _resource_tags rt using (headline_id)
+  left join _other_tags t using (headline_id)
+  left join _created_timestamps cr using (headline_id)
+  left join _incubated_headlines ih using (headline_id)
+  left join _task_parent_mappings tm on tm.child_id = h.headline_id
+  order by a.headline_id, a.closed_timestamp desc;
+
+end
+
+$$;