Test query made

.gitignore

@@ -12,3 +12,4 @@ modules.lst
 jail.ext4
 var/asn.db
 langs/
+*.swp

factoidtest.sql

@@ -0,0 +1,27 @@
+WITH RECURSIVE factoid_lookup_order (depth, namespace, server, alias_namespace, alias_server, parent_namespace, parent_server, recursive) AS (
+  SELECT 0 AS depth, namespace, server, alias_namespace, alias_server, parent_namespace, parent_server, recursive
+    FROM factoid_config 
+    WHERE namespace = '#perlbot' AND server = 'freenode.net' -- PLACEHOLDER TARGET
+  UNION ALL
+  SELECT p.depth+1 AS depth, m.namespace, m.server, m.alias_namespace, m.alias_server, m.parent_namespace, m.parent_server, m.recursive 
+    FROM factoid_config m 
+    INNER JOIN factoid_lookup_order p 
+      ON m.namespace = p.parent_namespace AND m.server = p.parent_server AND p.recursive
+),
+get_latest_factoid (depth, factoid_id, subject, copula, predicate, author, modified_time, compose_macro, protected, original_subject, deleted, server, namespace) AS (
+      SELECT DISTINCT ON(lo.depth) lo.depth, factoid_id, subject, copula, predicate, author, modified_time, compose_macro, protected, original_subject, f.deleted, f.server, f.namespace
+      FROM factoid f
+      INNER JOIN factoid_lookup_order lo 
+        ON COALESCE(f.server, '') = COALESCE(lo.alias_server, lo.server) 
+        AND COALESCE(f.namespace, '') = COALESCE(lo.alias_namespace, lo.namespace)
+      WHERE original_subject = 'hi' -- PLACEHOLDER TARGET
+      ORDER BY depth ASC, factoid_id DESC
+)
+SELECT * FROM get_latest_factoid WHERE NOT deleted ORDER BY depth ASC, factoid_id DESC LIMIT 1;
+
+
+
+--      SELECT factoid_id, subject, copula, predicate, author, modified_time, compose_macro, protected, original_subject
+--      FROM factoid 
+--      WHERE original_subject = ?
+--      ORDER BY factoid_id DESC

postgresql.sql

@@ -6,6 +6,7 @@ ALTER TABLE public.factoid ALTER COLUMN original_subject TYPE text;
 ALTER TABLE public.factoid ALTER COLUMN subject TYPE text;
 ALTER TABLE public.factoid ALTER COLUMN copula TYPE text;
 ALTER TABLE public.factoid ALTER COLUMN author TYPE text;
+ALTER TABLE public.factoid ADD COLUMN deleted boolean DEFAULT false;
 ALTER TABLE public.factoid ADD COLUMN namespace text;
 ALTER TABLE public.factoid ADD COLUMN server text;
 
@@ -14,5 +15,29 @@ UPDATE public.factoid SET namespace=NULL WHERE namespace = '';
 UPDATE public.factoid SET server=NULL WHERE server = '';
 UPDATE public.factoid SET original_subject=split_part(original_subject, E'\034', 4), subject=split_part(subject, E'\034', 4) WHERE namespace IS NOT NULL and server IS NOT NULL;
 
+DROP TABLE IF EXISTS public.factoid_namespace_config;
+DROP TABLE IF EXISTS public.factoid_config;
+CREATE TABLE public.factoid_config (
+   server text NOT NULL,
+   namespace text NOT NULL,
+
+-- this lets me set the explicit name used in the rest of the database
+   alias_server text,
+   alias_namespace text,
+-- this lets me set the explicit name for the parent namespace, this only refers to the server+namespace values, not the alias_* they set
+   parent_server text NOT NULL DEFAULT '',
+   parent_namespace text NOT NULL DEFAULT '',
+-- Should we do the recursive lookup into the parent_*, this is needed because NULL is a valid value for parent_*
+   recursive boolean DEFAULT false,
+   command_prefix text,
+
+   CONSTRAINT unique_config UNIQUE (server, namespace)
+);
+
+INSERT INTO public.factoid_config (server, namespace, alias_server, alias_namespace, recursive, command_prefix) 
+     VALUES ('freenode.net', '#perlbot', 'freenode.net', '#perlbot', true,  NULL),
+            ('',             '',         '',             '',         false, NULL), -- the parent of all
+            ('freenode.net', '#regex',   'freenode.net', '#regex',   false, '!'),
+            ('freenode.net', '#regexen', 'freenode.net', '#regex',   false, '!');
 
 COMMIT;