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First query: ticker=# explain analyze select * from post, forum where forum.name = post.forum and invisible <> 1 and to_tsvector('english', message) @@ to_tsquery('violence') order by modified desc limit 100; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------ Limit (cost=5959.78..5960.03 rows=100 width=706) (actual time=49.847..50.264 rows=100 loops=1) -> Sort (cost=5959.78..5963.30 rows=1408 width=706) (actual time=49.843..49.982 rows=100 loops=1) Sort Key: post.modified Sort Method: top-N heapsort Memory: 168kB -> Hash Join (cost=621.72..5905.96 rows=1408 width=706) (actual time=4.050..41.238 rows=2055 loops=1) Hash Cond: (post.forum = forum.name) -> Bitmap Heap Scan on post (cost=370.93..5635.71 rows=1435 width=435) (actual time=3.409..32.648 rows=2055 loops=1) Recheck Cond: (to_tsvector('english'::text, message) @@ to_tsquery('violence'::text)) Filter: (invisible <> 1) -> Bitmap Index Scan on idx_message (cost=0.00..370.57 rows=1435 width=0) (actual time=2.984..2.984 rows=2085 loops=1) Index Cond: (to_tsvector('english'::text, message) @@ to_tsquery('violence'::text)) -> Hash (cost=249.97..249.97 rows=66 width=271) (actual time=0.596..0.596 rows=64 loops=1) -> Index Scan using forum_name on forum (cost=0.00..249.97 rows=66 width=271) (actual time=0.093..0.441 rows=64 loops=1) Total runtime: 50.625 ms (14 rows) ticker=# Second query: ticker=# explain analyze select * from post, forum where forum.name = post.forum and invisible <> 1 and ((permission & '127') = permission) and (contrib is null or contrib = ' ' or contrib like '%b%') and to_tsvector('english', message) @@ to_tsquery('violence') order by modified desc limit 100; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=1337.71..1337.76 rows=21 width=706) (actual time=31121.317..31121.736 rows=100 loops=1) -> Sort (cost=1337.71..1337.76 rows=21 width=706) (actual time=31121.313..31121.452 rows=100 loops=1) Sort Key: post.modified Sort Method: top-N heapsort Memory: 168kB -> Nested Loop (cost=978.97..1337.25 rows=21 width=706) (actual time=2.841..31108.926 rows=2055 loops=1) -> Index Scan using forum_name on forum (cost=0.00..250.63 rows=1 width=271) (actual time=0.013..0.408 rows=63 loops=1) Filter: (((contrib IS NULL) OR (contrib = ' '::text) OR (contrib ~~ '%b%'::text)) AND ((permission & 127) = permission)) -> Bitmap Heap Scan on post (cost=978.97..1086.28 rows=27 width=435) (actual time=109.832..493.648 rows=33 loops=63) Recheck Cond: ((to_tsvector('english'::text, post.message) @@ to_tsquery('violence'::text)) AND (post.forum = forum.name)) Filter: (post.invisible <> 1) -> BitmapAnd (cost=978.97..978.97 rows=27 width=0) (actual time=98.832..98.832 rows=0 loops=63) -> Bitmap Index Scan on idx_message (cost=0.00..370.57 rows=1435 width=0) (actual time=0.682..0.682 rows=2085 loops=63) Index Cond: (to_tsvector('english'::text, post.message) @@ to_tsquery('violence'::text)) -> Bitmap Index Scan on post_forum (cost=0.00..607.78 rows=26575 width=0) (actual time=97.625..97.625 rows=22616 loops=63) Index Cond: (post.forum = forum.name) Total runtime: 31122.781 ms (16 rows) ticker=# ticker=# \d post Table "public.post" Column | Type | Modifiers -----------+--------------------------+-------------------------------------------------------- forum | text | number | integer | toppost | integer | views | integer | default 0 login | text | subject | text | message | text | inserted | timestamp with time zone | modified | timestamp with time zone | replied | timestamp with time zone | who | text | reason | text | ordinal | integer | not null default nextval('post_ordinal_seq'::regclass) replies | integer | default 0 invisible | integer | sticky | integer | ip | inet | lock | integer | default 0 pinned | integer | default 0 marked | boolean | Indexes: "post_pkey" PRIMARY KEY, btree (ordinal) "idx_message" gin (to_tsvector('english'::text, message)) "idx_subject" gin (to_tsvector('english'::text, subject)) "post_forum" btree (forum) "post_getlastpost" btree (forum, modified) "post_inserted" btree (inserted) "post_login" btree (login) "post_modified" btree (modified) "post_number" btree (number) "post_order" btree (number, inserted) "post_ordinal" btree (ordinal) "post_top" btree (toppost) "post_toppost" btree (forum, toppost, inserted) Foreign-key constraints: "forum_fk" FOREIGN KEY (forum) REFERENCES forum(name) ON UPDATE CASCADE ON DELETE CASCADE "login_fk" FOREIGN KEY (login) REFERENCES usertable(login) ON UPDATE CASCADE ON DELETE CASCADE Triggers: _tickerforum_logtrigger AFTER INSERT OR DELETE OR UPDATE ON post FOR EACH ROW EXECUTE PROCEDURE _tickerforum.logtrigger('_tickerforum', '20', 'vvvvvvvvvvvvk') Disabled triggers: _tickerforum_denyaccess BEFORE INSERT OR DELETE OR UPDATE ON post FOR EACH ROW EXECUTE PROCEDURE _tickerforum.denyaccess('_tickerforum') ticker=# \d forum Table "public.forum" Column | Type | Modifiers -------------+--------------------------+----------- name | text | not null description | text | long_desc | text | forum_type | integer | forum_order | integer | lastpost | timestamp with time zone | lastperson | text | permission | integer | default 0 modtime | integer | numposts | integer | default 0 type | integer | default 0 readonly | integer | default 0 moderated | integer | default 0 flags | integer | rsslength | text | contrib | text | autolock | text | autodest | text | open | text | Indexes: "forum_pkey" PRIMARY KEY, btree (name) "forum_name" UNIQUE, btree (name) "forum_order" UNIQUE, btree (forum_order) Triggers: _tickerforum_logtrigger AFTER INSERT OR DELETE OR UPDATE ON forum FOR EACH ROW EXECUTE PROCEDURE _tickerforum.logtrigger('_tickerforum', '7', 'k') Disabled triggers: _tickerforum_denyaccess BEFORE INSERT OR DELETE OR UPDATE ON forum FOR EACH ROW EXECUTE PROCEDURE _tickerforum.denyaccess('_tickerforum') (The triggers exist due to replication via Slony) Kevin Grittner wrote: Karl Denninger <karl@xxxxxxxxxxxxx> wrote: |
begin:vcard fn:Karl Denninger n:Denninger;Karl org:Cuda Systems LLC adr;dom:;;314 Olde Post Road;Niceville;FL;32578 email;internet:karl@xxxxxxxxxxxxx tel;work:850-376-9364 tel;fax:850-897-9364 x-mozilla-html:TRUE url:http://market-ticker.org version:2.1 end:vcard
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