@Aaron – just found out about this project after creating my own (linked via my name) which is based on Xavier Shay’s PeepCode. Going to dig into this tomorrow, can’t wait.

I have set up texticle on my Heroku app which uses a shared database, and I am finding that the full text search speeds are abominable. When I run a search locally over around 300k rows, I get response times of 10ms or so. Simple search such as Place.search(‘London’)

However, when I run the search on Heroku the search is taking 3,000ms or so. I suspect this is because the full text index is in fact not created on the server, so perhaps Heroku don’t support this and Postgres is simply doing a table scan and converting the text using the to_tsvector method. As Heroku does not allow me direct SQL access to the server, I’m not really sure how I can confirm this (I would use EXPLAIN ANALYZE).

Has anyone got full text indexing working on Heroku for sure i.e. have you tested the performance?

Matt

SELECT “events”.”id” AS t0_r0, “events”.”title” AS t0_r1, “events”.”description” AS t0_r2, “events”.”location” AS t0_r3, “events”.”date_and_time” AS t0_r4, “events”.”contact_email” AS t0_r5, “events”.”url” AS t0_r6, “events”.”lat” AS t0_r7, “events”.”lng” AS t0_r8, “events”.”created_at” AS t0_r9, “events”.”updated_at” AS t0_r10, “events”.”price” AS t0_r11, “events”.”source_url” AS t0_r12, “events”.”referer_url” AS t0_r13, “events”.”guid” AS t0_r14, “tags”.”id” AS t1_r0, “tags”.”name” AS t1_r1 FROM “events” LEFT OUTER JOIN “taggings” ON (“events”.”id” = “taggings”.”taggable_id” AND “taggings”.”taggable_type” = ‘Event’) LEFT OUTER JOIN “tags” ON (“tags”.”id” = “taggings”.”tag_id”) AND taggings.tagger_id IS NULL AND taggings.context = ‘tags’ WHERE ((events.lat>-44.8291028702835 AND events.lat<-27.9804699988679 AND (events.lng164.220125))) AND (((to_tsvector(‘english’, coalesce(“events”.”title”, ”) || ‘ ‘ || coalesce(“events”.”description”, ”)) @@ to_tsquery(”’tri”’)) AND (events.id IN (SELECT taggings.taggable_id FROM taggings JOIN tags ON taggings.tag_id = tags.id AND (tags.name LIKE ‘music’) WHERE taggings.taggable_type = ‘Event’))) AND (date_and_time >= ’2011-02-27 00:00:00.000000′ and date_and_time < '2011-04-03 00:00:00.000000')) ORDER BY rank DESC

ActiveRecord::StatementInvalid (PGError: ERROR: column "rank" does not exist
LINE 1: …nd_time < '2011-04-03 00:00:00.000000')) ORDER BY rank DESC

Cheers,
Julian.

Just an FYI. I ran into a bug that occurs when multiple indexes are defined on the same model. I haven’t quite figured out why it’s failing. I have some “integration” tests that demonstrate the problem. If anyone’s interested, it lives on a fork here: http://github.com/levicook/texticle/tree/

Thanks!

I get:
rake aborted!
uninitialized constant Addres

Any ideas?

mt@laptop /misc/sourceforge/oscurrency$ heroku rake db:migrate
rake aborted!
PGError: ERROR: invalid input syntax for integer: “”:
CREATE index communications_fts_idx
ON communications
USING gin((to_tsvector(‘english’, coalesce(communications.subject, ”) || ‘ ‘ || coalesce(communications.content, ”) || ‘ ‘ || coalesce(communications.recipient_id, ”))))

Hm, it this is for a class that is not indexed. It looks like another problem in the rake task. Deleting the code for this class fixed the problem.