Does anyone have any metrics on how fast tsearch2 actually is?
I tried it on a synthetic dataset of a million documents of a hundred words each and while insertions were impressively fast I gave up on the search after 10 minutes.
Broken? Unusable slow? This was on the last 7.4 release candidate.
I just created a 1.1million row dataset by copying one of our 30000 row production tables and just taking out the txtidx column. Then I inserted it into itself until it had 1.1 million rows.
Then I created the GiST index - THAT took forever - seriously like 20 mins or half an hour or something.
Now, to find a word:
select * from tsearchtest where ftiidx ## 'curry'; Time: 9760.75 ms
The AND of two words: Time: 103.61 ms
The AND of three words: select * from tsearchtest where ftiidx ## 'curry&green&thai'; Time: 61.86 ms
And now a one word query now that buffers are cached: select * from tsearchtest where ftiidx ## 'curry'; Time: 444.89 ms
So, I have no idea why you think it's slow? Perhaps you forgot the 'create index using gist' step?
Also, if you use the NOT (!) operand, you can get yourself into a really slow situation.
Chris
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