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  • Accessing a database's `.json` is slow for very large SQLite files · 3 ✖
id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions issue performed_via_github_app
754184287 https://github.com/simonw/datasette/issues/1111#issuecomment-754184287 https://api.github.com/repos/simonw/datasette/issues/1111 MDEyOklzc3VlQ29tbWVudDc1NDE4NDI4Nw== simonw 9599 2021-01-04T19:57:53Z 2021-01-04T19:57:53Z OWNER

Relevant new feature in sqlite-utils: the ability to use triggers to maintain fast counts. This optimization could help a lot here. https://github.com/simonw/sqlite-utils/issues/212

 
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 Accessing a database's `.json` is slow for very large SQLite files 751195017  
736322290 https://github.com/simonw/datasette/issues/1111#issuecomment-736322290 https://api.github.com/repos/simonw/datasette/issues/1111 MDEyOklzc3VlQ29tbWVudDczNjMyMjI5MA== abdusco 3243482 2020-12-01T08:54:47Z 2020-12-01T08:54:47Z CONTRIBUTOR

Somewhat related: https://github.com/simonw/datasette/issues/859 I fixed the issue with forking and disabling the counts for hidden tables.

 
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 Accessing a database's `.json` is slow for very large SQLite files 751195017  
735320736 https://github.com/simonw/datasette/issues/1111#issuecomment-735320736 https://api.github.com/repos/simonw/datasette/issues/1111 MDEyOklzc3VlQ29tbWVudDczNTMyMDczNg== simonw 9599 2020-11-29T02:46:23Z 2020-11-29T02:46:23Z OWNER

This is a really useful bug report, thanks! I agree: more aggressive timeouts on table counts sounds like the right solution here.

I've learned that avoiding count(*) is crucial for handling these larger databases. Datasette has been getting better about that over time but there are still some edge-cases.

 
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 Accessing a database's `.json` is slow for very large SQLite files 751195017  

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