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339388215 https://github.com/simonw/datasette/issues/38#issuecomment-339388215 https://api.github.com/repos/simonw/datasette/issues/38 MDEyOklzc3VlQ29tbWVudDMzOTM4ODIxNQ== simonw 9599 2017-10-25T16:25:45Z 2017-10-25T16:25:45Z OWNER First experiment: hook up an iterative CSV dump (just because that’s a tiny bit easier to get started with than iterative a JSON). Have it execute a big select statement and then iterate through the result set 100 rows at a time using sqite fetchmany() - also have it async sleep for a second in between each batch of 100. Can this work without needing python threads? {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Experiment with patterns for concurrent long running queries 268462768  
339388771 https://github.com/simonw/datasette/issues/38#issuecomment-339388771 https://api.github.com/repos/simonw/datasette/issues/38 MDEyOklzc3VlQ29tbWVudDMzOTM4ODc3MQ== simonw 9599 2017-10-25T16:27:29Z 2017-10-25T16:27:29Z OWNER If this does work, I need to figure it what to do about the HTML view. ASsuming I can iteratively produce JSON and CSV, what to do about HTML? One option: render the first 500 rows as HTML, then hand off to an infinite scroll experience that iteratively loads more rows as JSON. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Experiment with patterns for concurrent long running queries 268462768  
339389105 https://github.com/simonw/datasette/issues/38#issuecomment-339389105 https://api.github.com/repos/simonw/datasette/issues/38 MDEyOklzc3VlQ29tbWVudDMzOTM4OTEwNQ== simonw 9599 2017-10-25T16:28:39Z 2017-10-25T16:28:39Z OWNER The gold standard here is to be able to serve up increasingly large datasets without blocking the event loop and while using a sustainable amount of RAM {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Experiment with patterns for concurrent long running queries 268462768  
339389328 https://github.com/simonw/datasette/issues/38#issuecomment-339389328 https://api.github.com/repos/simonw/datasette/issues/38 MDEyOklzc3VlQ29tbWVudDMzOTM4OTMyOA== simonw 9599 2017-10-25T16:29:23Z 2017-10-25T16:29:23Z OWNER Ideally we can get some serious gains from the fact that our database file is opened with the immutable option. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Experiment with patterns for concurrent long running queries 268462768  
392601114 https://github.com/simonw/datasette/issues/38#issuecomment-392601114 https://api.github.com/repos/simonw/datasette/issues/38 MDEyOklzc3VlQ29tbWVudDM5MjYwMTExNA== simonw 9599 2018-05-28T20:47:31Z 2018-05-28T20:47:31Z OWNER I think the way Datasette executes SQL queries in a thread pool introduced in #45 is a good solution for this ticket. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Experiment with patterns for concurrent long running queries 268462768  

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