issue_comments: 473708941
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| html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | issue | performed_via_github_app |
|---|---|---|---|---|---|---|---|---|---|---|---|
| https://github.com/simonw/datasette/issues/419#issuecomment-473708941 | https://api.github.com/repos/simonw/datasette/issues/419 | 473708941 | MDEyOklzc3VlQ29tbWVudDQ3MzcwODk0MQ== | 9599 | 2019-03-17T19:58:11Z | 2019-03-17T19:58:11Z | OWNER | Some problems to solve: * Right now Datasette assumes it can always show the count of rows in a table, because this has been pre-calculated. If a database is mutable the pre-calculation trick no longer works, and for giant tables a `select count(*) from X` query can be expensive to run. Maybe we set a time limit on these? If time limit expires show "many rows"? * Maintaining a content hash of the table no longer makes sense if it is changing (though interestingly there's a `.sha3sum` built-in SQLite CLI command which takes a hash of the content and stays the same even through vacuum runs). Without that we need a different mechanism for calculating table colours. It also means that we can't do the special dbname-hash URL trick (see #418) at all if the database is opened as mutable. | {"total_count": 1, "+1": 1, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} | 421551434 |