{"html_url": "https://github.com/simonw/sqlite-utils/issues/456#issuecomment-1190277829", "issue_url": "https://api.github.com/repos/simonw/sqlite-utils/issues/456", "id": 1190277829, "node_id": "IC_kwDOCGYnMM5G8jLF", "user": {"value": 536941, "label": "fgregg"}, "created_at": "2022-07-20T13:19:15Z", "updated_at": "2022-07-20T13:19:15Z", "author_association": "CONTRIBUTOR", "body": "hadley wickham's melt and reshape could be good inspo: http://had.co.nz/reshape/introduction.pdf", "reactions": "{\"total_count\": 0, \"+1\": 0, \"-1\": 0, \"laugh\": 0, \"hooray\": 0, \"confused\": 0, \"heart\": 0, \"rocket\": 0, \"eyes\": 0}", "issue": {"value": 1310243385, "label": "feature request: pivot command"}, "performed_via_github_app": null}
{"html_url": "https://github.com/simonw/sqlite-utils/issues/456#issuecomment-1190272780", "issue_url": "https://api.github.com/repos/simonw/sqlite-utils/issues/456", "id": 1190272780, "node_id": "IC_kwDOCGYnMM5G8h8M", "user": {"value": 536941, "label": "fgregg"}, "created_at": "2022-07-20T13:14:54Z", "updated_at": "2022-07-20T13:14:54Z", "author_association": "CONTRIBUTOR", "body": "for example, i have data on votes that look like this:\r\n\r\n| ballot_id | option_id | choice |\r\n|-|-|-|\r\n| 1 | 1 | 0 | \r\n| 1 | 2 | 1 |\r\n| 1 | 3 | 0 |\r\n| 1 | 4 | 1 |\r\n| 2 | 1 | 1 |\r\n| 2 | 2 | 0 |\r\n| 2 | 3 | 1 |\r\n| 2 | 4 | 0 |\r\n\r\nand i want to reshape from this long form to this wide form:\r\n\r\n| ballot_id | option_id_1 | option_id_2 | option_id_3 | option_id_ 4|\r\n|-|-|-|-| -|\r\n| 1 | 0 | 1 | 0 | 1 | \r\n| 2 | 1 | 0 | 1| 0 | \r\n\r\ni could do such a think like this.\r\n\r\n```sql\r\nselect ballot_id, \r\nsum(choice) filter (where option_id = 1) as option_id_1,\r\nsum(choice) filter (where option_id = 2) as option_id_2,\r\nsum(choice) filter (where option_id = 3) as option_id_3,\r\nsum(choice) filter (where option_id = 4) as option_id_4\r\nfrom vote\r\ngroup by ballot_id\r\n```", "reactions": "{\"total_count\": 0, \"+1\": 0, \"-1\": 0, \"laugh\": 0, \"hooray\": 0, \"confused\": 0, \"heart\": 0, \"rocket\": 0, \"eyes\": 0}", "issue": {"value": 1310243385, "label": "feature request: pivot command"}, "performed_via_github_app": null}