issues: 440222719
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| id | node_id | number | title | user | state | locked | assignee | milestone | comments | created_at | updated_at | closed_at | author_association | pull_request | body | repo | type | active_lock_reason | performed_via_github_app | reactions | draft | state_reason |
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| 440222719 | MDU6SXNzdWU0NDAyMjI3MTk= | 448 | _facet_array should work against views | 9599 | closed | 0 | 3268330 | 12 | 2019-05-03T21:08:04Z | 2021-11-16T01:32:05Z | 2021-11-16T01:19:40Z | OWNER | I created this view: https://json-view-facet-bug-demo-j7hipcg4aq-uc.a.run.app/russian-ads-8dbda00/ads_with_targets ``` CREATE VIEW ads_with_targets as select ads.*, json_group_array(targets.name) as target_names from ads join ad_targets on ad_targets.ad_id = ads.id join targets on ad_targets.target_id = targets.id group by ad_targets.ad_id ``` When I try to apply faceting by array it appears to work at first: https://json-view-facet-bug-demo-j7hipcg4aq-uc.a.run.app/russian-ads/ads_with_targets?_facet_array=target_names But actually it's doing the wrong thing - the SQL for the facets uses rowid, but rowid is not present on views at all! These results are incorrect, and clicking to select a facet will fail to produce any rows: https://json-view-facet-bug-demo-j7hipcg4aq-uc.a.run.app/russian-ads/ads_with_targets?_facet_array=target_names&target_names__arraycontains=people_who_match%3Ainterests%3AAfrican-American+Civil+Rights+Movement+%281954%E2%80%9468%29 Here's the SQL it should be using when you select a facet (note that it does not use a rowid): https://json-view-facet-bug-demo-j7hipcg4aq-uc.a.run.app/russian-ads?sql=select+*+from+ads_with_targets+where+id+in+%28%0D%0A++++++++++++select+ads_with_targets.id+from+ads_with_targets%2C+json_each%28ads_with_targets.target_names%29+j%0D%0A++++++++++++where+j.value+%3D+%3Ap0%0D%0A++++++++%29+limit+101&p0=people_who_match%3Ainterests%3ABlack+%28Color%29 So we need to do something a lot smarter here. I'm not sure what the fix will look like, or even if it's feasible given that views don't have a rowid to hook into so the JSON faceting SQL may have to be completely rewritten. ``` datasette publish cloudrun \ russian-ads.db \ --name json-view-facet-bug-demo \ --branch master \ --extra-options "--config sql_time_limit_ms:5000 --config facet_time_limit_ms:5000" ``` | 107914493 | issue | {"url": "https://api.github.com/repos/simonw/datasette/issues/448/reactions", "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} | completed |