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/pull/1893#issuecomment-1316256386,https://api.github.com/repos/simonw/datasette/issues/1893,1316256386,IC_kwDOBm6k_c5OdHqC,95570,2022-11-16T03:18:06Z,2022-11-16T03:18:06Z,CONTRIBUTOR,"> If you can get a version of this working with table and column autocompletion just using a static JavaScript object in the source code with the right tables and columns, I'm happy to take on the work of turning that static object into something that Datasette includes in the page itself with all of the correct values. This version ""sort of"" works when on the main database page where the template passes the relevant data https://github.com/bgrins/datasette/commit/8431c98850c7a552dbcde2a4dd0c3dc942a97d25 by doing this and passing that into the `schema` object: ``` let TABLES_DATA = []; {% if tables is defined %} TABLES_DATA = {{ tables | tojson(indent=2) }}; {% endif %} // Turn into an object, shaped like https://github.com/codemirror/lang-sql/blob/ebf115fffdbe07f91465ccbd82868c587f8182bc/test/test-complete.ts#L27. const TABLES_SCHEMA = Object.fromEntries( new Map( TABLES_DATA.map((table) => { return [table.name, table.columns]; }) ).entries() ); ``` But there are a number of papercuts with it - it's not escaping table names with spaces (likely be fixable from the data being passed into the view) but mainly it doesn't seem to autocomplete columns. I think it might only want to do it when you first type the table name from my read of https://github.com/codemirror/lang-sql/blob/ebf115fffdbe07f91465ccbd82868c587f8182bc/test/test-complete.ts#L37. It's possible I'm just passing something wrong, but it may end up being something that needs feature work upstream. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/pull/1893#issuecomment-1316243602,https://api.github.com/repos/simonw/datasette/issues/1893,1316243602,IC_kwDOBm6k_c5OdEiS,95570,2022-11-16T03:11:46Z,2022-11-16T03:11:46Z,CONTRIBUTOR,Was just reviewing the SQL options and there's an [upperCaseKeywords](https://github.com/codemirror/lang-sql#user-content-sqlconfig.uppercasekeywords) if we'd rather have SELECT vs select. Datasette seems to prefer lowercase so probably best to keep it as-is,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/pull/1893#issuecomment-1316041828,https://api.github.com/repos/simonw/datasette/issues/1893,1316041828,IC_kwDOBm6k_c5OcTRk,95570,2022-11-15T23:51:35Z,2022-11-15T23:51:35Z,CONTRIBUTOR,"I experimented with autocompleting the actual schema in https://github.com/bgrins/datasette/commit/8431c98850c7a552dbcde2a4dd0c3dc942a97d25, but it would need some work (current problems with it listed in the commit message there)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/pull/1893#issuecomment-1315869946,https://api.github.com/repos/simonw/datasette/issues/1893,1315869946,IC_kwDOBm6k_c5ObpT6,95570,2022-11-15T21:12:38Z,2022-11-15T21:12:38Z,CONTRIBUTOR,https://github.com/Sphinxxxx/cm-resize isn't compatible with 6. There's a suggestion to try using CSS resize in https://discuss.codemirror.net/t/resizing-codemirror-6/3265/2,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/pull/1893#issuecomment-1315869040,https://api.github.com/repos/simonw/datasette/issues/1893,1315869040,IC_kwDOBm6k_c5ObpFw,95570,2022-11-15T21:11:42Z,2022-11-15T21:11:42Z,CONTRIBUTOR,"extraKeys is done - Shift+Enter is added in the helper function, and it appears that the Tab behavior now defaults to what the `Tab: false` setting was doing (allowing it to escape to the form)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/pull/1893#issuecomment-1315853097,https://api.github.com/repos/simonw/datasette/issues/1893,1315853097,IC_kwDOBm6k_c5OblMp,95570,2022-11-15T20:55:40Z,2022-11-15T20:55:40Z,CONTRIBUTOR,Should also minify the bundled output,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1450363982, https://github.com/simonw/datasette/issues/1886#issuecomment-1314241058,https://api.github.com/repos/simonw/datasette/issues/1886,1314241058,IC_kwDOBm6k_c5OVboi,25778,2022-11-14T19:06:35Z,2022-11-14T19:06:35Z,CONTRIBUTOR,"This probably counts as a case study: https://github.com/eyeseast/spatial-data-cooking-show. Even has video. Seriously, though, this workflow has become integral to my work with reporters and editors across USA TODAY Network. Very often, I get sent a folder of data in mixed formats, with a vague ask of how we should communicate some part of it to users. Datasette and its constellation of tools makes it easy to get a quick look at that data, run exploratory queries, map it and ask questions to figure out what's important to show. And then I export a version of the data that's exactly what I need for display. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1447050738, https://github.com/simonw/datasette/issues/1884#issuecomment-1314066229,https://api.github.com/repos/simonw/datasette/issues/1884,1314066229,IC_kwDOBm6k_c5OUw81,25778,2022-11-14T16:48:35Z,2022-11-14T16:48:35Z,CONTRIBUTOR,"I'm realizing I don't know if a virtual table will ever return a count. Maybe it depends on the implementation. For these three, just checking now, it'll always return zero. That said, I'm not sure there's any downside to having them return zero and caching that. (They're hidden, too.) ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1439009231, https://github.com/simonw/datasette/issues/1884#issuecomment-1313962183,https://api.github.com/repos/simonw/datasette/issues/1884,1313962183,IC_kwDOBm6k_c5OUXjH,25778,2022-11-14T15:46:32Z,2022-11-14T15:46:32Z,CONTRIBUTOR,"It does work, though I think it's probably still worth excluding virtual tables that will always be zero. Here's the same inspection as before, now with `--load-extension spatialite`: ```json { ""alltheplaces"": { ""hash"": ""0843cfe414439ab903c22d1121b7ddbc643418c35c7f0edbcec82ef1452411df"", ""size"": 963375104, ""file"": ""alltheplaces.db"", ""tables"": { ""spatial_ref_sys"": { ""count"": 6215 }, ""spatialite_history"": { ""count"": 18 }, ""sqlite_sequence"": { ""count"": 2 }, ""geometry_columns"": { ""count"": 3 }, ""spatial_ref_sys_aux"": { ""count"": 6164 }, ""views_geometry_columns"": { ""count"": 0 }, ""virts_geometry_columns"": { ""count"": 0 }, ""geometry_columns_statistics"": { ""count"": 3 }, ""views_geometry_columns_statistics"": { ""count"": 0 }, ""virts_geometry_columns_statistics"": { ""count"": 0 }, ""geometry_columns_field_infos"": { ""count"": 0 }, ""views_geometry_columns_field_infos"": { ""count"": 0 }, ""virts_geometry_columns_field_infos"": { ""count"": 0 }, ""geometry_columns_time"": { ""count"": 3 }, ""geometry_columns_auth"": { ""count"": 3 }, ""views_geometry_columns_auth"": { ""count"": 0 }, ""virts_geometry_columns_auth"": { ""count"": 0 }, ""data_licenses"": { ""count"": 10 }, ""sql_statements_log"": { ""count"": 0 }, ""states"": { ""count"": 56 }, ""counties"": { ""count"": 3234 }, ""idx_states_geometry_rowid"": { ""count"": 56 }, ""idx_states_geometry_node"": { ""count"": 3 }, ""idx_states_geometry_parent"": { ""count"": 2 }, ""idx_counties_geometry_rowid"": { ""count"": 3234 }, ""idx_counties_geometry_node"": { ""count"": 98 }, ""idx_counties_geometry_parent"": { ""count"": 97 }, ""idx_places_geometry_rowid"": { ""count"": 1236796 }, ""idx_places_geometry_node"": { ""count"": 38163 }, ""idx_places_geometry_parent"": { ""count"": 38162 }, ""places"": { ""count"": 1332609 }, ""SpatialIndex"": { ""count"": 0 }, ""ElementaryGeometries"": { ""count"": 0 }, ""KNN"": { ""count"": 0 }, ""idx_states_geometry"": { ""count"": 56 }, ""idx_counties_geometry"": { ""count"": 3234 }, ""idx_places_geometry"": { ""count"": 1236796 } } } } ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1439009231, https://github.com/simonw/datasette/issues/1886#issuecomment-1313252879,https://api.github.com/repos/simonw/datasette/issues/1886,1313252879,IC_kwDOBm6k_c5ORqYP,883348,2022-11-14T08:10:23Z,2022-11-14T08:10:23Z,CONTRIBUTOR,"Hi @simonw and thanks for the great tools you're publishing, your dedication is inspiring! I work for the French Ministry of Culture on a surveying tool for objects protected for their historical value. It is part of a program building modern public services called [beta.gouv.fr](https://beta.gouv.fr/). In that context I'm using data published by the Ministry that I have ingested into datasette and published on a free Fly instance : https://collectif-objets-datasette.fly.dev . I have also ingested another data set with infos about french cities on this instance so that I can perform joined queries. The surveying tool synchronizes its data regularly from this datasette instance, and I also use it to perform queries when asked generic questions about the distribution of objects. (The data is not very accessible as it's undocumented and for internal usage mostly)","{""total_count"": 3, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 3, ""rocket"": 0, ""eyes"": 0}",1447050738, https://github.com/simonw/datasette/issues/1884#issuecomment-1309735529,https://api.github.com/repos/simonw/datasette/issues/1884,1309735529,IC_kwDOBm6k_c5OEPpp,25778,2022-11-10T03:57:23Z,2022-11-10T03:57:23Z,CONTRIBUTOR,Here's how to get a list of virtual tables: https://stackoverflow.com/questions/46617118/how-to-fetch-names-of-virtual-tables,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1439009231, https://github.com/simonw/datasette/issues/1871#issuecomment-1309650806,https://api.github.com/repos/simonw/datasette/issues/1871,1309650806,IC_kwDOBm6k_c5OD692,3556,2022-11-10T01:38:58Z,2022-11-10T01:38:58Z,CONTRIBUTOR,"> Realized the API explorer doesn't need the API key piece at all - it can work with standard cookie-based auth. > > This also reflects how most plugins are likely to use this API, where they'll be adding JavaScript that uses `fetch()` to call the write API directly. I agree (that's what I did with the previous insert plugin), maybe a complete example using `fetch()` in the documentation would be valuable as a β€œGetting started with the API” or similar?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1427293909, https://github.com/simonw/sqlite-utils/issues/511#issuecomment-1304320521,https://api.github.com/repos/simonw/sqlite-utils/issues/511,1304320521,IC_kwDOCGYnMM5NvloJ,7908073,2022-11-04T22:54:09Z,2022-11-04T22:59:54Z,CONTRIBUTOR,I ran `PRAGMA integrity_check` and it returned `ok`. but then I tried restoring from a backup and I didn't get this `IntegrityError: constraint failed` error. So I think it was just something wrong with my database. If it happens again I will first try to reindex and see if that fixes the issue,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1436539554, https://github.com/simonw/sqlite-utils/issues/511#issuecomment-1304078945,https://api.github.com/repos/simonw/sqlite-utils/issues/511,1304078945,IC_kwDOCGYnMM5Nuqph,7908073,2022-11-04T19:38:36Z,2022-11-04T20:13:17Z,CONTRIBUTOR,"Even more bizarre, the source db only has one record and the target table has no conflicting record: ``` 875 0.3s lb:/ (main|✚2) [0|0]🌺 sqlite-utils tube_71.db 'select * from media where path = ""https://archive.org/details/088ghostofachanceroygetssackedrevengeofthelivinglunchdvdripxvidphz""' | jq [ { ""size"": null, ""time_created"": null, ""play_count"": 1, ""language"": null, ""view_count"": null, ""width"": null, ""height"": null, ""fps"": null, ""average_rating"": null, ""live_status"": null, ""age_limit"": null, ""uploader"": null, ""time_played"": 0, ""path"": ""https://archive.org/details/088ghostofachanceroygetssackedrevengeofthelivinglunchdvdripxvidphz"", ""id"": ""088ghostofachanceroygetssackedrevengeofthelivinglunchdvdripxvidphz/074 - Home Away from Home, Rainy Day Robot, Odie the Amazing DVDRip XviD [PhZ].mkv"", ""ie_key"": ""ArchiveOrg"", ""playlist_path"": ""https://archive.org/details/088ghostofachanceroygetssackedrevengeofthelivinglunchdvdripxvidphz"", ""duration"": 1424.05, ""tags"": null, ""title"": ""074 - Home Away from Home, Rainy Day Robot, Odie the Amazing DVDRip XviD [PhZ].mkv"" } ] 875 0.3s lb:/ (main|✚2) [0|0]πŸ₯§ sqlite-utils video.db 'select * from media where path = ""https://archive.org/details/088ghostofachanceroygetssackedrevengeofthelivinglunchdvdripxvidphz""' | jq [] ``` I've been able to use this code successfully several times before so not sure what's causing the issue. I guess the way that I'm handling multiple databases is an issue, though it hasn't ever inserted into the source db, not sure what's different. The only reasonable explanation is that it is trying to insert into the source db from the source db for some reason? Or maybe sqlite3 is checking the source db for primary key violation because the table name is the same","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1436539554, https://github.com/simonw/sqlite-utils/issues/50#issuecomment-1303660293,https://api.github.com/repos/simonw/sqlite-utils/issues/50,1303660293,IC_kwDOCGYnMM5NtEcF,7908073,2022-11-04T14:38:36Z,2022-11-04T14:38:36Z,CONTRIBUTOR,where did you see the limit as 999? I believe the limit has been 32766 for quite some time. If you could detect which one this could speed up batch insert of some types of data significantly,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",473083260, https://github.com/simonw/sqlite-utils/issues/507#issuecomment-1297859539,https://api.github.com/repos/simonw/sqlite-utils/issues/507,1297859539,IC_kwDOCGYnMM5NW8PT,7908073,2022-11-01T00:40:16Z,2022-11-01T00:40:16Z,CONTRIBUTOR,"Ideally people could fix their data if they run into this issue. If you are using filenames try [convmv](https://linux.die.net/man/1/convmv) ``` convmv --preserve-mtimes -f utf8 -t utf8 --notest -i -r . ``` maybe this script will also help: ```py import argparse, shutil from pathlib import Path import ftfy from xklb import utils from xklb.utils import log def parse_args() -> argparse.Namespace: parser = argparse.ArgumentParser() parser.add_argument(""paths"", nargs='*') parser.add_argument(""--verbose"", ""-v"", action=""count"", default=0) args = parser.parse_args() log.info(utils.dict_filter_bool(args.__dict__)) return args def rename_invalid_paths() -> None: args = parse_args() for path in args.paths: log.info(path) for p in sorted([str(p) for p in Path(path).rglob(""*"")], key=len): fixed = ftfy.fix_text(p, uncurl_quotes=False).replace(""\r\n"", ""\n"").replace(""\r"", ""\n"").replace(""\n"", """") if p != fixed: try: shutil.move(p, fixed) except FileNotFoundError: log.warning(""FileNotFound. %s"", p) else: log.info(fixed) if __name__ == ""__main__"": rename_invalid_paths() ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1430325103, https://github.com/simonw/sqlite-utils/issues/448#issuecomment-1297703307,https://api.github.com/repos/simonw/sqlite-utils/issues/448,1297703307,IC_kwDOCGYnMM5NWWGL,167893,2022-10-31T21:23:51Z,2022-10-31T21:27:32Z,CONTRIBUTOR,"The Windows aspect is a red herring: OP's sample above produces the same error on Linux. (Though I don't know what's going on with the CI). The same error can also be obtained by passing an `io` from a file opened in non-binary mode (`'r'` as opposed to `'rb'`) to `rows_from_file()`. This is how I got here. The fix for my case is easy: open the file in mode `'rb'`. The analagous fix for OP's problem also works: use `BytesIO` in place of `StringIO`. Minimal test case (derived from [utils.py](https://github.com/simonw/sqlite-utils/blob/main/sqlite_utils/utils.py#L304)): ``` python import io from typing import cast #fp = io.StringIO(""id,name\n1,Cleo"") # error fp = io.BytesIO(bytes(""id,name\n1,Cleo"", encoding='utf-8')) # okay reader = io.BufferedReader(cast(io.RawIOBase, fp)) reader.peek(1) # exception thrown here ``` I see the signature of `rows_from_file()` correctly has `fp: BinaryIO` but I guess you'd need either a runtime type check for that (not all `io`s have `mode()`), or to catch the `AttributeError` on `peek()` to produce a better error for users. Neither option is ideal. Some thoughts on testing binary-ness of `io`s in this SO question: https://stackoverflow.com/questions/44584829/how-to-determine-if-file-is-opened-in-binary-or-text-mode","{""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1279144769, https://github.com/simonw/datasette/issues/1872#issuecomment-1296080804,https://api.github.com/repos/simonw/datasette/issues/1872,1296080804,IC_kwDOBm6k_c5NQJ-k,192568,2022-10-30T03:06:32Z,2022-10-30T03:06:32Z,CONTRIBUTOR,"I updated datasette-publish-vercel to 0.14.2 in requirements.txt And the site is back up! Is there a way that we can get some sort of notice when something like this will have critical impact on website function?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1428560020, https://github.com/simonw/datasette/issues/1872#issuecomment-1296076803,https://api.github.com/repos/simonw/datasette/issues/1872,1296076803,IC_kwDOBm6k_c5NQJAD,192568,2022-10-30T02:50:34Z,2022-10-30T02:50:34Z,CONTRIBUTOR,"should this issue be under https://github.com/simonw/datasette-publish-vercel/issues ? Perhaps I just need to update: datasette-publish-vercel==0.11 in requirements.txt? I'll try that and see what happens... ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1428560020, https://github.com/simonw/datasette/pull/1870#issuecomment-1295667649,https://api.github.com/repos/simonw/datasette/issues/1870,1295667649,IC_kwDOBm6k_c5NOlHB,536941,2022-10-29T00:52:43Z,2022-10-29T00:53:43Z,CONTRIBUTOR,"> Are you saying that I can build a container, but then when I run it and it does `datasette serve -i data.db ...` it will somehow modify the image, or create a new modified filesystem layer in the runtime environment, as a result of running that `serve` command? Somehow, `datasette serve -i data.db` will lead to the `data.db` being modified, which will trigger a [copy-on-write](https://docs.docker.com/storage/storagedriver/#the-copy-on-write-cow-strategy) of `data.db` into the read-write layer of the container. I don't understand **how** that happens. it kind of feels like a bug in sqlite, but i can't quite follow the sqlite code.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1426379903, https://github.com/simonw/datasette/pull/1870#issuecomment-1294285471,https://api.github.com/repos/simonw/datasette/issues/1870,1294285471,IC_kwDOBm6k_c5NJTqf,536941,2022-10-28T01:06:03Z,2022-10-28T01:06:03Z,CONTRIBUTOR,"as far as i can tell, [this is where the ""immutable"" argument is used](https://github.com/sqlite/sqlite/blob/c97bb14fab566f6fa8d967c8fd1e90f3702d5b73/src/pager.c#L4926-L4931) in sqlite: ```c pPager->noLock = sqlite3_uri_boolean(pPager->zFilename, ""nolock"", 0); if( (iDc & SQLITE_IOCAP_IMMUTABLE)!=0 || sqlite3_uri_boolean(pPager->zFilename, ""immutable"", 0) ){ vfsFlags |= SQLITE_OPEN_READONLY; goto act_like_temp_file; } ``` so it does set the read only flag, but then has a goto.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1426379903, https://github.com/simonw/datasette/pull/1870#issuecomment-1294237783,https://api.github.com/repos/simonw/datasette/issues/1870,1294237783,IC_kwDOBm6k_c5NJIBX,536941,2022-10-27T23:42:18Z,2022-10-27T23:42:18Z,CONTRIBUTOR,Relevant sqlite forum thread: https://www.sqlite.org/forum/forumpost/02f7bda329f41e30451472421cf9ce7f715b768ce3db02797db1768e47950d48,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1426379903, https://github.com/simonw/datasette/issues/1851#issuecomment-1292592210,https://api.github.com/repos/simonw/datasette/issues/1851,1292592210,IC_kwDOBm6k_c5NC2RS,25778,2022-10-26T20:03:46Z,2022-10-26T20:03:46Z,CONTRIBUTOR,"Yeah, every time I see something cool done with triggers, I remember that I need to start using triggers.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1421544654, https://github.com/simonw/datasette/issues/1851#issuecomment-1292519956,https://api.github.com/repos/simonw/datasette/issues/1851,1292519956,IC_kwDOBm6k_c5NCkoU,15178711,2022-10-26T19:20:33Z,2022-10-26T19:20:33Z,CONTRIBUTOR,"> This could use a new plugin hook, too. I don't want to complicate your life too much, but for things like GIS, I'd want a way to turn regular JSON into SpatiaLite geometries or combine X/Y coordinates into point geometries and such. Happy to help however I can. @eyeseast Maybe you could do this with triggers? Like you can insert JSON-friendly data into a ""raw"" table, and create a trigger that transforms that inserted data into the proper table Here's an example: ```sql -- meant to be updated from a Datasette insert create table points_raw(longitude int, latitude int); -- the target table with proper spatliate geometries create table points(point geometry); CREATE TRIGGER insert_points_raw INSERT ON points_raw BEGIN insert into points(point) values (makepoint(new.longitude, new.latitude)) END; ``` You could then POST a new row to `points_raw` like this: ``` POST /db/points_raw Authorization: Bearer xxx Content-Type: application/json { ""row"": { ""longitude"": 27.64356, ""latitude"": -47.29384 } } ``` Then SQLite with run the trigger and insert a new row in `points` with the correct geometry point. Downside is you'd have duplicated data with `points_raw`, but maybe it could be a `TEMP` table (or have a cron that deletes all rows from that table every so often?)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1421544654, https://github.com/simonw/sqlite-utils/pull/499#issuecomment-1292401308,https://api.github.com/repos/simonw/sqlite-utils/issues/499,1292401308,IC_kwDOCGYnMM5NCHqc,7908073,2022-10-26T17:54:26Z,2022-10-26T17:54:51Z,CONTRIBUTOR,"The problem with how it is currently is that the transformed fts table _will_ return incorrect results (unless the table was only 1 row or something), even if create_triggers was enabled previously. Maybe the simplest solution is to disable fts on a transformed table rather than try to recreate it? Thoughts?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1405196044, https://github.com/simonw/datasette/issues/1851#issuecomment-1291228502,https://api.github.com/repos/simonw/datasette/issues/1851,1291228502,IC_kwDOBm6k_c5M9pVW,25778,2022-10-25T23:02:10Z,2022-10-25T23:02:10Z,CONTRIBUTOR,That's reasonable. Canned queries and custom endpoints are certainly going to give more room for specific needs. ,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1421544654, https://github.com/simonw/datasette/issues/1851#issuecomment-1290615599,https://api.github.com/repos/simonw/datasette/issues/1851,1290615599,IC_kwDOBm6k_c5M7Tsv,25778,2022-10-25T14:05:12Z,2022-10-25T14:05:12Z,CONTRIBUTOR,"This could use a new plugin hook, too. I don't want to complicate your life too much, but for things like GIS, I'd want a way to turn regular JSON into SpatiaLite geometries or combine X/Y coordinates into point geometries and such. Happy to help however I can.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1421544654, https://github.com/simonw/sqlite-utils/pull/498#issuecomment-1274153135,https://api.github.com/repos/simonw/sqlite-utils/issues/498,1274153135,IC_kwDOCGYnMM5L8giv,7908073,2022-10-11T06:34:31Z,2022-10-11T06:34:31Z,CONTRIBUTOR,nevermind it was because I was running `db[table].transform`. The fts tables would still be there but the triggers would be dropped,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1404013495, https://github.com/simonw/datasette/issues/1836#issuecomment-1272357976,https://api.github.com/repos/simonw/datasette/issues/1836,1272357976,IC_kwDOBm6k_c5L1qRY,536941,2022-10-08T16:56:51Z,2022-10-08T16:56:51Z,CONTRIBUTOR,"when you are running from docker, you **always** will want to run as `mode=ro` because the same thing that is causing duplication in the inspect layer will cause duplication in the final container read/write layer when `datasette serve` runs.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1271103097,https://api.github.com/repos/simonw/datasette/issues/1836,1271103097,IC_kwDOBm6k_c5Lw355,536941,2022-10-07T04:43:41Z,2022-10-07T04:43:41Z,CONTRIBUTOR,"@simonw, should i open up a new issue for investigating the differences between ""immutable=1"" and ""mode=ro"" and possibly switching to ""mode=ro"". Or would you like to keep that conversation in this issue?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1480#issuecomment-1271101072,https://api.github.com/repos/simonw/datasette/issues/1480,1271101072,IC_kwDOBm6k_c5Lw3aQ,536941,2022-10-07T04:39:10Z,2022-10-07T04:39:10Z,CONTRIBUTOR,switching from `immutable=1` to `mode=ro` completely addressed this. see https://github.com/simonw/datasette/issues/1836#issuecomment-1271100651 for details.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1015646369, https://github.com/simonw/datasette/issues/1836#issuecomment-1271100651,https://api.github.com/repos/simonw/datasette/issues/1836,1271100651,IC_kwDOBm6k_c5Lw3Tr,536941,2022-10-07T04:38:14Z,2022-10-07T04:38:14Z,CONTRIBUTOR,"> yes, and i also think that this is causing the apparent memory problems in #1480. when the container starts up, it will make some operation on the database in `immutable` mode which apparently makes some small change to the db file. if that's so, then the db files will be copied to the read/write layer which counts against cloudrun's memory allocation! > > running a test of that now. this completely addressed #1480 ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1301#issuecomment-1271035998,https://api.github.com/repos/simonw/datasette/issues/1301,1271035998,IC_kwDOBm6k_c5Lwnhe,536941,2022-10-07T02:38:04Z,2022-10-07T02:38:04Z,CONTRIBUTOR,the only mode that `publish cloudrun` supports right now is immutable,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",860722711, https://github.com/simonw/datasette/issues/1836#issuecomment-1271020193,https://api.github.com/repos/simonw/datasette/issues/1836,1271020193,IC_kwDOBm6k_c5Lwjqh,536941,2022-10-07T02:15:05Z,2022-10-07T02:21:08Z,CONTRIBUTOR,"when i hack the connect method to open non mutable files with ""mode=ro"" and not ""immutable=1"" https://github.com/simonw/datasette/blob/eff112498ecc499323c26612d707908831446d25/datasette/database.py#L79 then: ```bash 870 B RUN /bin/sh -c datasette inspect nlrb.db --inspect-file inspect-data.json ``` the `datasette inspect` layer is only the size of the json file!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1271008997,https://api.github.com/repos/simonw/datasette/issues/1836,1271008997,IC_kwDOBm6k_c5Lwg7l,536941,2022-10-07T02:00:37Z,2022-10-07T02:00:49Z,CONTRIBUTOR,"yes, and i also think that this is causing the apparent memory problems in #1480. when the container starts up, it will make some operation on the database in `immutable` mode which apparently makes some small change to the db file. if that's so, then the db files will be copied to the read/write layer which counts against cloudrun's memory allocation! running a test of that now. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1271003212,https://api.github.com/repos/simonw/datasette/issues/1836,1271003212,IC_kwDOBm6k_c5LwfhM,536941,2022-10-07T01:52:04Z,2022-10-07T01:52:04Z,CONTRIBUTOR,"and if we try immutable mode, which is how things are opened by `datasette inspect` we duplicate the files!!! ```python # test_sql_immutable.py import sqlite3 import sys db_name = sys.argv[1] conn = sqlite3.connect(f'file:/app/{db_name}?immutable=1', uri=True) cur = conn.cursor() cur.execute('select count(*) from filing') print(cur.fetchone()) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1270992795,https://api.github.com/repos/simonw/datasette/issues/1836,1270992795,IC_kwDOBm6k_c5Lwc-b,536941,2022-10-07T01:29:15Z,2022-10-07T01:50:14Z,CONTRIBUTOR,"fascinatingly, telling python to open sqlite in read only mode makes this layer have a size of 0 ```python # test_sql_ro.py import sqlite3 import sys db_name = sys.argv[1] conn = sqlite3.connect(f'file:/app/{db_name}?mode=ro', uri=True) cur = conn.cursor() cur.execute('select count(*) from filing') print(cur.fetchone()) ``` that's quite weird because setting the file permissions to read only didn't do anything. (on reflection, that chmod isn't doing anything because the dockerfile commands are run as root)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1270988081,https://api.github.com/repos/simonw/datasette/issues/1836,1270988081,IC_kwDOBm6k_c5Lwb0x,536941,2022-10-07T01:19:01Z,2022-10-07T01:27:35Z,CONTRIBUTOR,"okay, some progress!! running some sql against a database file causes that file to get duplicated even if it doesn't apparently change the file. make a little test script like this: ```python # test_sql.py import sqlite3 import sys db_name = sys.argv[1] conn = sqlite3.connect(f'file:/app/{db_name}', uri=True) cur = conn.cursor() cur.execute('select count(*) from filing') print(cur.fetchone()) ``` then ```docker RUN python test_sql.py nlrb.db ``` produced a layer that's the same size as `nlrb.db`!! ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1270936982,https://api.github.com/repos/simonw/datasette/issues/1836,1270936982,IC_kwDOBm6k_c5LwPWW,536941,2022-10-07T00:52:41Z,2022-10-07T00:52:41Z,CONTRIBUTOR,"it's not that the inspect command is somehow changing the db files. if i set them to only read-only, the ""inspect"" layer still has the same very large size.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1836#issuecomment-1270923537,https://api.github.com/repos/simonw/datasette/issues/1836,1270923537,IC_kwDOBm6k_c5LwMER,536941,2022-10-07T00:46:08Z,2022-10-07T00:46:08Z,CONTRIBUTOR,"i thought it was maybe to do with reading through all the files, but that does not seem to be the case if i make a little test file like: ```python # test_read.py import hashlib import sys import pathlib HASH_BLOCK_SIZE = 1024 * 1024 def inspect_hash(path): """"""Calculate the hash of a database, efficiently."""""" m = hashlib.sha256() with path.open(""rb"") as fp: while True: data = fp.read(HASH_BLOCK_SIZE) if not data: break m.update(data) return m.hexdigest() inspect_hash(pathlib.Path(sys.argv[1])) ``` then a line in the Dockerfile like ```docker RUN python test_read.py nlrb.db && echo ""[]"" > /etc/inspect.json ``` just produes a layer of `3B` ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1400374908, https://github.com/simonw/datasette/issues/1480#issuecomment-1269847461,https://api.github.com/repos/simonw/datasette/issues/1480,1269847461,IC_kwDOBm6k_c5LsFWl,536941,2022-10-06T11:21:49Z,2022-10-06T11:21:49Z,CONTRIBUTOR,"thanks @simonw, i'll spend a little more time trying to figure out why this isn't working on cloudrun, and then will flip over to fly if i can't. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1015646369, https://github.com/simonw/datasette/issues/1480#issuecomment-1268629159,https://api.github.com/repos/simonw/datasette/issues/1480,1268629159,IC_kwDOBm6k_c5Lnb6n,536941,2022-10-05T16:00:55Z,2022-10-05T16:00:55Z,CONTRIBUTOR,"as a next step, i'll fetch the docker image from the google registry, and see what memory and disk usage looks like when i run it locally.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1015646369, https://github.com/simonw/datasette/issues/1480#issuecomment-1268613335,https://api.github.com/repos/simonw/datasette/issues/1480,1268613335,IC_kwDOBm6k_c5LnYDX,536941,2022-10-05T15:45:49Z,2022-10-05T15:45:49Z,CONTRIBUTOR,"running into this as i continue to grow my labor data warehouse. Here a CloudRun PM says the container size should **not** count against memory: https://stackoverflow.com/a/56570717","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1015646369, https://github.com/simonw/sqlite-utils/issues/409#issuecomment-1264223554,https://api.github.com/repos/simonw/sqlite-utils/issues/409,1264223554,IC_kwDOCGYnMM5LWoVC,7908073,2022-10-01T03:42:50Z,2022-10-01T03:42:50Z,CONTRIBUTOR,oh weird. it inserts into db2,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1149661489, https://github.com/simonw/sqlite-utils/issues/409#issuecomment-1264223363,https://api.github.com/repos/simonw/sqlite-utils/issues/409,1264223363,IC_kwDOCGYnMM5LWoSD,7908073,2022-10-01T03:41:45Z,2022-10-01T03:41:45Z,CONTRIBUTOR,"``` pytest xklb/check.py --pdb xklb/check.py:11: in test_transaction assert list(db2[""t""].rows) == [] E AssertionError: assert [{'foo': 1}] == [] E + where [{'foo': 1}] = list() E + where = .rows >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> PDB post_mortem (IO-capturing turned off) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > /home/xk/github/xk/lb/xklb/check.py(11)test_transaction() 9 with db1.conn: 10 db1[""t""].insert({""foo"": 1}) ---> 11 assert list(db2[""t""].rows) == [] 12 assert list(db2[""t""].rows) == [{""foo"": 1}] ``` It fails because it is already inserted. btw if you put these two lines in you pyproject.toml you can get `ipdb` in pytest ``` [tool.pytest.ini_options] addopts = ""--pdbcls=IPython.terminal.debugger:TerminalPdb --ignore=tests/data --capture=tee-sys --log-cli-level=ERROR"" ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1149661489, https://github.com/simonw/sqlite-utils/issues/493#issuecomment-1264219650,https://api.github.com/repos/simonw/sqlite-utils/issues/493,1264219650,IC_kwDOCGYnMM5LWnYC,7908073,2022-10-01T03:22:50Z,2022-10-01T03:23:58Z,CONTRIBUTOR,"this is likely what you are looking for: https://stackoverflow.com/a/51076749/697964 but yeah I would say just disable smart quotes","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1386562662, https://github.com/simonw/datasette/issues/370#issuecomment-1261930179,https://api.github.com/repos/simonw/datasette/issues/370,1261930179,IC_kwDOBm6k_c5LN4bD,72577720,2022-09-29T08:17:46Z,2022-09-29T08:17:46Z,CONTRIBUTOR,"Just watched this video which demonstrates the integration of *any* webapp into JupyterLab: https://youtu.be/FH1dKKmvFtc Maybe this is the answer?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",377155320, https://github.com/simonw/datasette/issues/1062#issuecomment-1260909128,https://api.github.com/repos/simonw/datasette/issues/1062,1260909128,IC_kwDOBm6k_c5LJ_JI,536941,2022-09-28T13:22:53Z,2022-09-28T14:09:54Z,CONTRIBUTOR,"if you went this route: ```python with sqlite_timelimit(conn, time_limit_ms): c.execute(query) for chunk in c.fetchmany(chunk_size): yield from chunk ``` then `time_limit_ms` would probably have to be greatly extended, because the time spent in the loop will depend on the downstream processing. i wonder if this was why you were thinking this feature would need a dedicated connection? --- reading more, there's no real limit i can find on the number of active cursors (or more precisely active prepared statements objects, because sqlite doesn't really have cursors). maybe something like this would be okay? ```python with sqlite_timelimit(conn, time_limit_ms): c.execute(query) # step through at least one to evaluate the statement, not sure if this is necessary yield c.execute.fetchone() for chunk in c.fetchmany(chunk_size): yield from chunk ``` this seems quite weird that there's not more of limit of the number of active prepared statements, but i haven't been able to find one. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",732674148, https://github.com/simonw/datasette/issues/1062#issuecomment-1260829829,https://api.github.com/repos/simonw/datasette/issues/1062,1260829829,IC_kwDOBm6k_c5LJryF,536941,2022-09-28T12:27:19Z,2022-09-28T12:27:19Z,CONTRIBUTOR,"for teaching `register_output_renderer` to stream it seems like the two options are to 1. a [nested query technique ](https://github.com/simonw/datasette/issues/526#issuecomment-505162238)to paginate through 2. a fetching model that looks like something ```python with sqlite_timelimit(conn, time_limit_ms): c.execute(query) for chunk in c.fetchmany(chunk_size): yield from chunk ``` currently `db.execute` is not a generator, so this would probably need a new method?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",732674148, https://github.com/simonw/datasette/issues/526#issuecomment-1259718517,https://api.github.com/repos/simonw/datasette/issues/526,1259718517,IC_kwDOBm6k_c5LFcd1,536941,2022-09-27T16:02:51Z,2022-09-27T16:04:46Z,CONTRIBUTOR,"i think that `max_returned_rows` **is** a defense mechanism, just not for connection exhaustion. `max_returned_rows` is a defense mechanism against **memory bombs**. if you are potentially yielding out hundreds of thousands or even millions of rows, you need to be quite careful about data flow to not run out of memory on the server, or on the client. you have a lot of places in your code that are protective of that right now, but `max_returned_rows` acts as the final backstop. so, given that, it makes sense to have removing `max_returned_rows` altogether be a non-goal, but instead allow for for specific codepaths (like streaming csv's) be able to bypass. that could dramatically lower the surface area for a memory-bomb attack.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/526#issuecomment-1258910228,https://api.github.com/repos/simonw/datasette/issues/526,1258910228,IC_kwDOBm6k_c5LCXIU,536941,2022-09-27T03:11:07Z,2022-09-27T03:11:07Z,CONTRIBUTOR,"i think this feature would be safe, as its really only the time limit that can, and imo, should protect against long running queries, as it is pretty easy to make very expensive queries that don't return many rows. moving away from `max_returned_rows` will requires some thinking about: 1. memory usage and data flows to handle potentially very large result sets 2. how to avoid rendering tens or hundreds of thousands of [html rows](#1655).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/526#issuecomment-1258878311,https://api.github.com/repos/simonw/datasette/issues/526,1258878311,IC_kwDOBm6k_c5LCPVn,536941,2022-09-27T02:19:48Z,2022-09-27T02:19:48Z,CONTRIBUTOR,"this sql query doesn't trip up `maximum_returned_rows` but does timeout ```sql with recursive counter(x) as ( select 0 union select x + 1 from counter ) select * from counter LIMIT 10 OFFSET 100000000 ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/526#issuecomment-1258871525,https://api.github.com/repos/simonw/datasette/issues/526,1258871525,IC_kwDOBm6k_c5LCNrl,536941,2022-09-27T02:09:32Z,2022-09-27T02:14:53Z,CONTRIBUTOR,"thanks @simonw, i learned something i didn't know about sqlite's execution model! > Imagine if Datasette CSVs did allow unlimited retrievals. Someone could hit the CSV endpoint for that recursive query and tie up Datasette's SQL connection effectively forever. why wouldn't the `sqlite_timelimit` guard prevent that? --- on my local version which has the code to [turn off truncations for query csv](#1820), `sqlite_timelimit` does protect me. ![Screenshot 2022-09-26 at 22-14-31 Error 500](https://user-images.githubusercontent.com/536941/192415680-94b32b7f-868f-4b89-8194-5752d45f6009.png) ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/526#issuecomment-1258849766,https://api.github.com/repos/simonw/datasette/issues/526,1258849766,IC_kwDOBm6k_c5LCIXm,536941,2022-09-27T01:27:03Z,2022-09-27T01:27:03Z,CONTRIBUTOR,"i agree with that concern! but if i'm understanding the code correctly, `maximum_returned_rows` does not protect against long-running queries in any way.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/pull/1820#issuecomment-1258803261,https://api.github.com/repos/simonw/datasette/issues/1820,1258803261,IC_kwDOBm6k_c5LB9A9,536941,2022-09-27T00:03:09Z,2022-09-27T00:03:09Z,CONTRIBUTOR,"the pattern in this PR `max_returned_rows` control the maximum rows rendered through html and json, and the csv render bypasses that. i think it would be better to have each of these different query renderers have more direct control for how many rows to fetch, instead of relying on the internals of the `execute` method. generally, users will not want to paginate through tens of thousands of results, but often will want to download a full query as json or as csv. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1386456717, https://github.com/simonw/sqlite-utils/issues/491#issuecomment-1258712931,https://api.github.com/repos/simonw/sqlite-utils/issues/491,1258712931,IC_kwDOCGYnMM5LBm9j,25778,2022-09-26T22:31:58Z,2022-09-26T22:31:58Z,CONTRIBUTOR,"Right. The backup command will copy tables completely, but in the case of conflicting table names, the destination gets overwritten silently. That might not be what you want here. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1383646615, https://github.com/simonw/sqlite-utils/issues/491#issuecomment-1258508215,https://api.github.com/repos/simonw/sqlite-utils/issues/491,1258508215,IC_kwDOCGYnMM5LA0-3,25778,2022-09-26T19:22:14Z,2022-09-26T19:22:14Z,CONTRIBUTOR,"This might be fairly straightforward using SQLite's backup utility: https://docs.python.org/3/library/sqlite3.html#sqlite3.Connection.backup ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1383646615, https://github.com/simonw/datasette/issues/526#issuecomment-1258337011,https://api.github.com/repos/simonw/datasette/issues/526,1258337011,IC_kwDOBm6k_c5LALLz,536941,2022-09-26T16:49:48Z,2022-09-26T16:49:48Z,CONTRIBUTOR,"i think the smallest change that gets close to what i want is to change the behavior so that `max_returned_rows` is not applied in the `execute` method when we are are asking for a csv of query. there are some infelicities for that approach, but i'll make a PR to make it easier to discuss.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/526#issuecomment-1258167564,https://api.github.com/repos/simonw/datasette/issues/526,1258167564,IC_kwDOBm6k_c5K_h0M,536941,2022-09-26T14:57:44Z,2022-09-26T15:08:36Z,CONTRIBUTOR,"reading the database execute method i have a few questions. https://github.com/simonw/datasette/blob/cb1e093fd361b758120aefc1a444df02462389a3/datasette/database.py#L229-L242 --- unless i'm missing something (which is very likely!!), the `max_returned_rows` argument doesn't actually offer any protections against running very expensive queries. It's not like adding a `LIMIT max_rows` argument. it make sense that it isn't because, the query could already have an `LIMIT` argument. Doing something like `select * from (query) limit {max_returned_rows}` **might** be protective but wouldn't always. Instead the code executes the full original query, and if still has time it fetches out the first `max_rows + 1` rows. this *does* offer some protection of memory exhaustion, as you won't hydrate a huge result set into python (however, there are [data flow patterns](https://github.com/simonw/datasette/issues/1727#issuecomment-1258129113) that could avoid that too) given the current architecture, i don't see how creating a new connection would be use? --- If we just removed the `max_return_rows` limitation, then i think most things would be fine **except** for the QueryViews. Right now rendering, just [5000 rows takes a lot of client-side memory](https://github.com/simonw/datasette/issues/1655) so some form of pagination would be required. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/datasette/issues/1655#issuecomment-1258166572,https://api.github.com/repos/simonw/datasette/issues/1655,1258166572,IC_kwDOBm6k_c5K_hks,536941,2022-09-26T14:57:04Z,2022-09-26T14:57:04Z,CONTRIBUTOR,"I think that paginating, even in javascript, could be very helpful. Maybe render json or csv into the page and let javascript loading that into the dom?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1163369515, https://github.com/simonw/datasette/issues/1727#issuecomment-1258129113,https://api.github.com/repos/simonw/datasette/issues/1727,1258129113,IC_kwDOBm6k_c5K_YbZ,536941,2022-09-26T14:30:11Z,2022-09-26T14:48:31Z,CONTRIBUTOR,"from your analysis, it seems like the GIL is blocking on loading of the data from sqlite to python, (particularly in the `fetchmany` call) this is probably a simplistic idea, but what if you had the python code in the `execute` method iterate over the cursor and yield out rows or small chunks of rows. something like: ```python with sqlite_timelimit(conn, time_limit_ms): try: cursor = conn.cursor() cursor.execute(sql, params if params is not None else {}) except: ... max_returned_rows = self.ds.max_returned_rows if max_returned_rows == page_size: max_returned_rows += 1 if max_returned_rows and truncate: for i, row in enumerate(cursor): yield row if i == max_returned_rows - 1: break else: for row in cursor: yield row truncated = False ``` this kind of thing works well with a postgres server side cursor, but i'm not sure if it will hold for sqlite. you would still spend about the same amount of time in python and would be contending for the gil, but it would be could be non blocking. depending on the data flow, this could also some benefit for memory. (data stays in more compact sqlite-land until you need it)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1217759117, https://github.com/simonw/sqlite-utils/issues/491#issuecomment-1256858763,https://api.github.com/repos/simonw/sqlite-utils/issues/491,1256858763,IC_kwDOCGYnMM5K6iSL,7908073,2022-09-24T04:50:59Z,2022-09-24T04:52:08Z,CONTRIBUTOR,"Instead of outputting binary data to stdout the interface might be better like this ``` sqlite-utils merge animals.db cats.db dogs.db ``` similar to `zip`, `ogr2ogr`, etc Actually I think this might already be possible within `ogr2ogr`. I don't believe spatial data is a requirement though it might add an `ogc_id` column or something ``` cp cats.db animals.db ogr2ogr -append animals.db dogs.db ogr2ogr -append animals.db another.db ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1383646615, https://github.com/simonw/datasette/issues/1817#issuecomment-1256781274,https://api.github.com/repos/simonw/datasette/issues/1817,1256781274,IC_kwDOBm6k_c5K6PXa,50527,2022-09-23T22:59:46Z,2022-09-23T22:59:46Z,CONTRIBUTOR,"While you are adding features, would you be future-proofing your APIs if you switched over some arguments over to keyword-only arguments or would that be too disruptive? Thinking out loud: ``` async def render_template( self, templates, *, context=None, plugin_context=None, request=None, view_name=None ): ``` ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1384273985, https://github.com/simonw/datasette/issues/526#issuecomment-1254064260,https://api.github.com/repos/simonw/datasette/issues/526,1254064260,IC_kwDOBm6k_c5Kv4CE,536941,2022-09-21T18:17:04Z,2022-09-21T18:18:01Z,CONTRIBUTOR,"hi @simonw, this is becoming more of a bother for my [labor data warehouse](https://labordata.bunkum.us/). Is there any research or a spike i could do that would help you investigate this issue?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",459882902, https://github.com/simonw/sqlite-utils/issues/433#issuecomment-1252898131,https://api.github.com/repos/simonw/sqlite-utils/issues/433,1252898131,IC_kwDOCGYnMM5KrbVT,7908073,2022-09-20T20:51:21Z,2022-09-20T20:56:07Z,CONTRIBUTOR,"When I run `reset` it fixes my terminal. I suspect it is related to the progress bar https://linux.die.net/man/1/reset ``` 950 1s /m/d/03_Downloads πŸ‘ echo $TERM xterm-kitty β–“β–‘β–’β–‘ /m/d/03_Downloads 🌏 kitty -v kitty 0.26.2 created by Kovid Goyal $ sqlite-utils insert test.db facility facility-boundary-us-all.csv --csv blah blah blah (no offense) $ $ reset $ ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1239034903, https://github.com/simonw/datasette/issues/1813#issuecomment-1250901367,https://api.github.com/repos/simonw/datasette/issues/1813,1250901367,IC_kwDOBm6k_c5Kjz13,883348,2022-09-19T11:34:45Z,2022-09-19T11:34:45Z,CONTRIBUTOR,"oh and by writing this I just realized the difference: the URL on fly.io is with a custom SQL command whereas the local one is without. It seems that there is no pagination when using custom SQL commands which makes sense Sorry for this useless issue, maybe this can be useful for someone else / me in the future. Thanks again for this wonderful project !","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1377811868, https://github.com/simonw/datasette/issues/1810#issuecomment-1248204219,https://api.github.com/repos/simonw/datasette/issues/1810,1248204219,IC_kwDOBm6k_c5KZhW7,82988,2022-09-15T14:44:47Z,2022-09-15T14:46:26Z,CONTRIBUTOR,"A couple+ of possible use case examples: - someone has a collection of articles indexed with FTS; they want to publish a simple search tool over the results; - someone has an image collection and they want to be able to search over description text to return images; - someone has a set of locations with descriptions, and wants to run a query over places and descriptions and get results as a listing or on a map; - someone has a set of audio or video files with titles, descriptions and/or transcripts, and wants to be able to search over them and return playable versions of returned items. In many cases, I suspect the raw content will be in one table, but the search table will be a second (eg FTS) table. Generally, the search may be over one or more joined tables, and the results constructed from one or more tables (which may or may not be distinct from the search tables).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1374626873, https://github.com/simonw/datasette/pull/1685#issuecomment-1237381620,https://api.github.com/repos/simonw/datasette/issues/1685,1237381620,IC_kwDOBm6k_c5JwPH0,49699333,2022-09-05T18:36:47Z,2022-09-05T18:36:47Z,CONTRIBUTOR,"Looks like jinja2 is no longer updatable, so this is no longer needed.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1180778860, https://github.com/simonw/datasette/pull/1799#issuecomment-1237381569,https://api.github.com/repos/simonw/datasette/issues/1799,1237381569,IC_kwDOBm6k_c5JwPHB,49699333,2022-09-05T18:36:42Z,2022-09-05T18:36:42Z,CONTRIBUTOR,"Looks like aiofiles is no longer updatable, so this is no longer needed.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1362242558, https://github.com/simonw/sqlite-utils/pull/480#issuecomment-1232356302,https://api.github.com/repos/simonw/sqlite-utils/issues/480,1232356302,IC_kwDOCGYnMM5JdEPO,7908073,2022-08-31T01:51:49Z,2022-08-31T01:51:49Z,CONTRIBUTOR,Thanks for pointing me to the right place,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1355433619, https://github.com/simonw/sqlite-utils/issues/467#issuecomment-1224382336,https://api.github.com/repos/simonw/sqlite-utils/issues/467,1224382336,IC_kwDOCGYnMM5I-peA,50527,2022-08-23T17:16:13Z,2022-08-23T17:16:13Z,CONTRIBUTOR,"> Should passing `alter=True` also drop any columns that aren't included in the new table structure? > > It could even spot column types that aren't correct and fix those. > > Is that consistent with the expectations set by how `alter=True` works elsewhere? I would lean towards not dropping them (or making a `drop=True` or `drop_columns=True`or `drop_missing_columns=True`) to work with existing tables easier. I do like that sqlite-utils mostly just works with existing tables but it's also nice to add to existing fields in a few cases. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1348169997, https://github.com/simonw/datasette/pull/1789#issuecomment-1223347322,https://api.github.com/repos/simonw/datasette/issues/1789,1223347322,IC_kwDOBm6k_c5I6sx6,15178711,2022-08-23T00:03:20Z,2022-08-23T00:03:20Z,CONTRIBUTOR,"@simonw to build the extension on ubuntu, you can run: ``` apt-get update && apt-get install libsqlite3-dev gcc gcc ext.c -fPIC -shared -o ext.so ``` I'm not the best with Actions, but if you set the cache key to `ext.c`, run those two commands to download dependencies + compile to `ext.so`, then the unit test should pick it up and run it correctly. Let me know if you want me to update the PR with that added","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1344823170, https://github.com/simonw/datasette/pull/1789#issuecomment-1221576460,https://api.github.com/repos/simonw/datasette/issues/1789,1221576460,IC_kwDOBm6k_c5Iz8cM,15178711,2022-08-21T16:16:42Z,2022-08-21T16:16:42Z,CONTRIBUTOR,"Rebased, Read the docs failure should now now fixed Re docs - ya that's a pretty ambitious page, I'm still not 100% sure what the best practices are/should be... Would be happy to make that page in a future PR","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1344823170, https://github.com/simonw/datasette/issues/1779#issuecomment-1214437408,https://api.github.com/repos/simonw/datasette/issues/1779,1214437408,IC_kwDOBm6k_c5IYtgg,536941,2022-08-14T19:42:58Z,2022-08-14T19:42:58Z,CONTRIBUTOR,thanks @simonw!,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1334628400, https://github.com/simonw/datasette/issues/1779#issuecomment-1210675046,https://api.github.com/repos/simonw/datasette/issues/1779,1210675046,IC_kwDOBm6k_c5IKW9m,536941,2022-08-10T13:28:37Z,2022-08-10T13:28:37Z,CONTRIBUTOR,maybe a simpler solution is to set the maxscale to like 2? since datasette is not set up to make use of container scaling anyway?,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1334628400, https://github.com/simonw/datasette/issues/1191#issuecomment-1200732975,https://api.github.com/repos/simonw/datasette/issues/1191,1200732975,IC_kwDOBm6k_c5Hkbsv,2670795,2022-08-01T05:39:27Z,2022-08-01T05:39:27Z,CONTRIBUTOR,I've got a URL shortening plugin that I would like to embed on the query page but I'd like avoid capturing the entire `query.html` template. A feature like this would solve it. Where's this at and how can I help?,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",787098345, https://github.com/simonw/sqlite-utils/issues/456#issuecomment-1190277829,https://api.github.com/repos/simonw/sqlite-utils/issues/456,1190277829,IC_kwDOCGYnMM5G8jLF,536941,2022-07-20T13:19:15Z,2022-07-20T13:19:15Z,CONTRIBUTOR,hadley wickham's melt and reshape could be good inspo: http://had.co.nz/reshape/introduction.pdf,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1310243385, https://github.com/simonw/sqlite-utils/issues/456#issuecomment-1190272780,https://api.github.com/repos/simonw/sqlite-utils/issues/456,1190272780,IC_kwDOCGYnMM5G8h8M,536941,2022-07-20T13:14:54Z,2022-07-20T13:14:54Z,CONTRIBUTOR,"for example, i have data on votes that look like this: | ballot_id | option_id | choice | |-|-|-| | 1 | 1 | 0 | | 1 | 2 | 1 | | 1 | 3 | 0 | | 1 | 4 | 1 | | 2 | 1 | 1 | | 2 | 2 | 0 | | 2 | 3 | 1 | | 2 | 4 | 0 | and i want to reshape from this long form to this wide form: | ballot_id | option_id_1 | option_id_2 | option_id_3 | option_id_ 4| |-|-|-|-| -| | 1 | 0 | 1 | 0 | 1 | | 2 | 1 | 0 | 1| 0 | i could do such a think like this. ```sql select ballot_id, sum(choice) filter (where option_id = 1) as option_id_1, sum(choice) filter (where option_id = 2) as option_id_2, sum(choice) filter (where option_id = 3) as option_id_3, sum(choice) filter (where option_id = 4) as option_id_4 from vote group by ballot_id ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1310243385, https://github.com/simonw/sqlite-utils/issues/423#issuecomment-1189010812,https://api.github.com/repos/simonw/sqlite-utils/issues/423,1189010812,IC_kwDOCGYnMM5G3t18,536941,2022-07-19T12:47:39Z,2022-07-19T12:47:39Z,CONTRIBUTOR,just ran into this!,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1199158210, https://github.com/simonw/sqlite-utils/issues/449#issuecomment-1179579878,https://api.github.com/repos/simonw/sqlite-utils/issues/449,1179579878,IC_kwDOCGYnMM5GTvXm,1690072,2022-07-09T17:41:32Z,2022-07-09T17:41:50Z,CONTRIBUTOR,Learnt that the types in Sqlite-utils differ somewhat from those in Sqlite. I've changed my test to account for this difference and the test has passed successfully. I will submit a PR.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1279863844, https://github.com/simonw/sqlite-utils/issues/449#issuecomment-1174027079,https://api.github.com/repos/simonw/sqlite-utils/issues/449,1174027079,IC_kwDOCGYnMM5F-jtH,1690072,2022-07-04T17:33:04Z,2022-07-04T17:48:43Z,CONTRIBUTOR,"I've written the code and test. Would you be able to advise how to compare table columns in a pytest function properly? Experiencing a challenge when comparing columns. Test: ```python def test_duplicate(fresh_db): table = fresh_db.create_table( ""table1"", { ""text_col"": str, ""float_col"": float, ""int_col"": int, ""bool_col"": bool, ""bytes_col"": bytes, ""datetime_col"": datetime.datetime, }, ) dt = datetime.datetime.now() b = bytes('hello world', 'utf-8') data = {""text_col"": ""Cleo"", ""float_col"": 3.14, ""int_col"": -2, ""bool_col"": True, ""bytes_col"": b, ""datetime_col"": str(dt)} table1 = fresh_db[""table1""] row_id = table1.insert(data).last_rowid table1.duplicate('table2') table2 = fresh_db[""table2""] assert data == table2.get(row_id) assert table1.columns == table2.columns # FAILS HERE ``` Result: ![Screenshot 2022-07-05 at 1 31 55 AM](https://user-images.githubusercontent.com/1690072/177198814-daac48c9-5746-49d0-a14a-14fe181c5a2f.png) Failure is due to column types being named differently -- e.g. 'FLOAT' vs 'REAL', 'INTEGER' vs 'INT'. How should I go about comparing columns while accounting for equivalent types? Or did I miss out something in my duplication code correctly? Here's how I did it: in `db.py`, I've added the following code: ```python class Table(Queryable): [...] def duplicate( self, name_new: str ) -> ""Table"": """""" Duplicate this table in this database. :param name_new: Name of new table. """""" assert self.exists() with self.db.conn: sql = ""CREATE TABLE [{new_table}] AS SELECT * FROM [{table}];"".format( new_table = name_new, table = self.name, ) self.db.execute(sql) return self.db[name_new] ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1279863844, https://github.com/simonw/datasette/issues/1713#issuecomment-1173358747,https://api.github.com/repos/simonw/datasette/issues/1713,1173358747,IC_kwDOBm6k_c5F8Aib,2670795,2022-07-04T05:16:35Z,2022-07-04T05:16:35Z,CONTRIBUTOR,"This feature is pretty important and would be nice if it would be all within Datasette (no separate CLI/deploy required). My workflow now is to basically just copy the result and paste into a Google Sheet, which works, but then it's not discoverable to other journalists browsing the Datasette instance. I started building a plugin similar to [datasette-saved-queries](https://datasette.io/plugins/datasette-saved-queries) but one that maintains its own DB (required if you're working with all immutable DBs), but got bogged down in details.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1203943272, https://github.com/simonw/datasette/pull/1693#issuecomment-1168704157,https://api.github.com/repos/simonw/datasette/issues/1693,1168704157,IC_kwDOBm6k_c5FqQKd,49699333,2022-06-28T13:11:36Z,2022-06-28T13:11:36Z,CONTRIBUTOR,Superseded by #1763.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1184850337, https://github.com/simonw/datasette/pull/1753#issuecomment-1163091750,https://api.github.com/repos/simonw/datasette/issues/1753,1163091750,IC_kwDOBm6k_c5FU18m,49699333,2022-06-22T13:22:34Z,2022-06-22T13:22:34Z,CONTRIBUTOR,Superseded by #1760.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1261826957, https://github.com/simonw/datasette/issues/1528#issuecomment-1151887842,https://api.github.com/repos/simonw/datasette/issues/1528,1151887842,IC_kwDOBm6k_c5EqGni,25778,2022-06-10T03:23:08Z,2022-06-10T03:23:08Z,CONTRIBUTOR,I just put together a version of this in a plugin: https://github.com/eyeseast/datasette-query-files. Happy to have any feedback.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1060631257, https://github.com/simonw/datasette/issues/1742#issuecomment-1128064864,https://api.github.com/repos/simonw/datasette/issues/1742,1128064864,IC_kwDOBm6k_c5DPOdg,25778,2022-05-16T19:42:13Z,2022-05-16T19:42:13Z,CONTRIBUTOR,"Just to add a wrinkle here, this loads fine: https://alltheplaces-datasette.fly.dev/alltheplaces/places.geojson?_trace=1 But also, this doesn't add any trace data: https://alltheplaces-datasette.fly.dev/alltheplaces/places.json?_trace=1 What am I missing?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1237586379, https://github.com/simonw/datasette/issues/1742#issuecomment-1128049716,https://api.github.com/repos/simonw/datasette/issues/1742,1128049716,IC_kwDOBm6k_c5DPKw0,25778,2022-05-16T19:24:44Z,2022-05-16T19:24:44Z,CONTRIBUTOR,"Where is `_trace` getting injected? And is it something a plugin should be able to handle? (If it is, I guess I should handle it in this case.)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1237586379, https://github.com/simonw/datasette/issues/741#issuecomment-1125342229,https://api.github.com/repos/simonw/datasette/issues/741,1125342229,IC_kwDOBm6k_c5DE1wV,25778,2022-05-12T19:21:16Z,2022-05-12T19:21:16Z,CONTRIBUTOR,"Came here to check if this had been flagged already. Was helping a colleague get something on Cloud Run and had to dig to find `--extra-options=""--setting sql_time_limit_ms 2500""`. If I get some time next week, maybe I'll try to tackle it. Would definitely make things easier to be able to do something like this: ```sh datasette publish cloudrun something.db --setting sql_time_limit_ms 2500 ``` ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",607223136, https://github.com/simonw/datasette/issues/1728#issuecomment-1111752676,https://api.github.com/repos/simonw/datasette/issues/1728,1111752676,IC_kwDOBm6k_c5CQ__k,127565,2022-04-28T05:11:54Z,2022-04-28T05:11:54Z,CONTRIBUTOR,"And in terms of the bug, yep I agree that option 2 would be the most useful and least frustrating.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1218133366, https://github.com/simonw/datasette/issues/1728#issuecomment-1111751734,https://api.github.com/repos/simonw/datasette/issues/1728,1111751734,IC_kwDOBm6k_c5CQ_w2,127565,2022-04-28T05:09:59Z,2022-04-28T05:09:59Z,CONTRIBUTOR,"Thanks, I'll give it a try!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1218133366, https://github.com/simonw/datasette/issues/1728#issuecomment-1111712953,https://api.github.com/repos/simonw/datasette/issues/1728,1111712953,IC_kwDOBm6k_c5CQ2S5,127565,2022-04-28T03:48:36Z,2022-04-28T03:48:36Z,CONTRIBUTOR,"I don't think that'd work for this project. The db is very big, and my aim was to have an environment where researchers could be making use of the data, but be easily able to add corrections to the HTR/OCR extracted data when they came across problems. It's in its immutable (!) form here: https://sydney-stock-exchange-xqtkxtd5za-ts.a.run.app/stock_exchange/stocks","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1218133366, https://github.com/simonw/datasette/issues/1728#issuecomment-1111705323,https://api.github.com/repos/simonw/datasette/issues/1728,1111705323,IC_kwDOBm6k_c5CQ0br,127565,2022-04-28T03:32:06Z,2022-04-28T03:32:06Z,CONTRIBUTOR,"Ah, that would be it! I have a core set of data which doesn't change to which I want authorised users to be able to submit corrections. I was going to deal with the persistence issue by just grabbing the user corrections at regular intervals and saving to GitHub. I might need to rethink. Thanks!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1218133366, https://github.com/simonw/datasette/issues/1101#issuecomment-1105642187,https://api.github.com/repos/simonw/datasette/issues/1101,1105642187,IC_kwDOBm6k_c5B5sLL,25778,2022-04-21T18:59:08Z,2022-04-21T18:59:08Z,CONTRIBUTOR,"Ha! That was your idea (and a good one). But it's probably worth measuring to see what overhead it adds. It did require both passing in the database and making the whole thing `async`. Just timing the queries themselves: 1. [Using `AsGeoJSON(geometry) as geometry`](https://alltheplaces-datasette.fly.dev/alltheplaces?sql=select%0D%0A++id%2C%0D%0A++properties%2C%0D%0A++AsGeoJSON%28geometry%29+as+geometry%2C%0D%0A++spider%0D%0Afrom%0D%0A++places%0D%0Aorder+by%0D%0A++id%0D%0Alimit%0D%0A++1000) takes 10.235 ms 2. [Leaving as binary](https://alltheplaces-datasette.fly.dev/alltheplaces?sql=select%0D%0A++id%2C%0D%0A++properties%2C%0D%0A++geometry%2C%0D%0A++spider%0D%0Afrom%0D%0A++places%0D%0Aorder+by%0D%0A++id%0D%0Alimit%0D%0A++1000) takes 8.63 ms Looking at the network panel: 1. Takes about 200 ms for the `fetch` request 2. Takes about 300 ms I'm not sure how best to time the GeoJSON generation, but it would be interesting to check. Maybe I'll write a plugin to add query times to response headers. The other thing to consider with async streaming is that it might be well-suited for a slower response. When I have to get the whole result and send a response in a fixed amount of time, I need the most efficient query possible. If I can hang onto a connection and get things one chunk at a time, maybe it's ok if there's some overhead. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",749283032, https://github.com/simonw/datasette/issues/1101#issuecomment-1105588651,https://api.github.com/repos/simonw/datasette/issues/1101,1105588651,IC_kwDOBm6k_c5B5fGr,25778,2022-04-21T18:15:39Z,2022-04-21T18:15:39Z,CONTRIBUTOR,"What if you split rendering and streaming into two things: - `render` is a function that returns a response - `stream` is a function that sends chunks, or yields chunks passed to an ASGI `send` callback That way current plugins still work, and streaming is purely additive. A `stream` function could get a cursor or iterator of rows, instead of a list, so it could more efficiently handle large queries. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",749283032, https://github.com/simonw/datasette/issues/1713#issuecomment-1103312860,https://api.github.com/repos/simonw/datasette/issues/1713,1103312860,IC_kwDOBm6k_c5Bwzfc,536941,2022-04-20T00:52:19Z,2022-04-20T00:52:19Z,CONTRIBUTOR,feels related to #1402 ,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1203943272, https://github.com/simonw/datasette/issues/1713#issuecomment-1099540225,https://api.github.com/repos/simonw/datasette/issues/1713,1099540225,IC_kwDOBm6k_c5BiacB,25778,2022-04-14T19:09:57Z,2022-04-14T19:09:57Z,CONTRIBUTOR,"I wonder if this overlaps with what I outlined in #1605. You could run something like this: ```sh datasette freeze -d exports/ aws s3 cp exports/ s3://my-export-bucket/$(date) ``` And maybe that does what you need. Of course, that plugin isn't built yet. But that's the idea.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1203943272, https://github.com/simonw/datasette/issues/1699#issuecomment-1094453751,https://api.github.com/repos/simonw/datasette/issues/1699,1094453751,IC_kwDOBm6k_c5BPAn3,25778,2022-04-11T01:32:12Z,2022-04-11T01:32:12Z,CONTRIBUTOR,"Was looking through old issues and realized a bunch of this got discussed in #1101 (including by me!), so sorry to rehash all this. Happy to help with whatever piece of it I can. Would be very excited to be able to use format plugins with exports.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1193090967, https://github.com/simonw/datasette/issues/1699#issuecomment-1092386254,https://api.github.com/repos/simonw/datasette/issues/1699,1092386254,IC_kwDOBm6k_c5BHH3O,25778,2022-04-08T02:39:25Z,2022-04-08T02:39:25Z,CONTRIBUTOR,"And just to think this through a little more, here's what `stream_geojson` might look like: ```python async def stream_geojson(datasette, columns, rows, database, stream): db = datasette.get_database(database) for row in rows: feature = await row_to_geojson(row, db) stream.write(feature + ""\n"") # just assuming newline mode for now ``` Alternately, that could be an async generator, like this: ```python async def stream_geojson(datasette, columns, rows, database): db = datasette.get_database(database) for row in rows: feature = await row_to_geojson(row, db) yield feature ``` Not sure which makes more sense, but I think this pattern would open up a lot of possibility. If you had your [stream_indented_json](https://til.simonwillison.net/python/output-json-array-streaming) function, you could do `yield from stream_indented_json(rows, 2)` and be one your way.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1193090967, https://github.com/simonw/datasette/issues/1699#issuecomment-1092370880,https://api.github.com/repos/simonw/datasette/issues/1699,1092370880,IC_kwDOBm6k_c5BHEHA,25778,2022-04-08T02:07:40Z,2022-04-08T02:07:40Z,CONTRIBUTOR,"So maybe `render_output_render` returns something like this: ```python @hookimpl def register_output_renderer(datasette): return { ""extension"": ""geojson"", ""render"": render_geojson, ""stream"": stream_geojson, ""can_render"": can_render_geojson, } ``` And stream gets an iterator, instead of a list of rows, so it can efficiently handle large queries. Maybe it also gets passed a destination stream, or it returns an iterator. I'm not sure what makes more sense. Either way, that might cover both CLI exports and streaming responses.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1193090967, https://github.com/simonw/datasette/issues/1699#issuecomment-1092357672,https://api.github.com/repos/simonw/datasette/issues/1699,1092357672,IC_kwDOBm6k_c5BHA4o,25778,2022-04-08T01:39:40Z,2022-04-08T01:39:40Z,CONTRIBUTOR,"> My best thought on how to differentiate them so far is plugins: if Datasette plugins that provide alternative outputs - like .geojson and .yml and suchlike - also work for the datasette query command that would make a lot of sense to me. That's my thinking, too. It's really the thing I've been wanting since writing `datasette-geojson`, since I'm always exporting with `datasette --get`. The workflow I'm always looking for is something like this: ```sh cd alltheplaces-datasette datasette query dunkin_in_suffolk -f geojson -o dunkin_in_suffolk.geojson ``` I think this probably needs either a new plugin hook separate from `register_output_renderer` or a way to use that without going through the HTTP stack. Or maybe a render mode that writes to a stream instead of a response. Maybe there's a new key in the dictionary that `register_output_renderer` returns that handles CLI exports.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1193090967, https://github.com/simonw/datasette/issues/1549#issuecomment-1087428593,https://api.github.com/repos/simonw/datasette/issues/1549,1087428593,IC_kwDOBm6k_c5A0Nfx,536941,2022-04-04T11:17:13Z,2022-04-04T11:17:13Z,CONTRIBUTOR,"another way to get the behavior of downloading the file is to use the download attribute of the anchor tag https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attr-download","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077620955,