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/190#issuecomment-377065541,https://api.github.com/repos/simonw/datasette/issues/190,377065541,MDEyOklzc3VlQ29tbWVudDM3NzA2NTU0MQ==,9599,2018-03-28T22:58:52Z,2018-03-28T22:58:52Z,OWNER,"This is because the SQL we are using here is:
select * from compound_primary_key where ""pk1"" > ""d"" and ""pk2"" > ""v"" order by pk1, pk2 limit 101
This is incorrect. The correct SQL syntax (according to the example on https://www.sqlite.org/rowvalue.html#scrolling_window_queries ) is:
select * from compound_primary_key where (""pk1"", ""pk2"") > (""d"", ""v"") order by pk1, pk2 limit 101
BUT... this uses ""row values"" syntax which was only added to SQLite in version 3.15.0 in October 2016: https://sqlite.org/changes.html#version_3_15_0
The version on https://datasette-issue-190-compound-pks.now.sh/compound-pks-9aafe8f?sql=select+sqlite_version%28%29%3B is 3.8.7.1 from October 2014.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377066466,https://api.github.com/repos/simonw/datasette/issues/190,377066466,MDEyOklzc3VlQ29tbWVudDM3NzA2NjQ2Ng==,9599,2018-03-28T23:03:45Z,2018-03-28T23:03:57Z,OWNER,"Without row values syntax, the necessary SQL to retrieve the next page after `d, v` gets a bit gnarly:
select * from compound_primary_key
where pk1 >= ""d"" and not (pk1 = ""d"" and pk2 <= ""v"")
order by pk1, pk2
See https://datasette-issue-190-compound-pks.now.sh/compound-pks-9aafe8f?sql=select+*+from+compound_primary_key+where+pk1+%3E%3D+%22d%22+and+not+%28pk1+%3D+%22d%22+and+pk2+%3C%3D+%22v%22%29+order+by+pk1%2C+pk2
This article was useful for figuring this out: https://use-the-index-luke.com/sql/partial-results/fetch-next-page","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377067541,https://api.github.com/repos/simonw/datasette/issues/190,377067541,MDEyOklzc3VlQ29tbWVudDM3NzA2NzU0MQ==,9599,2018-03-28T23:09:18Z,2018-03-28T23:09:51Z,OWNER,"Here's how I generated the table for testing this with 3 compound primary keys:
CREATE_SQL = '''
CREATE TABLE compound_three_primary_keys (
pk1 varchar(30),
pk2 varchar(30),
pk3 varchar(30),
content text,
PRIMARY KEY (pk1, pk2, pk3)
);'''
alphabet = 'abcdefghijklmnopqrstuvwxyz'
for a in alphabet:
for b in alphabet:
for c in alphabet:
print('''
INSERT INTO compound_three_primary_keys VALUES ('{}', '{}', '{}', '{}');
'''.strip().format(a, b, c, '{}-{}-{}-{}-{}-{}'.format(a,b,c,a,b,c)))
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377072022,https://api.github.com/repos/simonw/datasette/issues/190,377072022,MDEyOklzc3VlQ29tbWVudDM3NzA3MjAyMg==,9599,2018-03-28T23:32:24Z,2018-03-28T23:32:24Z,OWNER,"Here's the SQL for a next page with three compound primary keys:
https://datasette-issue-190-compound-pks.now.sh/compound-pks-8e99805?sql=select+*+from+compound_three_primary_keys%0D%0Awhere%0D%0A++%28pk1+%3E+%3Apk1%29%0D%0A++++or%0D%0A++%28pk1+%3D+%3Apk1+and+pk2+%3E+%3Apk2%29%0D%0A++++or%0D%0A++%28pk1+%3D+%3Apk1+and+pk2+%3D+%3Apk2+and+pk3+%3E+%3Apk3%29%0D%0Aorder+by+pk1%2C+pk2%2C+pk3%3B%0D%0A%0D%0A%0D%0A&pk1=a&pk2=d&pk3=v
```
select * from compound_three_primary_keys
where
(pk1 > :pk1)
or
(pk1 = :pk1 and pk2 > :pk2)
or
(pk1 = :pk1 and pk2 = :pk2 and pk3 > :pk3)
order by pk1, pk2, pk3;
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377454591,https://api.github.com/repos/simonw/datasette/issues/190,377454591,MDEyOklzc3VlQ29tbWVudDM3NzQ1NDU5MQ==,9599,2018-03-30T06:11:59Z,2018-03-30T06:11:59Z,OWNER,"Re-opening this issue: my fix doesn't play nicely with extra filter arguments.
Consider this page: https://datasette-issue-190-compound-pks-not-quite-fixed.now.sh/compound-pks-8e99805/compound_three_primary_keys?content__contains=d
The next link is to `?_next=f%2Cz%2Ct&content__contains=z` (that's next of `f,z,t`) but that gives us https://datasette-issue-190-compound-pks-not-quite-fixed.now.sh/compound-pks-8e99805/compound_three_primary_keys?_next=b%2Cx%2Cd&content__contains=d which shows `a,a,d` at the top.
Sure enough, the generated SQL looks like this: https://datasette-issue-190-compound-pks-not-quite-fixed.now.sh/compound-pks-8e99805?sql=select+%2A+from+compound_three_primary_keys+where+%22content%22+like+%3Ap0+and+%28%5Bpk1%5D+%3E+%3Ap0%29%0A++or%0A%28%5Bpk1%5D+%3D+%3Ap0+and+%5Bpk2%5D+%3E+%3Ap1%29%0A++or%0A%28%5Bpk1%5D+%3D+%3Ap0+and+%5Bpk2%5D+%3D+%3Ap1+and+%5Bpk3%5D+%3E+%3Ap2%29+order+by+pk1%2C+pk2%2C+pk3+limit+101&p0=%25d%25&p1=b&p2=x&p3=d
select * from compound_three_primary_keys where ""content"" like :p0 and ([pk1] > :p0)
or
([pk1] = :p0 and [pk2] > :p1)
or
([pk1] = :p0 and [pk2] = :p1 and [pk3] > :p2) order by pk1, pk2, pk3 limit 101
The parameters here are confused. The :p0 should be reserved just for the like clause - the other parameters should be p1, p2 and p3 (not p0, p1 and p2).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377457087,https://api.github.com/repos/simonw/datasette/issues/190,377457087,MDEyOklzc3VlQ29tbWVudDM3NzQ1NzA4Nw==,9599,2018-03-30T06:30:23Z,2018-03-30T06:30:23Z,OWNER,"Interestingly, in deploying a copy of the database to demonstrate this final bug fix I had to use the `--force` argument like so:
datasette publish now --branch=master compound-pks.db --force
This is because `now` had already deployed a Dockerfile referencing `--branch=master` once already, so it thought nothing had changed and it could re-use that last deployment.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,
https://github.com/simonw/datasette/issues/190#issuecomment-377457214,https://api.github.com/repos/simonw/datasette/issues/190,377457214,MDEyOklzc3VlQ29tbWVudDM3NzQ1NzIxNA==,9599,2018-03-30T06:31:15Z,2018-03-30T06:31:15Z,OWNER,"Fixed! https://datasette-issue-190-compound-pks-second-fix.now.sh/compound-pks-8e99805/compound_three_primary_keys?_next=b%2Cx%2Cd&content__contains=d now correctly shows `b,y,d` as the first row on the page.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",309558826,