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/sqlite-utils/pull/584#issuecomment-1683122490,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683122490,IC_kwDOCGYnMM5kUmk6,22429695,2023-08-17T23:45:44Z,2023-08-18T00:46:07Z,NONE,"## [Codecov](https://app.codecov.io/gh/simonw/sqlite-utils/pull/584?src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison) Report
Patch coverage: **`92.85%`** and project coverage change: **`-0.07%`** :warning:
> Comparison is base [(`1dc6b5a`)](https://app.codecov.io/gh/simonw/sqlite-utils/commit/1dc6b5aa644a92d3654f7068110ed7930989ce71?el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison) 95.82% compared to head [(`2915050`)](https://app.codecov.io/gh/simonw/sqlite-utils/pull/584?src=pr&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison) 95.76%.
> Report is 1 commits behind head on main.
Additional details and impacted files
```diff
@@ Coverage Diff @@
## main #584 +/- ##
==========================================
- Coverage 95.82% 95.76% -0.07%
==========================================
Files 8 8
Lines 2829 2834 +5
==========================================
+ Hits 2711 2714 +3
- Misses 118 120 +2
```
| [Files Changed](https://app.codecov.io/gh/simonw/sqlite-utils/pull/584?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison) | Coverage Δ | |
|---|---|---|
| [sqlite\_utils/db.py](https://app.codecov.io/gh/simonw/sqlite-utils/pull/584?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison#diff-c3FsaXRlX3V0aWxzL2RiLnB5) | `97.22% <92.85%> (-0.15%)` | :arrow_down: |
[:umbrella: View full report in Codecov by Sentry](https://app.codecov.io/gh/simonw/sqlite-utils/pull/584?src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Simon+Willison).
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","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683164661,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683164661,IC_kwDOCGYnMM5kUw31,9599,2023-08-18T00:45:53Z,2023-08-18T00:45:53Z,OWNER,"More updated documentation:
- https://sqlite-utils--584.org.readthedocs.build/en/584/reference.html#sqlite_utils.db.Table.transform
- https://sqlite-utils--584.org.readthedocs.build/en/584/python-api.html#python-api-transform-add-foreign-key-constraints","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683145819,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683145819,IC_kwDOCGYnMM5kUsRb,9599,2023-08-18T00:17:26Z,2023-08-18T00:17:26Z,OWNER,Updated documentation: https://sqlite-utils--584.org.readthedocs.build/en/584/python-api.html#adding-foreign-key-constraints,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683145110,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683145110,IC_kwDOCGYnMM5kUsGW,9599,2023-08-18T00:16:28Z,2023-08-18T00:16:48Z,OWNER,"One last piece of documentation: need to document the new option to `table.transform()` and `table.transform_sql()`:
https://github.com/simonw/sqlite-utils/blob/0771ac61fe5c2aca74075b20b1a99b9bd4c65661/sqlite_utils/db.py#L1706-L1708
I should write tests for them too.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683143723,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683143723,IC_kwDOCGYnMM5kUrwr,9599,2023-08-18T00:14:52Z,2023-08-18T00:14:52Z,OWNER,"Another docs update: this bit in here https://sqlite-utils.datasette.io/en/3.34/python-api.html#adding-multiple-foreign-key-constraints-at-once talks about how `.add_foreign_keys()` is a performance optimization to avoid having to run VACUUM a bunch of separate times:
> The final step in adding a new foreign key to a SQLite database is to run `VACUUM`, to ensure the new foreign key is available in future introspection queries.
>
> `VACUUM` against a large (multi-GB) database can take several minutes or longer. If you are adding multiple foreign keys using `table.add_foreign_key(...)` these can quickly add up.
>
> Instead, you can use `db.add_foreign_keys(...)` to add multiple foreign keys within a single transaction. This method takes a list of four-tuples, each one specifying a `table`, `column`, `other_table` and `other_column`.
That doesn't apply any more - the new mechanism using `.transform()` works completely differently, so this issue around running VACUUM no longer applies.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683139304,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683139304,IC_kwDOCGYnMM5kUqro,9599,2023-08-18T00:09:56Z,2023-08-18T00:09:56Z,OWNER,"Upgrading `flake8` locally replicated the error:
```
pip install -U flake8
flake8
```
```
./tests/test_recipes.py:99:9: F811 redefinition of unused 'fn' from line 96
./tests/test_recipes.py:127:9: F811 redefinition of unused 'fn' from line 124
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683138953,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683138953,IC_kwDOCGYnMM5kUqmJ,9599,2023-08-18T00:09:20Z,2023-08-18T00:09:20Z,OWNER,"Weird, I'm getting a `flake8` problem in CI which doesn't occur on my laptop:
```
./tests/test_recipes.py:99:9: F811 redefinition of unused 'fn' from line 96
./tests/test_recipes.py:127:9: F811 redefinition of unused 'fn' from line 124
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683137259,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683137259,IC_kwDOCGYnMM5kUqLr,9599,2023-08-18T00:06:59Z,2023-08-18T00:06:59Z,OWNER,"The docs still describe the old trick, I need to update that: https://sqlite-utils.datasette.io/en/3.34/python-api.html#adding-foreign-key-constraints","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683122767,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683122767,IC_kwDOCGYnMM5kUmpP,9599,2023-08-17T23:46:09Z,2023-08-17T23:46:09Z,OWNER,"Oops, `mypy` failures:
```
sqlite_utils/db.py:781: error: Incompatible types in assignment (expression has type ""Tuple[Any, ...]"", variable has type ""Union[str, ForeignKey, Tuple[str, str], Tuple[str, str, str], Tuple[str, str, str, str]]"") [assignment]
sqlite_utils/db.py:1164: error: Need type annotation for ""by_table"" (hint: ""by_table: Dict[, ] = ..."") [var-annotated]
sqlite_utils/db.py:1169: error: Item ""View"" of ""Union[Table, View]"" has no attribute ""transform"" [union-attr]
sqlite_utils/db.py:1813: error: Argument 1 to ""append"" of ""list"" has incompatible type ""ForeignKey""; expected [arg-type]
sqlite_utils/db.py:1824: error: Argument 1 to ""append"" of ""list"" has incompatible type ""ForeignKey""; expected [arg-type]
Found 5 errors in 1 file (checked 56 source files)
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683118376,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683118376,IC_kwDOCGYnMM5kUlko,9599,2023-08-17T23:41:10Z,2023-08-17T23:41:10Z,OWNER,"The problem here is that the table created by this line:
```python
fresh_db.create_table(""breeds"", {""name"": str})
```
Has this schema:
```sql
CREATE TABLE [breeds] (
[name] TEXT
);
```
SQLite creates an invisible `rowid` column for it automatically.
On the `main` branch with the old implementation that table ends up looking like this after the foreign key has been added:
```sql
(Pdb) print(fresh_db.schema)
CREATE TABLE [dogs] (
[name] TEXT
, [breed_id] INTEGER,
FOREIGN KEY([breed_id]) REFERENCES [breeds]([rowid])
);
CREATE TABLE [breeds] (
[name] TEXT
);
```
But I think this validation check is failing now: https://github.com/simonw/sqlite-utils/blob/842b61321fc6a9f0bdb913ab138e39d71bf42e00/sqlite_utils/db.py#L875-L884
Here's what the debugger reveals about this code:
```python
for fk in foreign_keys:
if fk.other_table == name and columns.get(fk.other_column):
continue
if not any(
c for c in self[fk.other_table].columns if c.name == fk.other_column
):
raise AlterError(
""No such column: {}.{}"".format(fk.other_table, fk.other_column)
)
```
```
(Pdb) fk
ForeignKey(table='dogs', column='breed_id', other_table='breeds', other_column='rowid')
(Pdb) self[fk.other_table].columns
[Column(cid=0, name='name', type='TEXT', notnull=0, default_value=None, is_pk=0)]
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683114719,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683114719,IC_kwDOCGYnMM5kUkrf,9599,2023-08-17T23:36:02Z,2023-08-17T23:36:02Z,OWNER,"Just these three lines recreate the problem:
```python
from sqlite_utils import Database
fresh_db = Database(memory=True)
fresh_db.create_table(""dogs"", {""name"": str})
fresh_db.create_table(""breeds"", {""name"": str})
fresh_db[""dogs""].add_column(""breed_id"", fk=""breeds"")
```
Traceback:
```
Traceback (most recent call last):
File """", line 1, in
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 2170, in add_column
self.add_foreign_key(col_name, fk, fk_col)
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 2273, in add_foreign_key
self.db.add_foreign_keys([(self.name, column, other_table, other_column)])
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 1169, in add_foreign_keys
self[table].transform(add_foreign_keys=fks)
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 1728, in transform
sqls = self.transform_sql(
^^^^^^^^^^^^^^^^^^^
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 1896, in transform_sql
self.db.create_table_sql(
File ""/Users/simon/Dropbox/Development/sqlite-utils/sqlite_utils/db.py"", line 882, in create_table_sql
raise AlterError(
sqlite_utils.db.AlterError: No such column: breeds.rowid
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683112857,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683112857,IC_kwDOCGYnMM5kUkOZ,9599,2023-08-17T23:33:58Z,2023-08-17T23:33:58Z,OWNER,"Full test:
https://github.com/simonw/sqlite-utils/blob/842b61321fc6a9f0bdb913ab138e39d71bf42e00/tests/test_create.py#L468-L484","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,
https://github.com/simonw/sqlite-utils/pull/584#issuecomment-1683112298,https://api.github.com/repos/simonw/sqlite-utils/issues/584,1683112298,IC_kwDOCGYnMM5kUkFq,9599,2023-08-17T23:33:14Z,2023-08-17T23:33:14Z,OWNER,"Just one failing test left:
```
# Soundness check foreign_keys point to existing tables
for fk in foreign_keys:
if fk.other_table == name and columns.get(fk.other_column):
continue
if not any(
c for c in self[fk.other_table].columns if c.name == fk.other_column
):
> raise AlterError(
""No such column: {}.{}"".format(fk.other_table, fk.other_column)
)
E sqlite_utils.db.AlterError: No such column: breeds.rowid
sqlite_utils/db.py:882: AlterError
==== short test summary info ====
FAILED tests/test_create.py::test_add_column_foreign_key - sqlite_utils.db.AlterError: No such column: breeds.rowid
==== 1 failed, 378 deselected in 0.49s ====
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1855838223,