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id ▼ | node_id | number | title | user | state | locked | assignee | milestone | comments | created_at | updated_at | closed_at | author_association | pull_request | body | repo | type | active_lock_reason | performed_via_github_app | reactions | draft | state_reason |
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1553425465 | I_kwDOCGYnMM5cl2Q5 | 522 | Add COLUMN_TYPE_MAPPING for timedelta | maport 81377 | open | 0 | 0 | 2023-01-23T16:49:54Z | 2023-01-23T16:49:54Z | NONE | Currently trying to create a column with Python type `datetime.timedelta` results in an error: ``` >>> from sqlite_utils import Database >>> db = Database("test.db") >>> test_tbl = db['test'] >>> test_tbl.insert({'col1': datetime.timedelta()}) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python3.10/dist-packages/sqlite_utils/db.py", line 2979, in insert return self.insert_all( File "/usr/local/lib/python3.10/dist-packages/sqlite_utils/db.py", line 3082, in insert_all self.create( File "/usr/local/lib/python3.10/dist-packages/sqlite_utils/db.py", line 1574, in create self.db.create_table( File "/usr/local/lib/python3.10/dist-packages/sqlite_utils/db.py", line 961, in create_table sql = self.create_table_sql( File "/usr/local/lib/python3.10/dist-packages/sqlite_utils/db.py", line 852, in create_table_sql column_type=COLUMN_TYPE_MAPPING[column_type], KeyError: <class 'datetime.timedelta'> ``` The reason this would be useful is that `MySQLdb` uses `timedelta` for MySQL `TIME` columns: ``` >>> import MySQLdb >>> conn = MySQLdb.connect(host='database', user='user', passwd='pw') >>> csr = conn.cursor() >>> csr.execute("SELECT CAST('11:20' AS TIME)") >>> tuple(csr) ((datetime.timedelta(seconds=40800),),) ``` So currently any attempt to convert a MySQL DB with a `TIME` column using `db-to-sqlite` will result in the above error. I was rather surprised that `MySQLdb` uses `timedelta` for `TIME` columns but I see that [this column type](https://dev.mysql.com/doc/refman/8.0/en/time.html) is intended for time intervals as well as the time of day so it makes sense. | sqlite-utils 140912432 | issue | {"url": "https://api.github.com/repos/simonw/sqlite-utils/issues/522/reactions", "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} |
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CREATE TABLE [issues] ( [id] INTEGER PRIMARY KEY, [node_id] TEXT, [number] INTEGER, [title] TEXT, [user] INTEGER REFERENCES [users]([id]), [state] TEXT, [locked] INTEGER, [assignee] INTEGER REFERENCES [users]([id]), [milestone] INTEGER REFERENCES [milestones]([id]), [comments] INTEGER, [created_at] TEXT, [updated_at] TEXT, [closed_at] TEXT, [author_association] TEXT, [pull_request] TEXT, [body] TEXT, [repo] INTEGER REFERENCES [repos]([id]), [type] TEXT , [active_lock_reason] TEXT, [performed_via_github_app] TEXT, [reactions] TEXT, [draft] INTEGER, [state_reason] TEXT); CREATE INDEX [idx_issues_repo] ON [issues] ([repo]); CREATE INDEX [idx_issues_milestone] ON [issues] ([milestone]); CREATE INDEX [idx_issues_assignee] ON [issues] ([assignee]); CREATE INDEX [idx_issues_user] ON [issues] ([user]);