issue_comments: 586676640
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| 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/issues/86#issuecomment-586676640 | https://api.github.com/repos/simonw/sqlite-utils/issues/86 | 586676640 | MDEyOklzc3VlQ29tbWVudDU4NjY3NjY0MA== | 9599 | 2020-02-16T07:16:31Z | 2020-02-16T07:16:31Z | OWNER | There's something weird about this. I created a test database file like so: ``` sqlite3 /tmp/demo.db <<EOF BEGIN TRANSACTION; CREATE TABLE "data" ( "MTU (CET)" TEXT, "Day-ahead Price [EUR/MWh]" TEXT ); INSERT INTO "data" VALUES('01.01.2016 00:00 - 01.01.2016 01:00','23.86'); COMMIT; EOF ``` Then confirmed that it works as expected in SQLite: ``` $ sqlite3 /tmp/demo.db SQLite version 3.24.0 2018-06-04 14:10:15 Enter ".help" for usage hints. sqlite> .schema CREATE TABLE IF NOT EXISTS "data" ( "MTU (CET)" TEXT, "Day-ahead Price [EUR/MWh]" TEXT ); sqlite> .headers on sqlite> select * from data; MTU (CET)|Day-ahead Price [EUR/MWh] 01.01.2016 00:00 - 01.01.2016 01:00|23.86 sqlite> ``` BUT... if I open the same database in Python, something weird happens: ``` In [1]: import sqlite3 In [2]: conn = sqlite3.connect("/tmp/demo.db") In [3]: cursor = conn.cursor() In [4]: cursor.execute("select * from data") Out[4]: <sqlite3.Cursor at 0x10c70a0a0> In [5]: cursor.fetchall() Out[5]: [('01.01.2016 00:00 - 01.01.2016 01:00', '23.86')] In [6]: cursor.description Out[6]: (('MTU (CET)', None, None, None, None, None, None), ('Day-ahead Price', None, None, None, None, None, None)) In [7]: conn.row_factory = sqlite3.Row In [8]: cursor = conn.cursor() In [9]: cursor.execute("select * from data") Out[9]: <sqlite3.Cursor at 0x10c7a8490> In [10]: row = cursor.fetchall() In [12]: row Out[12]: <sqlite3.Row at 0x10c3fe670> In [15]: row.keys() Out[15]: ['MTU (CET)', 'Day-ahead Price'] ``` Note that in `cursor.description` AND in `row.keys()` above the second column is displayed as `'Day-ahead Price'` - when we would expect it to be displayed as `Day-ahead Price [EUR/MWh]` So.... it looks like there may be a bug in Python's `sqlite3` module where columns with square braces in them have that portion of the name stripped out! | {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} | 564579430 |