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select(distinct=...) may produce faulty sql for sqlite

See original GitHub issue

This one works:

In [45]: db().select(db.player.country, distinct = True)
Out[45]: <Rows (40)>

In [46]: db._lastsql
Out[46]: 'SELECT DISTINCT player.country FROM player;'

But the other option given in the book does not:

In [47]: db().select(db.player.country, distinct = db.player.country)
OperationalError: near "ON": syntax error

In [48]: db._lastsql
Out[48]: 'SELECT DISTINCT ON (player.country) player.country FROM player;'

I didn’t test it with other DB engines since I don’t currently have one installed.

Issue Analytics

State:
Created 8 years ago
Comments:6 (6 by maintainers)

Top GitHub Comments

1reaction

gi0barocommented, Apr 19, 2016

@niphlod Damn, I ended the refactoring and forgotten this. We should re-start a discussion. I vote for the SyntaxError on sqlite when using DISTINCT ON.

0reactions

niphlodcommented, Apr 20, 2016

start away, my previous semi-detailed comment pretty much lays every path that can be taken.

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