Hello all
SA: 1.1.0b3
db: postgresql 9.5
I have a problem with method on_conflict_do_update for pg specific insert.
Precisely with the where argument. It looks like wrong SQL statement is
generated.
example:
class Foo(Base):
...
bar = Column(Integer)
insert_stmt = insert(Foo)
on_update_stmt = insert_stmt.on_conflict_do_update(
set_=dict(
bar=insert_stmt.excluded.bar,
),
where=(Foo.bar < insert_stmt.excluded.bar)
)
session.execute(on_update_stmt, data)
it gives error and rightly so:
> column reference "bar" is ambiguous
SQL looks like that:
SQL: 'INSERT INTO foo (...) VALUES (...) ON CONFLICT (...) DO UPDATE SET
bar = excluded.bar WHERE bar < bar'
WHERE clause is not expanded properly, the alias EXCLUDED is omitted. Is
this a bug or I'm doing sht wrong?
the workaround I use is:
...
where=(text('foo.bar < EXCLUDED.bar'))
...
Cheers
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