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Use query.params() for selectable queries #139

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2 changes: 2 additions & 0 deletions databases/core.py
Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,8 @@ def _build_query(

return query.bindparams(**values) if values is not None else query
elif values:
if query.is_selectable:
return query.params(**values)
return query.values(**values)

return query
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10 changes: 10 additions & 0 deletions tests/test_databases.py
Original file line number Diff line number Diff line change
Expand Up @@ -143,6 +143,16 @@ def run_sync(*args, **kwargs):

return run_sync

@pytest.mark.parametrize("database_url", DATABASE_URLS)
@async_adapter
async def test_selectable_queries_with_params(database_url):
async with Database(database_url) as database:
async with database.transaction(force_rollback=True):
param = sqlalchemy.bindparam('price')
query = sqlalchemy.select([prices]).where(prices.c.price < param)
rows = await database.fetch_all(query=query, values={'price': 10})
list(rows)


@pytest.mark.parametrize("database_url", DATABASE_URLS)
@mysql_versions
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