etr2460 commented on a change in pull request #8058: Add docstrings and typing
to db_engine_specs and sql_parse
URL:
https://github.com/apache/incubator-superset/pull/8058#discussion_r315417347
##########
File path: superset/db_engine_specs/presto.py
##########
@@ -944,22 +955,22 @@ def where_latest_partition(cls, table_name, schema,
database, qry, columns=None)
column_names = {column.get("name") for column in columns or []}
for col_name, value in zip(col_names, values):
if col_name in column_names:
- qry = qry.where(Column(col_name) == value)
- return qry
+ query = query.where(Column(col_name) == value)
+ return query
@classmethod
def _latest_partition_from_df(cls, df):
if not df.empty:
return df.to_records(index=False)[0].item()
@classmethod
- def latest_partition(cls, table_name, schema, database, show_first=False):
+ def latest_partition(
+ cls, table_name: str, schema: str, database, show_first: bool = False
+ ) -> Tuple[str, str]:
Review comment:
This typing isn't quite right here:
I believe we return a `Tuple[List[str], Optional[List[str]]]`
`column_names` is a list (as we call `len` on it) and the second piece of
the tuple can be `None` (see method above)
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