feat: improve presto query perf (#11069)

apache · Sep 28, 2020 · 0f7e90f · 0f7e90f
1 parent 046bd02
commit 0f7e90f
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/superset/db_engine_specs/presto.py b/superset/db_engine_specs/presto.py
@@ -730,10 +730,10 @@ def extra_table_metadata(
             )
 
             if not latest_parts:
-                latest_parts = tuple([None] * len(col_names))  # type: ignore
+                latest_parts = tuple([None] * len(col_names))
             metadata["partitions"] = {
                 "cols": cols,
-                "latest": dict(zip(col_names, latest_parts)),  # type: ignore
+                "latest": dict(zip(col_names, latest_parts)),
                 "partitionQuery": pql,
             }
 
@@ -925,6 +925,7 @@ def _latest_partition_from_df(cls, df: pd.DataFrame) -> Optional[List[str]]:
         return None
 
     @classmethod
+    @cache.memoize(timeout=60)
     def latest_partition(
         cls,
         table_name: str,