[superset] branch john-bodley--trino-presto updated: Update presto.py

[johnbodley]

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johnbodley pushed a commit to branch john-bodley--trino-presto
in repository https://gitbox.apache.org/repos/asf/superset.git


The following commit(s) were added to refs/heads/john-bodley--trino-presto by 
this push:
     new c7f04ee390 Update presto.py
c7f04ee390 is described below

commit c7f04ee3904424e2c067af71f4e7c81c5906f338
Author: John Bodley <4567245+john-bod...@users.noreply.github.com>
AuthorDate: Fri Jul 15 20:03:46 2022 -0700

    Update presto.py
---
 superset/db_engine_specs/presto.py | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/superset/db_engine_specs/presto.py 
b/superset/db_engine_specs/presto.py
index 952574be09..3ff77ab986 100644
--- a/superset/db_engine_specs/presto.py
+++ b/superset/db_engine_specs/presto.py
@@ -906,21 +906,23 @@ class PrestoEngineSpec(BaseEngineSpec):  # pylint: 
disable=too-many-public-metho
         indexes = database.get_indexes(table_name, schema_name)
         if indexes:
             cols = indexes[0].get("column_names", [])
-            full_table_name = table_name
-            if schema_name and "." not in table_name:
-                full_table_name = "{}.{}".format(schema_name, table_name)
-            pql = cls._partition_query(full_table_name, database)
-            col_names, latest_parts = cls.latest_partition(
-                table_name, schema_name, database, show_first=True
-            )
+            
+            if cols:
+                full_table_name = table_name
+                if schema_name and "." not in table_name:
+                    full_table_name = "{}.{}".format(schema_name, table_name)
+                pql = cls._partition_query(full_table_name, database)
+                col_names, latest_parts = cls.latest_partition(
+                    table_name, schema_name, database, show_first=True
+                )
 
-            if not latest_parts:
-                latest_parts = tuple([None] * len(col_names))
-            metadata["partitions"] = {
-                "cols": cols,
-                "latest": dict(zip(col_names, latest_parts)),
-                "partitionQuery": pql,
-            }
+                if not latest_parts:
+                    latest_parts = tuple([None] * len(col_names))
+                metadata["partitions"] = {
+                    "cols": cols,
+                    "latest": dict(zip(col_names, latest_parts)),
+                    "partitionQuery": pql,
+                }
 
         # flake8 is not matching `Optional[str]` to `Any` for some reason...
         metadata["view"] = cast(