zhengruifeng commented on code in PR #37039:
URL: https://github.com/apache/spark/pull/37039#discussion_r912318495
##########
python/pyspark/sql/catalog.py:
##########
@@ -139,11 +140,40 @@ def listDatabases(self) -> List[Database]:
jdb = iter.next()
databases.append(
Database(
- name=jdb.name(), description=jdb.description(),
locationUri=jdb.locationUri()
+ name=jdb.name(),
+ catalog=jdb.catalog(),
+ description=jdb.description(),
+ locationUri=jdb.locationUri(),
)
)
return databases
+ def getDatabase(self, dbName: str) -> Database:
+ """Get the database with the specified name.
+ This throws an AnalysisException when the database cannot be found.
+
+ .. versionadded:: 3.4.0
+
+ Parameters
+ ----------
+ dbName : str
+ name of the database to check existence.
+
+ Examples
+ --------
+ >>> spark.catalog.getDatabase("default")
+ Database(name='default', catalog=None, description='default database',
...
Review Comment:
because of the old code path, which intilize a `Database` with `null`
catalog:
https://github.com/apache/spark/pull/36968/files#diff-d7036fd31ee9734405f0e877b79e36675d567b6f9acb844034383463e80a54ccR65-R67
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