remove catalog requirement in get_tables

Signed-off-by: varun-edachali-dbx <varun.edachali@databricks.com>

Author: varun-edachali-dbx

src/databricks/sql/backend/sea/backend.py

@@ -695,9 +695,6 @@ def get_tables(
         table_types: Optional[List[str]] = None,
     ) -> "ResultSet":
         """Get tables by executing 'SHOW TABLES IN catalog [SCHEMA LIKE pattern] [LIKE pattern]'."""
-        if not catalog_name:
-            raise ValueError("Catalog name is required for get_tables")
-
         operation = (
             MetadataCommands.SHOW_TABLES_ALL_CATALOGS.value
             if catalog_name in [None, "*", "%"]

src/databricks/sql/backend/sea/utils/constants.py

@@ -60,8 +60,8 @@ class MetadataCommands(Enum):
     SHOW_TABLES_ALL_CATALOGS = "SHOW TABLES IN ALL CATALOGS"
     SHOW_COLUMNS = "SHOW COLUMNS IN CATALOG {}"
 
-    SCHEMA_LIKE_PATTERN = " SCHEMA LIKE '{}'"
-    TABLE_LIKE_PATTERN = " TABLE LIKE '{}'"
     LIKE_PATTERN = " LIKE '{}'"
+    SCHEMA_LIKE_PATTERN = " SCHEMA" + LIKE_PATTERN
+    TABLE_LIKE_PATTERN = " TABLE" + LIKE_PATTERN
 
     CATALOG_SPECIFIC = "CATALOG {}"

tests/unit/test_sea_backend.py

@@ -810,16 +810,6 @@ def test_get_tables(self, sea_client, sea_session_id, mock_cursor):
                     enforce_embedded_schema_correctness=False,
                 )
 
-                # Case 4: Without catalog name (should raise ValueError)
-                with pytest.raises(ValueError) as excinfo:
-                    sea_client.get_tables(
-                        session_id=sea_session_id,
-                        max_rows=100,
-                        max_bytes=1000,
-                        cursor=mock_cursor,
-                    )
-                assert "Catalog name is required for get_tables" in str(excinfo.value)
-
     def test_get_columns(self, sea_client, sea_session_id, mock_cursor):
         """Test the get_columns method with various parameter combinations."""
         # Mock the execute_command method