Update get_columns_list() to accept tables with spaces in the name (#973

)

* handle table names with spaces or invalid characters

* handle instances where quotes already exist around table and schema names

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Co-authored-by: Erica Renée Faulkenberry <erica@Ericas-MacBook-Pro-M3.local>

parsons/databases/redshift/rs_table_utilities.py

@@ -428,6 +428,17 @@ def get_columns_list(self, schema, table_name):
         `Returns:`
             A list of column names.
         """
+        schema = (
+            f'"{schema}"'
+            if not (schema.startswith('"') and schema.endswith('"'))
+            else schema
+        )
+
+        table_name = (
+            f'"{table_name}"'
+            if not (table_name.startswith('"') and table_name.endswith('"'))
+            else table_name
+        )
 
         first_row = self.query(f"select * from {schema}.{table_name} limit 1")