LIST FILES IN STAGE
Syntax
LIST { internalStage | externalStage } [ PATTERN = '<regex_pattern>' ]
Where:
  internalStage ::= @<internal_stage_name>
  externalStage ::= @<external_stage_name>
Examples
list @named_external_stage PATTERN = 'ontime.*parquet';
+-----------------------+
| file_name             |
+-----------------------+
| ontime_200.parquet    |
| ontime_200_v1.parquet |
+-----------------------+