{
    "required_tables": [
        {
            "name_prefix": "rocpd_string",
            "required_columns": [
                "id",
                "string"
            ],
            "validation_queries": [
                {
                    "comparison": "greater_than",
                    "description": "Verify that MPI function name strings are present in the table",
                    "error_message": "No 'MPI_' strings found in the table rocpd_string",
                    "expected_result": 0,
                    "query": "SELECT COUNT(*) FROM {table_name} WHERE string LIKE 'MPI\\_%' ESCAPE '\\';"
                }
            ]
        },
        {
            "name": "regions",
            "required_columns": [
                "tid",
                "start",
                "end",
                "name",
                "category"
            ],
            "validation_queries": [
                {
                    "comparison": "equals",
                    "description": "Verify entries have non-zero start times",
                    "error_message": "Found entries with zero start times in regions table",
                    "expected_result": 0,
                    "query": "SELECT COUNT(*) FROM {table_name} WHERE start = 0"
                },
                {
                    "comparison": "greater_than",
                    "description": "Verify that 'mpi' appears in category at least once in table regions",
                    "error_message": "'mpi' category entries are fewer than expected in regions",
                    "expected_result": 0,
                    "query": "SELECT COUNT(*) FROM {table_name} WHERE category = 'mpi';"
                }
            ]
        }
    ]
}