fuse meta data

segment.json

{
    "format_version": 1,
    "blocks": [
        {
            "row_count": 1,
            "block_size": 76,
            "file_size": 360,
            "location": [
                "53/133/_b/ba4a60013e27479e856f739aefeadfaf_v0.parquet",
                0
            ],
            "compression": "Lz4Raw"
        }
    ],
    "row_count": 6227737,
    "block_count": 48,
    "perfect_block_count": 48,
    "uncompressed_byte_size": 5063523487,
    "compressed_byte_size": 1234618593,
    "index_size": 54732852,
    "col_stats": {
        "0": {
            "min": {
                "Number": {
                    "Int64": 4611687059256360000
                }
            },
            "max": {
                "Number": {
                    "Int64": 9223371562098364000
                }
            },
            "null_count": 0,
            "in_memory_size": 49821896,
            "distinct_of_values": 0
        },
	
	"1" : ....
	
    },
    ...
}