You are about to download the GeDR3mock catalog, a catalog of about 2 × 109 simulated objects. Be sure you read the table info before and you have understood that the main purpose of this data is trying out database queries and it's random numbers otherwise.
In case you really want the dump: it is 461 GiB of gz-compressed ASCII. On a line with a constant throughput of 10 Mbit/s, downloading this will take more than 4 days.
Some (much smaller) ancillary data is also available in bulk form (and with inferior metdata; use our VO services for that) at gedr3mock ancillary static data.
If your download is interrupted after transferring sufficiently many Gigabytes, let us know and we'll try to assist you in resuming it.