Issue migrated from Redmine: https://redmine.postgresql.org/issues/5272
Originally created by ivan khilitsky at 2020-03-18 15:21:05 UTC.

OS: Windows 10.
More than 500MB of data can not be downloaded from the pgAdmin. When I try to download more than 500MB (about 500MB download takes 6-8 minutes) I take an empty file or 524 error.