xxd is a utility from Vim to read Hexdump. It is possible to install it standalone from AUR repositories in ArchLinux.
yay -S xxd-standalonexxd
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Export Postgres
byteacolumn to binary fileThe
\copyallows you to export tables to your local file system. To exportbyteacolumns and export to binary file you can encode it as hexadecimal and decode it using xxd