Gallery export

[phrizm]

Hello dear hyunsupul!
Its not even a Issue, but general information.
My client has your plugin installed, with like (8.000+ photos) and since we migrating from 2 different hosts i wanna try to understand the best way to export galleries log (like gallery=7777 - @list of photos included in this gallery).
Migrating from one host to another keeps the galleries, so its should be somewhere.
Is there any of this information maybe in mysql database, since i cant find none of this. Or can you provide the best practice to export this galleries?

Many Thanks!